(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT)
`
`(10) International Publication Number
`WO 2018/042348 Al
`
`AO,AT, AU, AZ, BA, BB, BG,BU, BN, BR, BW,BY, BZ,
`CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO,
`DZ, EC, EE, EG, ES, FL, GB, GD, GE, GH, GM, GT, HN,
`HR,HU,ID,IL,IN,IR,IS, JO, JP, KE, KG, KH,KN,KP,
`KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME,
`MG, MK, MN, MW, MX,MY, MZ, NA, NG,NI, NO, NZ,
`OM,PA, PE, PG, PH,PL, PT, QA, RO, RS, RU, RW,SA,
`SC, SD, SE, SG, SK, SL, SM,ST, SV, SY, TH, TJ, TM, TN,
`TR, TT, TZ, UA, UG,US, UZ, VC, VN, ZA, ZM, ZW.
`
`Designated States (unless otherwise indicated, for every
`kind of regional protection available): ARIPO (BW,GII,
`GM,KE, LR, LS, MW, MZ, NA, RW,SD, SL, ST, SZ, TZ,
`UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ,
`TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK,
`EE, ES, FI, FR, GB, GR, HR, HU,IE,IS, IT, LT, LU, LV,
`MC, MK, MT, NL, NO,PL, PT, RO, RS, SF, SI, SK, SM,
`TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW,
`KM,ML, MR, NE, SN, TD, TG).
`
`> =
`
`WIPOIPCT
`
`(19) World Intellectual Property
`Organization
`International Bureau
`
`(43) International Publication Date
`08 March 2018 (08.03.2018)
`
`(51) International Patent Classification:
`£21B 41/00 (2006.01)
`E21B 7/00 (2006.01)
`E21B 15/00 (2006.01)
`F218 8/00 (2006.01)
`
`(21) International Application Number:
`
`PCT/IB2017/055218
`
`(22) International Filing Date:
`
`(25) Filing Language:
`
`(26) Publication Language:
`
`30 August 2017 (30.08.2017)
`
`English
`
`English
`
`(84)
`
`(30) Priority Data:
`62/381,941
`
`31 August 2016 (31.08.2016)
`
`US
`
`(71) Applicant: APOLLO ENERGY SERVICES CORP
`[CA/CA]; Building 1000, 10213 Township Road 284a, PO
`BOX 469, Crossfield, Alberta TOM OSO (CA).
`
`(72) Inventor: GOWANLOCK, Matthew; 2336 Baywater
`Crescent SW,Airdrie, Alberta T4B OT4 (CA).
`
`(81) Designated States (unless otherwise indicated, for every
`kind of national protection available): AE, AG, AL, AM,
`
`(54) Title: DRILLING RIG WITH ATTACHED LIGHTING SYSTEM AND METHOD
`
` ~ 204
`
`203 A
`
`FIG. 2
`
`(57) Abstract: An attachable lighting system for a drilling rig. A methodof providing lightingto a drilling rig site comprising,attaching
`at least one light fixture directly to the crown ofa drilling rig on each ofat least two sides, wherein thelight fixture contains a fixed
`or removable light fixture attachment connecting the light fixture to the crown, resulting in one or more of enhanced evenness of site
`lighting, reduced shadows,reducedlight pollution, reduced power consumption and/or reduced diesel usage.
`
`[Continued on next page]
`Petitioner Ensign
`Exhibit 1003 - 1 of 16
`
`
`
`wo2018/042348Ax/IININIMNIVIMINTNTNNATIDTNETAMIGYNMR
`
`Petitioner Ensign
`Exhibit 1003 - 1 of 16
`
`

`

`WO 2018/042348 A1 |IHMITMN TIMIAN ATT TATATANTACAA
`
`Declarations under Rule 4.17:
`
`— as to applicant's entitlement to apply for and be granted a
`patent (Rule 4.17(ii))
`— as to the applicant's entitlement to claim the priority of the
`earlier application (Rule 4.17/(iii))
`Published:
`
`— with international search report (Art. 21(3))
`
`Petitioner Ensign
`Exhibit 1003 - 2 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 2 of 16
`
`

