Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RK

R. Gilbert Kaufman — 8 Patents

AMAmoco: 3 patents #256 of 1,251Top 25%
S(Standard Oil Company (Indiana): 2 patents #142 of 576Top 25%
E-E-Systems: 1 patents #90 of 229Top 40%
Chicago, IL: #1,568 of 13,327 inventorsTop 15%
Illinois: #11,418 of 84,256 inventorsTop 15%
Overall (All Time): #667,453 of 4,157,543Top 20%
8 Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
5993074 High speed electro-optical signal translator Frank A. Chambers, Melvin C. Schmidt, Michael G. Ressl, John G. Kwasegrock 1999-11-30
5644668 High speed electro-optical signal translator Frank A. Chambers, Melvin C. Schmidt, Michael G. Ressl, John G. Kwasegrock 1997-07-01
5422972 Techniques for illuminating internal surfaces of a high speed electro-optical signal translator Frank A. Chambers, Melvin C. Schmidt, Michael G. Ressl, John G. Kwasegrock 1995-06-06
5375182 Techniques for planar alignment of high speed electro-optical signal translator components Frank A. Chambers 1994-12-20
5276756 High speed electro-optical signal translator Frank A. Chambers, Melvin C. Schmidt, Michael G. Ressl, John G. Kwasegrock 1994-01-04
4755048 Optical analysis of impurity absorptions 1988-07-05
4582542 Ohmic copper-cuprous oxide contacts 1986-04-15
4564398 Optimized photovoltaic effect 1986-01-14