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USPTO Patent Rankings Data through Dec 31, 2025
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Robert J. Sysko — 5 Patents

Pfizer: 5 patents #1,040 of 5,153Top 25%
East Lyme, CT: #44 of 183 inventorsTop 25%
Connecticut: #8,579 of 34,797 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Robert J. Sysko has been granted 5 US patents while listed as an inventor at Pfizer. The first was granted in 1981 and the most recent in September 1993. Robert J. Sysko ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Robert J. Sysko in East Lyme, CT, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5248699 Sertraline polymorph Douglas J. M. Allen 1993-09-28 $27,301,000
4940791 Process for the production of phthalazineacetic acid ester derivatives and a novel hydrazine containing intermediate Terry G. Sinay 1990-07-10 $12,133,000
4904782 Process for the production of phthalazineacetic acid ester derivatives and a novel intermediate Terry G. Sinay 1990-02-27 $16,583,000
4360463 Pure 6,6-diiodopenicillanic acid and process for its preparation 1982-11-23 $14,864,000
4254250 Amine polymers having dewatering activity Raymond C. Glowaky, Steven R. Kurowsky 1981-03-03 $7,115,000