`

`WO2018/042348
`
`PCT/IB2017/055218
`
`SYSTEMANDMETHOD
`
`DRILLING RIG WITH ATTACHED LIGHTING
`
`Cross-Reference to Related Applications
`
`[0001]
`
`This international application claims the benefit of U.S. Provisional Application Ser.
`
`No. 62/381,941, filed August 31, 2016 which mayrelate to subject matter disclosed in one or
`
`more of U.S. Applications Ser. No. 62/366,377,filed July 25, 2016; Ser. No. 62/196,556, filed
`
`July 24, 2015; Ser. No. 14/093,097, filed November 29, 2013; Ser. No. 14/632,592, filed
`
`February 26, 2015; Ser. No. 62/109,966, filed January 30, 2015; and Ser. No. 62/127,020,filed
`
`March 2, 2015.
`
`The entirety of each of the aforementioned applications is specifically
`
`incorporated herein by reference for all purposes.
`
`Field of the Invention
`
`[0002]
`
`The present invention relates generally to the field of drilling apparatuses, such as oil
`
`drilling rig arrangements, and in particular to a lighting system for use on a drilling rig
`
`Backgroundof the Invention
`
`[0003]
`
`Drilling rigs are used to form wellbores for the purpose of extracting oil, natural gas
`
`or other fluids from subsurface deposits. Drilling rigs can also be used for sampling subsurface
`
`mineral deposits, testing rock or ground fluid properties and for installing subsurface utilities,
`
`instrumentations, tunnels or wells.
`
`In implementation, drilling rigs may be mobile equipment
`
`transportable by truck,rail, trailers, or similar, rigs may also be semi-permanent and permanent
`
`fixtures as in the case for oil drilling of large wells. Marine-basedstructures are also widely
`
`known. Generally, the term drilling rig refers to an arrangement of equipment that is used to
`
`penetrate the subsurface of the earth’s crust.
`
`[0004]
`
`Drilling operations typically occur during daylight hours and visibility in and around
`
`the drilling rig has historically only been required when manual work is being done, inspection
`
`and calibration, for example. There is a desire to increase productivity by providing visibility
`
`during hours of low daylight, and this has thus far been accomplished by providing mobile
`
`lighting arrangements on vehicles proximate the drilling rig, or otherwise manually adding or
`
`providing impromptu lighting arrangements.
`
`Petitioner Ensign
`Exhibit 1003 - 3 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 3 of 16
`
`

`

`WO2018/042348
`
`PCT/IB2017/055218
`
`[0005]
`
`These arrangements are inadequate and not readily adaptable to systematic visibility
`
`improvements in appropriate locations arounda drilling rig.
`
`Summaryof the Invention
`
`[0006]
`
`A method of providing lighting to a drilling rig site is described herein including
`
`attaching at least one light fixture directly to the crown ofa drilling rig on each ofat least two
`
`sides of the crown, wherethe light fixture contains a fixed or removable light fixture attachment
`
`connecting the at least one light fixture to the crown, resulting in one or more of enhanced
`
`evenness ofsite lighting, reduced site shadows, reducedsite light pollution, reduced site power
`
`consumption and/or reduced site diesel usage.
`
`[0007]
`
`Additional embodiments described herein include:
`
`the method described above
`
`where the light fixture and light fixture attachment are a single piece; the method described
`
`above where the light fixture is fixed or adjustable; the method described above wherethe light
`
`fixtures are attached around the perimeter of the crown; the method described above where the
`
`light fixtures are attached to all sides of the crown; the method described above where more than
`
`one light fixture is attached to each side of the crown; the method described above where said
`
`each light fixture attachment holds one or more light fixture spaced vertically or horizontally
`
`from each other; the method described above where eachlighting fixture can swivel and/ortilt;
`
`the method described above additionally including secondary containment;
`
`the method
`
`described above where the crown forms a generally rectangular shape; and the method described
`
`above wherethe lighting is provided to 180 degrees to 360 degrees aroundthedrilling site.
`
`[0008]
`
`A drilling rig is also described including a derrick or mast and crown, having a
`
`drilling site lighting system attached thereto, comprising at least one light fixture attached
`
`directly to the crown on eachofat least two sides, wherein the light fixture contains a fixed or
`
`removable light fixture attachment connecting the light fixture to the crown, resulting in one or
`
`more of enhanced evennessofsite lighting, reduced site shadows, reducedsite light pollution,
`
`reduced site power consumption and/or reducedsite diesel usage.
`
`[0009]
`
`Additional embodiments described herein include:
`
`the drilling rig described above
`
`where the light fixture and light fixture attachment are a single piece; the drilling rig described
`
`above where the light fixture is fixed or adjustable; the drilling rig described above where the
`
`light fixtures are attached around the perimeter of the crown; the drilling rig described above
`
`where the light fixtures are attached to all sides of the crown; the drilling rig described above
`
`Petitioner Ensign
`Exhibit 1003 - 4 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 4 of 16
`
`

