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

Richard Spring — 2 Patents

SCSchering: 1 patents #1,469 of 2,442Top 65%
Tampa, FL: #1,066 of 2,931 inventorsTop 40%
Florida: #22,549 of 67,251 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Richard Spring has been granted 2 US patents while listed as an inventor at Schering. The first was granted in 1991 and the most recent in September 2008. Richard Spring ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Richard Spring in Tampa, FL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7423149 Substituted n-aryl amidines as selective D1 dopamine receptor antagonists for the treatment of obesity and CNS disorders Duane A. Burnett, Wen-Lian Wu, Martin S. Domalski, Mary Ann Caplen, Jean E. Lachowicz 2008-09-09 $72,239,000
5014478 Panels and panel interlocking means 1991-05-14