Case 1:20-cv-00393-LO-TCB Document 751-4 Filed 06/22/21 Page 1 of 4 PageID# 20482
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`Exhibit 25
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`Case 1:20-cv-00393-LO-TCB Document 751-4 Filed 06/22/21 Page 2 of 4 PageID# 20483
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`CONFIDENTIAL BUSINESS INFORMATION – SUBJECT TO PROTECTIVE ORDER
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`IN THE UNITED STATES DISTRICT COURT
`FOR THE EASTERN DISTRICT OF VIRGINIA
`ALEXANDRIA DIVISION
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`REBUTTAL EXPERT REPORT OF JOSEPH C. McALEXANDER III
`REGARDING VALIDITY OF U.S. PATENT NUMBERS:
`6,803,545 AND 10,420,374
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`RJR STRATEGIC HOLDINGS, INC. AND R.J. REYNOLDS VAPOR COMPANY
`vs.
`ALTRIA CLIENT SERVICES LLC; PHILIP MORRIS USA INC.; and
`PHILIP MORRIS PRODUCTS S.A.
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`Civil Action No. 1:20-cv-00393-LO-TCB
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`March 24, 2021
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`Case 1:20-cv-00393-LO-TCB Document 751-4 Filed 06/22/21 Page 3 of 4 PageID# 20484
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`CONFIDENTIAL BUSINESS INFORMATION – SUBJECT TO PROTECTIVE ORDER
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`8.2
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`Prior Art Summary532
`8.2.1 Chinese Utility Model Patent Publication No. CN 201482667 U (“Liao”)
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`556. Chinese Utility Model Patent Publication No. CN 201482667 U (“Liao”) entitled
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`“Electronic atomizer.” The inventor of this reference is the same inventor as the ’374 Patent.
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`557. Liao does not describe the internal functioning or details of its airflow sensing
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`apparatus. Liao provides only that:
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`The sensing apparatus 4 is a capacitive airflow sensor. The airflow
`sensing switch circuit 21 is configured to sense smoking actions of
`a user, and the circuit provides an airflow sensing function by
`detecting a capacitance value of an external capacitive airflow
`sensor C1. When the user smokes, an airflow is generated. When
`the airflow flows through the capacitive airflow sensor C1, the
`capacitance value of the capacitive airflow sensor C1 changes,
`thereby triggering the airflow sensing switch circuit 21.533
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`558. Liao’s electronic atomizer includes a housing and a processing chip, a heating
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`apparatus, a sensing apparatus, an airflow sensor and a battery in the housing.534 Liao does not
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`disclose the material for the housing 1.
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`8.2.2 U.S. Patent No. 8,661,910 (“McLaughlin”)
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`559. U.S. Patent No. 8,661,910 (“McLaughlin”) entitled “Capacitive Sensor” relates to
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`capacitive air flow sensors for use in an oxygen conserving delivery system for general aviation.535
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`532 Dr. Blalock provides a “summary” of U.S. Patent No. 5,134,886 (“Ball”) at paragraphs 273-
`277 of his report, but does not rely on the reference for any of his combinations or otherwise
`provide any analysis regarding the reference. I reserve all rights to amend, modify, or
`supplement my opinions should Dr. Blalock be permitted to rely on the reference in the future.
`533 Liao, at ¶ [0016].
`534 Liao, at ¶ [0004], [0011].
`535 McLaughlin, at 2:13-17 (“[W]hen the subject invention is used with an oxygen delivery
`system for general aviation”); 2:67-3:4 (“In a preferred application of the preferred embodiment
`of the invention … as part of a supplemental oxygen conserving delivery system for use in
`general aviation.”); (“Alternatively, the power source may be external to the oxygen delivery
`system such as the typical 12 volt power available in general aviation aircraft”); 8:21-22
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`1:20-cv-00393-LO-TCB, McAlexander Rebuttal Expert Report – Validity
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`185
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`Case 1:20-cv-00393-LO-TCB Document 751-4 Filed 06/22/21 Page 4 of 4 PageID# 20485
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`CONFIDENTIAL BUSINESS INFORMATION – SUBJECT TO PROTECTIVE ORDER
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`10
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`CONCLUDING REMARKS
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`1012. I understand that any further finding of the Court regarding claim construction, or
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`receipt of any additional information, may require me to amend or supplement my opinions. If
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`amendments or supplements to this report are necessary, I will provide those in a timely manner.
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`Dated: March 24, 2021
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`______________________________
`Joseph C. McAlexander III
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`1:20-cv-00393-LO-TCB, McAlexander Rebuttal Expert Report – Validity
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`324
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