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USPTO Patent Rankings Data through Sept 30, 2025
RK

Rex A. Kaufman

MSMajco Building Specialties: 1 patents #1 of 2Top 50%
Roanoke, IN: #1 of 2 inventorsTop 50%
Indiana: #304 of 1,469 inventorsTop 25%
Overall (1989): #66,868 of 140,708Top 50%
1 Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4878481 Fireplace having chimney construction including cold air barrier Terry G. Schoeff 1989-11-07