Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DM

David A. Maxwell — 2 Patents

SISignetics: 2 patents #22 of 93Top 25%
San Jose, CA: #17,797 of 32,062 inventorsTop 60%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David A. Maxwell has been granted 2 US patents while listed as an inventor at Signetics. The first was granted in 1980 and the most recent in May 1981. David A. Maxwell ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David A. Maxwell in San Jose, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4268348 Method for making semiconductor structure David F. Allison 1981-05-19 $615,000
4193836 Method for making semiconductor structure Albert P. Youmans, David F. Allison 1980-03-18 $579,000