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

John P. David — 2 Patents

STStc.Unm: 2 patents #157 of 604Top 30%
TSThe University Of Sheffield: 1 patents #43 of 262Top 20%
Sheffield, GB: #193 of 655 inventorsTop 30%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John P. David has been granted 2 US patents while listed as an inventor at Stc.Unm. The first was granted in 2007 and the most recent in May 2016. John P. David ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John P. David in Sheffield, GB.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9354113 Impact ionization devices under dynamic electric fields Majeed M. Hayat, Sanjay Krishna, Luke F. Lester, David A. Ramirez, Payman Zarkesh-Ha 2016-05-31
7271405 Intersubband detector with avalanche multiplier region Sanjay Krishna, Majeed M. Hayat 2007-09-18