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USPTO Patent Rankings Data through Dec 31, 2025
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Jane E. Ranchalis — 1 Patent

COCollagen: 1 patents #43 of 84Top 55%
Seattle, WA: #14,256 of 21,776 inventorsTop 70%
Washington: #48,569 of 76,902 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Jane E. Ranchalis has been granted 1 US patent while listed as an inventor at Collagen. All of these patents were granted in 1989. Jane E. Ranchalis ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Jane E. Ranchalis in Seattle, WA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4816442 Method of inhibiting tumor growth sensitive to CIF-.beta.treatment John M. McPherson, Danile R. Twardzik, George J. Todaro, Karl A. Piez 1989-03-28 $1,402,000