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USPTO Patent Rankings Data through Sept 30, 2025
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Albert E. Chamberlain — 1 Patent

SASears, Roebuck And: 1 patents #16 of 45Top 40%
Lake Bluff, IL: #123 of 198 inventorsTop 65%
Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,112,141 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4203681 Single element typewriter with error correction feature John C. Gall, Chester E. Ozimek 1980-05-20