Growing community of inventors

Vancouver, WA, United States of America

David Keith

Average Co-Inventor Count = 3.49

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 22

David KeithMorgan T Johnson (4 patents)David KeithAaron Durbin (4 patents)David KeithTerry J Scheffer (1 patent)David KeithSteven Howard Linn (1 patent)David KeithHoward V Goetz (1 patent)David KeithJiuzhi Xue (1 patent)David KeithJames A Van Vechten (1 patent)David KeithLin Li (1 patent)David KeithJonathan A Sachs (1 patent)David KeithAlexander Parfenov (1 patent)David KeithStephen E Brice (1 patent)David KeithDavid Keith (5 patents)Morgan T JohnsonMorgan T Johnson (57 patents)Aaron DurbinAaron Durbin (12 patents)Terry J SchefferTerry J Scheffer (30 patents)Steven Howard LinnSteven Howard Linn (26 patents)Howard V GoetzHoward V Goetz (23 patents)Jiuzhi XueJiuzhi Xue (17 patents)James A Van VechtenJames A Van Vechten (6 patents)Lin LiLin Li (6 patents)Jonathan A SachsJonathan A Sachs (5 patents)Alexander ParfenovAlexander Parfenov (1 patent)Stephen E BriceStephen E Brice (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Advanced Inquiry Systems, Inc. (2 from 31 patents)

2. Other (1 from 832,843 patents)

3. Translarity, Inc. (1 from 10 patents)

4. Compound Photonics Limited (1 from 7 patents)


5 patents:

1. 10571489 - Wafer testing system and associated methods of use and manufacture

2. 9612259 - Wafer testing system and associated methods of use and manufacture

3. 8872533 - Wafer testing system and associated methods of use and manufacture

4. 8405414 - Wafer testing systems and associated methods of use and manufacture

5. 7990600 - Transmissive, optically addressed, photosensitive spatial light modulators and color display systems incorporating same

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as of
12/25/2025
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