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

Robert C. Friedmann — 3 Patents

Pfizer: 2 patents #2,085 of 5,153Top 45%
Old Saybrook, CT: #39 of 132 inventorsTop 30%
Connecticut: #12,369 of 34,797 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Robert C. Friedmann has been granted 3 US patents while listed as an inventor at Pfizer. The first was granted in 1990 and the most recent in June 1991. Robert C. Friedmann ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert C. Friedmann in Old Saybrook, CT, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5026845 1,4-diazabicyclo[3.2.2.]nonane and intermediates for the preparation thereof John W. Lackey, Brian Thomas O'Neill 1991-06-25
4987231 Optical resolution method for 3R-(3-carboxybenzyl)-6-(5-fluoro-2-benzothiazolyl)methoxy-4R-chromanol George J. Quallich 1991-01-22 $38,316,000
4895943 Preparation of 1,4-diazabicyclo(3.2.2)nonane John W. Lackey, Brian Thomas O'Neill 1990-01-23 $9,357,000