Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Sun Electric › David E. Maxwell
DM

David E. Maxwell — 2 Patents

SESun Electric: 2 patents #8 of 46Top 20%
Cary, IL: #185 of 337 inventorsTop 55%
Illinois: #34,875 of 84,256 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David E. Maxwell has been granted 2 US patents while listed as an inventor at Sun Electric. All of these patents were granted in 1980. David E. Maxwell ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David E. Maxwell in Cary, IL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D257331 Engine exhaust emission analyzer James R. Shaffer, Lee Radtke 1980-10-14
D257013 Engine exhaust emission analyzer James R. Shaffer, Lee Radtke 1980-09-23

Nearby-Ranked Inventors

Leonard Mattheis2
Yiqi SHI2
Roberto DiCecco2
Haoneng Xu2
Emily Chew2
So Young Bae2
Julian Alexander Georgi2
Yoshihiro Asahara2
Assaf Ariel2