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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
GK

Gerald W. Karr — 7 Patents

BEBeloit: 7 patents #22 of 198Top 15%
South Beloit, IL: #9 of 57 inventorsTop 20%
Illinois: #13,121 of 84,256 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Gerald W. Karr has been granted 7 US patents while listed as an inventor at Beloit. The first was granted in 1981 and the most recent in February 1985. Gerald W. Karr ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Gerald W. Karr in South Beloit, IL, US.

Patents per Year

Patents granted per year, 1981 to 1985Bar chart with a peak of 4 patents in 1984.peak 41981: 1 patents19811982: 1 patents19821984: 4 patents19841985: 1 patents1985

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4501197 Supercalender edge nip relieving Gernot Muller 1985-02-26 $1,203,000
4465244 Expanding core chuck 1984-08-14 $660,000
4445646 Apparatus and method for starting successive leading ends on travelling web in a winder George H. Wong 1984-05-01 $1,233,000
4444362 Apparatus and method for starting successive leading ends on travelling web in a winder 1984-04-24 $499,000
4434949 Winder rider roll control 1984-03-06 $1,139,000
4325518 Reel spool pneumatic core clamp Robert E. Page 1982-04-20 $441,000
4303462 Roll wrapper header apparatus 1981-12-01 $1,633,000