`

`WO2018/042348
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`PCT/IB2017/055218
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`where more than onelight fixture is attached to each side of the crown; the drilling rig described
`
`above where said each light fixture attachment holds more than one light fixture spaced
`
`vertically or horizontally from each other; the drilling rig described above where each lighting
`
`fixture can swivel and/ortilt; the drilling rig described above additionally including secondary
`
`containment; the drilling rig described above where the crown forms a generally rectangular
`
`shape; and the drilling rig described above where the lighting is provided to 180 degrees to 360
`
`degrees aroundthe drilling site.
`
`[0010]
`
`These and additional embodiments are further described below.
`
`Brief Description of the Drawings
`
`[0011]
`
`Embodiments will now be described, by way of example only, with reference to the
`
`attached Figures, wherein:
`
`[0012]
`
`[0013]
`
`[0014]
`
`herein.
`
`Figure 1A is a lighting system mountedon a drilling rig as described herein.
`
`Figure 1B is a side view of one embodimentofa lightfixture as described herein.
`
`Figure 2 is a perspective view of one embodiment of a light fixture as described
`
`[0015]
`
`Figure 3 is a perspective view showing an embodiment of secondary containment as
`
`described herein.
`
`Detailed Description
`
`[0016]
`
`An embodiment of a conventional drilling rig 40 with the light fixtures described
`
`herein is illustrated in Figure 1A, where the drilling rig 40 includes a derrick 14, which provides
`
`a support structure for a majority of the equipmentused to raise and lowerdrillstring 25 into and
`
`out of a wellbore. The drillstring 25 may be an assembled collection of drillpipe, drill collars, or
`
`any other assembled collection of assorted tools and equipment connected together and run into
`
`the wellbore to facilitate the drilling of a well. The drillstring 25 may be raised and lowered into
`
`and out of the wellbore by the draw-works 7, which includes a spool powered by a motor or
`
`other power source 5. A drill line 12, which maybea thick, stranded metal cable, is run through
`
`a travelling block 11. Typically, the crown block 13 remains stationary while travelling block
`
`11 moves vertically with the drillstring 25. The combination of the crown block 13 and the
`
`travelling block 11 provides a significant mechanical advantage for lifting the drillstring 25.
`
`Petitioner Ensign
`Exhibit 1003 - 5 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 5 of 16
`
`

