Inventor · disambiguated record
Wilbur Dean Hutchens
Also filed as: HUTCHENS WILBUR D · HUTCHENS WILBUR DEAN
13 granted patents·3 pending applications·289 citations·filing 1988–2013
93Inventor score
Files withFISHER CONTROLS INT11FISHER CONTROLS INTERNAT1HUTCHENS WILBUR D1HUTCHENS WILBUR DEAN1LINSER MARK JOHN1
Top patents by PatentIndex Score
16 records- 0195US5131666AZero clearance anti-extrusion rings for containment of ptfe packingFISHER CONTROLS INT·Filed 1990·Granted Jul 21, 1992·103 cites·13 claims
- 0290US7296585B2Elliptical sealing surface for butterfly valveFISHER CONTROLS INT·Filed 2006·Granted Nov 20, 2007·16 cites·7 claims
- 0383US7416164B2Elliptical sealing surface for butterfly valveFISHER CONTROLS INT·Filed 2007·Granted Aug 26, 2008·9 cites·8 claims
- 0482US8857792B2Seal ring assemblies for use with rotary valvesPARRIE TIMOTHY RANDALL·Filed 2012·Granted Oct 14, 2014·17 cites·19 claims
- 0577US5535986ATorsionallly loaded fluid seals for rotary valvesFISHER CONTROLS INT·Filed 1995·Granted Jul 16, 1996·42 cites·10 claims
- 0674US8632053B2Movable valve apparatus having conditioned lubricating surfacesLINSER MARK JOHN·Filed 2010·Granted Jan 21, 2014·5 cites·13 claims
- 0774US5299812AGraphite packingFISHER CONTROLS INT·Filed 1992·Granted Apr 5, 1994·38 cites·20 claims
- 0873US8613423B2Methods and apparatus to load a valve packingHUTCHENS WILBUR DEAN·Filed 2009·Granted Dec 24, 2013·9 cites·15 claims
- 0963US7080820B2Elliptical sealing surface for butterfly valveFISHER CONTROLS INT·Filed 2002·Granted Jul 25, 2006·8 cites·30 claims
- 1060US5542681AGraphite packingFISHER CONTROLS INT·Filed 1996·Granted Aug 6, 1996·23 cites·6 claims
- 1158US4846213ADrain through ball valveFISHER CONTROLS INT·Filed 1988·Granted Jul 11, 1989·19 cites·15 claims
- 1253US2008272324A1Elliptical sealing surface for butterfly valveFISHER CONTROLS INT·Filed 2008·Application pending·0 cites
- 1351US9255650B2Movable valve apparatus having conditioned lubricating surfacesFISHER CONTROLS INT·Filed 2013·Granted Feb 9, 2016·0 cites·20 claims
- 1450US9182053B2Methods and apparatus to load a valve packingFISHER CONTROLS INT·Filed 2013·Granted Nov 10, 2015·0 cites·20 claims
- 1544US2007138429A1Flexible seals for process control valvesHUTCHENS WILBUR D·Filed 2005·Application pending·0 cites
- 1639US2005082766A1Low adhesion additiveFISHER CONTROLS INTERNAT·Filed 2003·Application pending·0 cites
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