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USPTO Patent Rankings Data through Dec 31, 2025
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Bruce E. Renslow — 10 Patents

HRHanson Research: 8 patents #1 of 9Top 15%
Castaic, CA: #16 of 130 inventorsTop 15%
California: #61,378 of 386,348 inventorsTop 20%
Overall (All Time): #481,000 of 4,157,543Top 15%
10 Patents All Time
Bruce E. Renslow has been granted 10 US patents while listed as an inventor at Hanson Research. The first was granted in 1997 and the most recent in December 2010. Bruce E. Renslow ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Bruce E. Renslow in Castaic, CA, US.

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
7850919 Liquid sample collector interface 2010-12-14
6821419 Diffusion cell with quick release clamp Royal A. Hanson, Steven W. Shaw, Jerome S. Elkins 2004-11-23
6422098 Dissolution sampling apparatus Royal A. Hanson, Guillermo E. Meneses, Steven W. Shaw, Robinson C. Russell 2002-07-23
6076410 Liquid sample collector and liquid return apparatus 2000-06-20
D424458 Housing for a dissolution sampling apparatus Royal A. Hanson, Robson L. Splane, Jr., Guillermo E. Meneses 2000-05-09
6006777 Media dispensing apparatus 1999-12-28
5682001 Dissolution test apparatus with counterbalance system Royal A. Hanson 1997-10-28
5639953 Alignment verification device for a rotating shaft 1997-06-17
5639974 Dissolution test apparatus Royal A. Hanson 1997-06-17
D377152 Dissolution test apparatus Royal A. Hanson, Guillermo E. Meneses, Sean M. Montgomery, Robson L. Splane, Jr. 1997-01-07