`

`WO2018/042348
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`PCT/IB2017/055218
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`Further, a swivel 18 may be attached to the travelling block 11 to allow rotation ofthe drillstring
`
`25 without twisting the travelling block 11. Drill pipes 16 and hole casing 26 are also shown.
`
`[0017]
`
`The drilling rig 40 further includes a rotary table 20mounted in a rig floor 21, which
`
`is used to rotate the drillstring 25 along with a kelly drive 19. Kelly drive 19, attached at an
`
`upper end to the swivel 18 and at a lower endto the drillstring 25, is inserted through the rotary
`
`table 20 to rotate the drillstring 25 (drillstring rotation shown by arrow “R”). Kelly drive 19 may
`
`be square, hexagonal, or any other polygonal-shaped tubing and is able to movefreely vertically
`
`while the rotary table 20rotates it. Alternatively, drilling rig 30 may include a top drive (not
`
`shown)
`
`in place of kelly drive 19 and rotary table 20. Additionally, blowout preventers
`
`(“BOPs”) may be located below the rig floor 21 and installed atop a wellhead 27 to prevent
`
`fluids and gases from escaping from the wellbore. An annular BOP 23 and one or more ram
`
`BOPs 24 are shown and are commonly understoodin theart.
`
`[0018]
`
`During drilling operations, drilling fluid may be circulated through the system to
`
`carry cuttings away from the bottom of the wellbore as drilling progresses. Drilling fluid may be
`
`stored in mud tanks 1 before being drawn through suction line 3 by mud pumps4. Drilling fluid
`
`(drilling fluid route is indicated by arrows “F’”’) is then pumped from mud pumps 4 through a
`
`hose 6, up a stand pipe 8, through a flexible hose 9, and down into the wellbore. Drilling fluid
`
`returning from the wellbore is routed through a flow line 28 to shakers 2, which are used to
`
`separate drill cuttings from the drilling fluid before it is pumped back down the wellbore.
`
`[0019]
`
`The light fixtures described herein (29) are shown attached directly to the crown, in
`
`this instance visible on three sides. Thelight fixture (101 and 203) as shownin this embodiment
`
`also in Figure 1B and in perspective view in Figure 2 is held by a bracket (102 and 204) which
`
`permits the light fixture to swivel both in a horizontal and vertical orientation. And in this
`
`embodiment,
`
`the light fixture is connected to the crown directly through the light fixture
`
`attachment (103 and 202). The light fixtures can be commercially purchased or custom designed
`
`with commercially available materials to suit the use and situation, including specific materials
`
`of use (e.g., carbon steel or aluminum,etc.) and light power needs or desired.
`
`[0020]
`
`It should also be noted that
`
`the entire unit can also be built with secondary
`
`containment on all the equipment as demonstrated in Figure 3. For example, safety certified
`
`nets (302) around each light fixture (301) can be secured to lugs or other attachment points on
`
`the crown,
`
`safety certified cables can also be attached to each light fixture and likewise be
`
`secured to lugs or other attachment points on the crown,etc. so that nothing can drop off of or
`
`Petitioner Ensign
`Exhibit 1003 - 6 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 6 of 16
`
`

`

`WO2018/042348
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`PCT/IB2017/055218
`
`fall from the unit, Le., it is constructed to meet or exceed all industry “Drops standards” -
`
`the
`
`drop program standard to build equipment ensuring things don’t fall or get dropped from
`
`heights.
`
`[0021]
`
`The scope of the claims should not be limited by the preferred embodimentsset forth
`
`in description of the preferred embodiments or in the examples, but should be given the broadest
`
`interpretation consistent with the description as a whole.
`
`Petitioner Ensign
`Exhibit 1003 - 7 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 7 of 16
`
`

`

`WO2018/042348
`
`PCT/IB2017/055218
`
`CLAIMS:
`
`1. A method of providing lighting to a drilling rig site comprising, attaching at least one
`
`light fixture directly to the crown of a drilling rig on each of at least two sides of the
`
`crown, wherein the light fixture contains a fixed or removable light fixture attachment
`
`connecting the at least one light fixture to the crown, resulting in one or more of enhanced
`
`evenness of site lighting, reduced site shadows, reducedsite light pollution, reduced site
`
`power consumption and/or reducedsite diesel usage.
`
`2. The method of claim 1, wherein the light fixture and light fixture attachment comprise a
`
`single piece.
`
`3. The method of claim 1, wherein the light fixture is fixed or adjustable.
`
`4. The method of claim 1, wherein the light fixtures are attached around the perimeter of the
`crown.
`
`5. The method of claim 1, wherein the light fixtures are attachedto all sides of the crown.
`
`6. The method of claim 1, comprising more than one light fixture attached to each side of
`
`the crown.
`
`7. The method of claim 1, wherein said each light fixture attachment holds one or more light
`
`fixture spaced vertically or horizontally from each other.
`
`8. The method of claim 1, wherein each lighting fixture can swivel and/ortilt.
`
`9. The method of claim 1, additionally including secondary containment.
`
`10. The method of claim 1 wherein the crown forms a generally rectangular shape.
`
`11. The method of claim 1, wherein the lighting is provided to 180 degrees to 360 degrees
`
`around the drillingsite.
`
`12. A drilling rig including a derrick or mast and crown, having a drilling site lighting system
`
`attached thereto, comprising at least one light fixture attached directly to the crown on
`
`each ofat least two sides, wherein the light fixture contains a fixed or removable light
`
`fixture attachment connecting the light fixture to the crown, resulting in one or more of
`
`enhanced evenness of site lighting, reduced site shadows, reduced site light pollution,
`
`reduced site power consumption and/or reducedsite diesel usage.
`
`13. The drilling rig of claim 12, wherein the light fixture and light fixture attachment
`
`comprise a single piece.
`
`14. The drilling rig of claim 12, wherein the light fixture is fixed or adjustable.
`
`Petitioner Ensign
`Exhibit 1003 - 8 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 8 of 16
`
`

