Inventor · disambiguated record
Walter H. Stone
Also filed as: STONE WALTER · STONE WALTER H
29 granted patents·2 pending applications·2,021 citations·filing 1980–2014
98Inventor score
Files withPARKER HANNIFIN CORP25JONES DAVID CHARLES1NELSON IND INC1PARKER HANNIFIN CUSTOMER SUPPO1PARKER INTANGIBLES INC1
Top patents by PatentIndex Score
31 records- 0197US6171491B1Fuel filter assembly with standpipe having valve elementPARKER HANNIFIN CORP·Filed 1999·Granted Jan 9, 2001·92 cites·35 claims
- 0296US6113781AFuel filter with dual flowPARKER HANNIFIN CORP·Filed 1998·Granted Sep 5, 2000·139 cites·24 claims
- 0396US5858227AFuel filter assembly with in-line valvePARKER HANNIFIN CORP·Filed 1997·Granted Jan 12, 1999·144 cites·29 claims
- 0496US5458767AFuel filter assembly with dual filter media and by-pass devicePARKER HANNIFIN CORP·Filed 1994·Granted Oct 17, 1995·126 cites·35 claims
- 0595US6053334AFuel filter with valve devicePARKER HANNIFIN CUSTOMER SUPPO·Filed 1997·Granted Apr 25, 2000·107 cites·11 claims
- 0695US4619764ARepelling-action filter unit and assemblyPARKER HANNIFIN CORP·Filed 1984·Granted Oct 28, 1986·95 cites·28 claims
- 0794US6068762AReusable oil filter assemblyPARKER HANNIFIN CORP·Filed 1996·Granted May 30, 2000·120 cites·46 claims
- 0894US5645718AReversible filter elementPARKER HANNIFIN CORP·Filed 1994·Granted Jul 8, 1997·121 cites·37 claims
- 0993US4502956AFilter assemblyRACOR INDUSTRIES INC·Filed 1984·Granted Mar 5, 1985·100 cites·29 claims
- 1092US4836923ACartridge and cover assembly for fluid filtersPARKER HANNIFIN CORP·Filed 1987·Granted Jun 6, 1989·81 cites·10 claims
- 1192US4740299AFilter assembly with threaded collection bowlPARKER HANNIFIN CORP·Filed 1986·Granted Apr 26, 1988·82 cites·13 claims
- 1292US4668393ASemipermeable baffle fuel filterPARKER HANNIFIN CORP·Filed 1985·Granted May 26, 1987·84 cites·25 claims
- 1390US5904844AFuel filter elementPARKER INTANGIBLES INC·Filed 1997·Granted May 18, 1999·68 cites·14 claims
- 1489US8034240B2Coalescing elementPARKER HANNIFIN CORP·Filed 2009·Granted Oct 11, 2011·21 cites·14 claims
- 1589US5643446AFuel filter and priming pumpPARKER HANNIFIN CORP·Filed 1993·Granted Jul 1, 1997·83 cites·30 claims
- 1689US4692245AFilter assembly with high pressure connection to collection bowlPARKER HANNIFIN CORP·Filed 1985·Granted Sep 8, 1987·73 cites·4 claims
- 1788US4997555AFuel filter assembly with heaterPARKER HANNIFIN CORP·Filed 1989·Granted Mar 5, 1991·80 cites·20 claims
- 1886US6174438B1Dual pass fuel filter assembly and element thereforPARKER HANNIFIN CORP·Filed 1999·Granted Jan 16, 2001·67 cites·21 claims
- 1986US5244571AFuel filter assembly with heaterPARKER HANNIFIN CORP·Filed 1991·Granted Sep 14, 1993·66 cites·15 claims
- 2084US4626348AEnd cap which will accommodate flow reversalPARKER HANNIFIN CORP·Filed 1984·Granted Dec 2, 1986·44 cites·23 claims
- 2181US9604167B2Multistage high capacity and depth coalescing media systemPARKER HANNIFIN CORP·Filed 2014·Granted Mar 28, 2017·4 cites·19 claims
- 2279US4565629AFilter assemblyPARKER HANNIFIN CORP·Filed 1984·Granted Jan 21, 1986·39 cites·20 claims
- 2379US4292179ASpin-on filter coalescer unit with flow reversing baffle assemblyNELSON IND INC·Filed 1980·Granted Sep 29, 1981·39 cites·10 claims
- 2476US5547572AFuel FilterPARKER HANNIFIN CORP·Filed 1994·Granted Aug 20, 1996·30 cites·24 claims
- 2568US5622623AFuel filter elementPARKER HANNIFIN CORP·Filed 1995·Granted Apr 22, 1997·26 cites·12 claims
- 2667US5362389AFuel filter assembly with reversible elementPARKER HANNIFIN CORP·Filed 1992·Granted Nov 8, 1994·28 cites·2 claims
- 2765US5042447AThermostatically controlled fuel heater and coolerPARKER HANNIFIN CORP·Filed 1990·Granted Aug 27, 1991·21 cites·26 claims
- 2864US5670042AFuel filter assembly with replaceable element having integral coverPARKER HANNIFIN CORP·Filed 1993·Granted Sep 23, 1997·27 cites·32 claims
- 2954US5036825ACompact high efficiency fuel heater with integral thermostatic controlPARKER HANNIFIN CORP·Filed 1990·Granted Aug 6, 1991·14 cites·8 claims
- 3045US2008105626A1Fuel filterJONES DAVID CHARLES·Filed 2006·Application pending·0 cites
- 3142US2001004061A1Fuel filter assembly with element having dual mediaFiled 2000·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →