`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
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`DYNACRAFTBSC,INC.,
`Petitioner,
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`v.
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`MATTEL,INC.,
`Patent Owner.
`
`Case IPR2018-00038
`Patent 7,222,684
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`DECLARATION OF ROBERT E. MIMLITCH,II
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`1
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`Mattel Ex. 2002
`Mattel Ex. 2002
`Dynacraft v. Mattel
`Dynacraft v. Mattel
`IPR2018-00038
`IPR2018-00038
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`
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`I, Robert E. Mimlitch,III, declare as follows,
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`1.
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`Iam one of the named inventors of U.S. Patent Nos. 7,222,684 and 7,950,978,
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`both entitled “System, Apparatus, and Methodfor Providing Control of a Toy Vehicle.”
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`2.
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`I am the Chief Technological Officer and a Co-Founderof Innovation First
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`International Inc., a company with its headquarters in Greenville, Texas.
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`3,
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`Innovation First is a design and engineering company that focuses in large part on
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`robotics-based toys for educating and entertaining children. Specifically, Innovation First
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`currently sells its HEXBUG and VEX Roboticsto children of varying ages.
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`4.
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`5.
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`I joined Innovation First in 1999, and have worked there continuously since.
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`Prior to Innovation First, I was a Senior Mechanical Engineer at Raytheon E-
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`Systems.
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`I worked at Raytheonfor the 11-year period from 1988 to 1999.
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`6,
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`Prior to Raytheon, I was a student at Texas Tech University.
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`I graduated from
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`Texas Tech in 1988 with a Bachelor of Science degree Mechanical Engineering.
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`i
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`Prior to focusing on child robotics, Innovation First was involved in motor speed
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`control. It was during that time period that Innovation First worked with Mattel’s Fisher-Price
`Power Wheels group on designing speed control circuitry for children’s ride-on products.
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`8.
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`With respect to the 684 and ’978 patents, Innovation First worked with Mattel to
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`seek to find a way to moresafely design the drive system of a battery-powered ride-on. These
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`products present several unique challenges to developers. First, there are several safety
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`considerations that are critical. Many of these concerns stem from the unpredictable way in
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`which children drive these vehicles. For example, children often slam the direction shifters from
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`forward to reverse, or vice versa, while the motor is fully powered. This, and the on/off nature of
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`2
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`these motors, can lead te jerkiness and lurching. Whenthis is combined with other variables
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`such as driving on hills or heavy child occupants,there is even a rolloverthreat.
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`9,
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`Makingthe situation even more challengingis that the safety concerns need to be
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`addressed within very specific cost and design constraints. On the cost side, ride-ons are often
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`cost challenged because consumers will only spend a certain amount on these items, usually
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`topping out at a few hundred dollars. This factor prevents the ability to add costly, overly
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`complicated components that consumers will not pay for, and safety innovations muststill allow
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`the final vehicle to fit within these price ranges. One way to makethese safety innovations
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`acceptable with respect to cost is to incorporate them into existing drive systems. Total
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`redesigns are more costly.
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`10. Working within a more established drive system also helps address several ofthe
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`design constraints that are present. Children drive these vehicleserratically at times by, for
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`example, stomping and releasing the foot pedal forcefully when they jumpinto and out ofthe
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`vehicle. Asa result, these foot pedals tend to be basic, two-state, on-off buttons that are covered
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`by a plastic cap madeto look like a car’s gas pedal. The buttonis spring loadedto the off
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`position so that the motoris immediately disengaged whenthe child releases the pedalto, for
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`example, jump out of the vehicle. The direction shifters also present a challenge because they
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`must be easy enoughto operate for a child, but the child can often almost immediately switch
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`motor direction from forward to reverse.
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`11.
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`Prior to these patents, Mattel approached Innovation First and requested that we
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`make a speed controller for use with their Fisher-Price Power Wheels battery-powered ride-on
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`vehicles. One of the ideas that Mattel suggested was a proportional throttle pedal that would
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`allow the child to more gently and gradually increase the speed of the vehicle. We did notfeel
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`3
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`that to be a practical solution at the time. Children are still prone to stomp this type of pedal and
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`override the proportional nature of the pedal. These controls also added considerable costthat
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`made this approach impractical at the time.
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`12.
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`After considerable effort, it was determined that the best course would be to add
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`soft-start circuitry to the existing on/off drive system that would be able to first detect a change
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`in the signal created by the on/offthrottle pedal, and delay the time over which that change in
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`motor speed was implemented. That work is reflected in the 684 and °978 patents. We were
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`working with a throttle signal that only had twopossible levels, one correlating to “off” and one
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`to “on.” A two-state, digital signal like this is commonly referredto as a binary signal.
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`13.
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`[have reviewed Dynacraft’s proposed level of ordinary skill in the art, and feel
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`that it does not adequately include experience with the design concernsparticular to children’s
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`battery ride-ons.
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`I have designed many types of speed control systems, and the design and
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`engineering considerations relevant to children’s ride-ons are quite different in several respects.
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`Accordingly,I feel that at least a year designing these products is important in the person of
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`ordinary skill in this art. Children’s ride-ons have several technical and cost considerations that
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`are simply relevant to other types of vehicles. Manyof these considerations are discussed above
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`and set forth in the °684 patent.
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`14.
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`At the request of Mattel, I have reviewed U.S. Patent No. 4,634,941 to Klimo and
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`understand thatit is being used in an obviousness challenge to the 684 and °978 patents. One of
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`skills in the art at the time of the ’684 and ’978 patents would not have used the Klimopatent in
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`designing a battery-powered children’s ride-on for several reasons:
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`e
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`Thecircuitry of Klimois far too complicated and costly for inclusion in a
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`children’s ride-on in my opinion.
`Pp
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`4
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`e As described in the paragraphs above, the proportional controls that Klimo
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`requires would not in my opinion have been conducive to a child’s ride-on at
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`the time. If anything, Klimo reinforces andillustrates why our decision to go
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`away from these sorts of controls was the correct one, because this sort of
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`circuitry would not work and would not be affordable in the context of a
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`child’s battery-powered ride-on.
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`e
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`In my reading, the essence of the invention in Klimois a wheelchair that
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`employs particular circuttry that maintains wheelchair speed, particularly
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`under low-battery conditions. Such circuitry has no relevance to designing
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`children’s ride-ons, in part because low battery conditions, if anything, make
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`children’s ride-ons safer. While motor ramping is mentioned, motor ramping
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`in a general sense was known, What was not known, and whatthe ’684 and
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`978 patents generally relate to, was motor ramping underthe specific drive
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`system parameters most conducive to making a child’s ride-on better
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`performing and safer, and doing so in a cost effective manner.
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`I declare under penalty of perjury pursuant to 28 U.S.C. § 1746 that the foregoingis true
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`and correct.
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`Zolf TA 1&
`Date
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`Robert E. Mimlitch, III
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`5
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