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USPTO Patent Rankings Data through Dec 31, 2025
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Charles K. Taft — 6 Patents

ARAro: 1 patents #29 of 92Top 35%
FLFoseco International Limited: 1 patents #68 of 196Top 35%
UHUniversity Of New Hempshire: 1 patents #49 of 138Top 40%
PAParker-Hannifin: 1 patents #1,024 of 1,664Top 65%
Durham, NH: #25 of 153 inventorsTop 20%
New Hampshire: #2,457 of 12,181 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Charles K. Taft has been granted 6 US patents while listed as an inventor at Aro. The first was granted in 1981 and the most recent in November 2005. Charles K. Taft ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Charles K. Taft in Durham, NH, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6968577 Spill resistant portable urinal 2005-11-29
5217929 Refractory composition 1993-06-08
4809730 Electrofluid converters Timothy S. Burke 1989-03-07
4772815 Variable refluctance position transducer Timothy J. Harned, Steven R. Huard, David M. Lancisi, Joseph S. Pavlat 1988-09-20 $5,915,000
4441526 Analog electro-fluidic signal transducer Benjamin M Herrick 1984-04-10
4306589 Low power solenoid-operated air valve with magnetic latching Timothy J. Harned, Wilbert G. Kautz 1981-12-22 $219,000