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

Stephen G. Spanton — 3 Patents

Abbott: 3 patents #2,303 of 5,509Top 45%
Grayslake, IL: #213 of 548 inventorsTop 40%
Illinois: #26,899 of 84,256 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Stephen G. Spanton has been granted 3 US patents while listed as an inventor at Abbott. The first was granted in 1995 and the most recent in September 2003. Stephen G. Spanton ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Stephen G. Spanton in Grayslake, IL, US.

Patents per Year

Patents granted per year, 1995 to 2003Bar chart with a peak of 1 patents in 1995.peak 11995: 1 patents19951999: 1 patents19992003: 1 patents2003

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6627743 6-O-methylerythromycin A crystal form III Jih-Hua Liu, Rodger F. Henry, David A. Riley 2003-09-30 $55,399,000
5945405 Crystal form O of clarithromycin Rodger F. Henry, David A. Riley, Jih-Hua Liu 1999-08-31 $103,436,000
5412095 Terazosin monohydrochloride and processes and intermediate for its production James Alexander MORLEY, John F. Bauer, Ramesh F. Patel, Rodger E. Henry 1995-05-02 $41,318,000