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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Zimlich — 2 Patents in 2021

WIWispry: 2 patents #4 of 19Top 25%
San Diego, CA: #998 of 4,495 inventorsTop 25%
California: #13,721 of 66,859 inventorsTop 25%
Overall (2021): #167,377 of 548,734Top 35%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11025162 Charge pump systems, devices, and methods Vincent Cheung 2021-06-01
10903740 Charge pump systems, devices, and methods Arthur S. Morris, III, Vincent Cheung 2021-01-26