Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert E. Roehrs — 9 Patents

ALAlcon Laboratories: 8 patents #30 of 314Top 10%
Fort Worth, TX: #232 of 2,247 inventorsTop 15%
Texas: #16,980 of 125,132 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Robert E. Roehrs has been granted 9 US patents while listed as an inventor at Alcon Laboratories. The first was granted in 1981 and the most recent in May 1993. Robert E. Roehrs ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Robert E. Roehrs in Fort Worth, TX, US.

Patents per Year

Patents granted per year, 1981 to 1993Bar chart with a peak of 2 patents in 1985.peak 21981: 1 patents19811983: 1 patents19831984: 1 patents19841985: 2 patents19851989: 1 patents19891990: 1 patents19901991: 1 patents19911993: 1 patents1993

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5209927 Ophthalmic solution Philip D. Gressel, Robert G. Harris 1993-05-11
5075104 Ophthalmic carboxy vinyl polymer gel for dry eye syndrome Philip D. Gressel 1991-12-24
4966773 Topical ophthalmic compositions containing microfine retinoid particles Philip D. Gressel, John L. Ubels, Henry F. Edelhauser 1990-10-30
4826871 Topical ophthalmic compositions containing one or more retinoids Philip D. Gressel, John L. Ubels, Henry F. Edelhauser 1989-05-02
4559343 Nonirritating aqueous ophthalmic compositions comfort formulation for ocular therapeutic agents Wesley Wehsin Han 1985-12-17
4550022 Tissue irrigating solution Michael E. Garabedian 1985-10-29
4443432 Ophthmalic irrigating solution Michael E. Garabedian 1984-04-17
4407792 Sustained release ophthalmic drug dosage Ronald D. Schoenwald 1983-10-04
4271143 Sustained release ophthalmic drug dosage Ronald D. Schoenwald 1981-06-02