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USPTO Patent Rankings Data through Sept 30, 2025
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Peter W. Richards — 5 Patents in 2018

Apple: 5 patents #405 of 3,694Top 15%
San Francisco, CA: #287 of 5,438 inventorsTop 6%
California: #3,458 of 60,411 inventorsTop 6%
Overall (2018): #25,366 of 503,207Top 6%
5 Patents 2018

Issued Patents 2018

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10162444 Force sensor incorporated into display Charley T. Ogata, Martin P. Grunthaner, Michael B. Wittenberg, Romain A. Teil, Steven P. Hotelling 2018-12-25
10139959 Self-calibration of force sensors and inertial compensation Christopher J. Butler, Martin P. Grunthaner, Romain A. Teil, Sinan Filiz 2018-11-27
9990087 Compensation for nonlinear variation of gap capacitance with displacement 2018-06-05
9983715 Force detection in touch devices using piezoelectric sensors Sinan Filiz, Brian Q. Huppi, Kai Wang, Vikram Garg 2018-05-29
9891759 Frustrated total internal reflection and capacitive sensing Martin P. Grunthaner, Romain A. Teil, Steven P. Hotelling 2018-02-13