`

`WO2018/042348
`
`PCT/IB2017/055218
`
`15. The drilling rig of claim 12, wherein the light fixtures are attached around the perimeter
`
`of the crown.
`
`16. The drilling rig of clatm 12, wherein the light fixtures are attached to all sides of the
`crown.
`
`17. The drilling rig of claim 12, comprising more than one light fixture attached to two or
`
`more sides of the crown.
`
`18. The drilling rig of claim 12, wherein said each light fixture attachment holds more than
`
`one light fixture spaced vertically or horizontally from each other.
`
`19. The drilling rig of claim 12, wherein each lighting fixture can swivel and/ortilt.
`
`20. The drilling rig of claim 12, additionally including secondary containment.
`
`21. The drilling rig of claim 12, wherein the crown formsa generally rectangular shape.
`
`22. The drilling rig of claim 12, wherein the lighting is provided to 180 degrees to 360
`
`degrees aroundthe drilling site.
`
`Petitioner Ensign
`Exhibit 1003 - 9 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 9 of 16
`
`

`

`WO2018/042348
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`PCT/IB2017/055218
`
`1/3
`
`
`
`Petitioner Ensign
`Exhibit 1003 - 10 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 10 of 16
`
`

`

`WO2018/042348
`
`2/3
`
`PCT/IB2017/055218
`
`ca
`
`
`
`=Poe
`
`Petitioner Ensign
`Exhibit 1003 - 11 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 11 of 16
`
`

`

`WO2018/042348
`
`PCT/IB2017/055218
`
`3/3
`
`
`/QOeyeeAWN OTmntycorteviene1cenoosezeel
`==oe i.
`ete:ages
`
`
`erste:on,eee:
`oe
`
`Seeseetmoe
`aeeswesesasSts
`
`7
`
`as
`
`
`
`phere¢
`
`Petitioner Ensign
`Exhibit 1003 - 12 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 12 of 16
`
`

`

`INTERNATIONAL SEARCH REPORT
`
`International application No.
`PCT/IB2017/055218
`
`A.
`
`CLASSIFICATION OF SUBJECT MATTER
`
`IPC: E21B 41/00 (2006.01), E21B 15/00 (2006.01), E21B 7/00 (2006.01), F218 8/00 (2006.01)
`
`According to International Patent Classification (IPC) or to both national classification and IPC
`
`B. FIELDS SEARCHED
`
`Minimum documentation searched(classification system followed by classification symbols)
`IPC: E21B 41/00 (2006.01), E21B 15/00 (2006.01), E21B 7/00 (2006.01), F21S 8/00 (2006.01)
`
`Documentation searched other than minimum documentation to the extent that such documents are includedin the fields searched
`
`
`
`Electronic database(s) consulted during the international search (name of database(s) and, where practicable, search terms used)
`
`Canadian Patents Database, Questel-Orbit (FamPat)
`
`Keywords: lighting, drilling, fixture, crown, drill+, rig, reduct+, shadow?, evenness, power
`
`C. DOCUMENTS CONSIDERED TO BE RELEVANT
`
`Citation of document, with indication, where appropriate, of the relevant passages
`
`Relevantto claim No.
`
`Y
`
`Y
`
`Y
`
`Y
`
`CA2928251A1 (GOWANLOCK,M.etal.) 04 June 2015 (04-06-2015)
`*Same Applicant and Inventor*
`*Abstract; Para[0041, 42, 44, 46, 47]; Fig. 1, 3, 4, 6*
`
`US2006/0176708A1 (GORDIN,et al.) August 10, 2006
`
`CN203215413U (DALH.et al.) 25 September 2013 (25-09-2013)
`*Machinetranslation from Chinese to English using Questel-Orbit*
`*Abstract; Fig. 1*
`
`US2763466A (LEHR,P.E, et al.) 18 September 1956 (18-09-1956)
`*Col. 2, lines 19-25; Figs. 1, 2*
`
`re Further documentsare listed in the continuation ofBox C.
`Special categories of cited documents:
`” !document defining the general state of the art which is not considered
`to be ofparticular relevance
`earlier application or patent but published on or after the international
`filing date
`document which may throw doubts on priority claim(s) or which is
`cited to establish the publication date of anothercitation or other
`special reason (as specified)
`document referring to an oral disclosure, use, exhibition or other means
`
`document publishedprior to the international filing date but later than
`the priority date claimed
`
`IM See patent family annex.
`“T”
`later document published after the international filing date or priority
`date and not in conflict with the application but cited to understand
`the principle or theory underlying the invention
`document of particular relevance; the claimed invention cannot be
`considered novel or cannot be considered to involve an inventive
`step when the documentis taken alone
`document ofparticular relevance; the claimed invention cannot be
`considered to involve an inventive step when the documentis
`combined with one or more other such documents, such combination
`being obviousto a person skilled in the art
`document memberof the same patent family
`
`Date of the actual completion of the international search
`06 October 2017 (06-10-2017)
`
`Date of mailing ofthe international search report
`19 December 2017 (19-12-2017)
`
`Nameand mailing address of the ISA/CA
`Canadian Intellectual Property Office
`Place du Portage I, C114 - 1st Floor, Box PCT
`50 Victoria Street
`
`Gatineau, Quebec K1A 0C9
`Facsimile No.: 819-953-2476
`
`Authorized officer
`
`William Tse (819) 639-7914
`
`Form PCT/ISA/210 (second sheet ) January 2015)
`
`Page 2 of 5
`
`Petitioner Ensign
`Exhibit 1003 - 13 of 16
`
`Petitioner Ensign
`Exhibit 1003 - 13 of 16
`
`

`

`INTERNATIONAL SEARCH REPORT
`
`Information on patent family members
`
`Patent Document
`Cited in Search
`
`Publication
`Date
`
`Report
`
`CA2928251Al
`
`04 June 2015 (04-06-2015)
`
`Patent Family
`Member(s)
`
`CA2928251A1
`CN105829635A
`MX2016005056A
`US2015153036A1
`US9316390B2
`US2015184840A1
`US2017023195A1
`W0O2015077871Al
`
`International application No.
`PCT/IB2017/055218
`Publication
`Date
`
`04 June 2015 (04-06-2015)
`03 August 2016 (03-08-2016)
`15 December 2016 (15-12-2016)
`04 June 2015 (04-06-2015)
`19 April 2016 (19-04-2016)
`02 July 2015 (02-07-2015)
`26 January 2017 (26-01-2017)
`04 June 2015 (04-06-2015)
`
`10 August 2006 (10-08-2006)
`
`
`
`
`
`
`
`
`US2006176708A1
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`CA2556614A1
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`CN1947474B
`CN101142439A
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`CN100591980C
`CN101142435A
`CN101142437A
`CN101142437B
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`CN101142438B
`CN101142440A
`CN101142440B
`CN101142441A
`CN101142441B
`CN101142445A
`CN101142445B
`CN101529553A
`CN101737656A
`CN101776235A
`CN101776235B
`EP1719392A1
`HK1113814A1
`HK1114152A1
`HK1114155A1
`HK1114156A1
`HK1114157A1
`HK1114158A1
`HK1144834A1
`KR20060114036A
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`Patent Document
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`Continued on Page5 of5...
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`Form PCT/ISA/210 (extra sheet) (January 2015)
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`Page 4 of 5
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`Petitioner Ensign
`Exhibit 1003 - 15 of 16
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`Petitioner Ensign
`Exhibit 1003 - 15 of 16
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`

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`INTERNATIONAL SEARCH REPORT
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`International application No.
`PCT/IB2017/055218
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`Patent Document
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`Form PCT/ISA/210 (extra sheet) (January 2015)
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`Page 5 of 5
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`Petitioner Ensign
`Exhibit 1003 - 16 of 16
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`Petitioner Ensign
`Exhibit 1003 - 16 of 16
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