Inventor · disambiguated record
Walter Speil
Also filed as: SPEIL WALTER
62 granted patents·712 citations·filing 1981–2003
99Inventor score
Files withSCHAEFFLER WAELZLAGER KG25SCHAEFFLER WAELZLAGER OHG19MOTOMAK11INA SCHAEFFLER KG2INA WALZLAGER KG1
Top patents by PatentIndex Score
62 records- 0193US5875748ADevice and method for operating a valve drive of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 1998·Granted Mar 2, 1999·54 cites·16 claims
- 0291US5261361AAssembly for simultaneously actuating two valves of an internal combustion engineSCHAEFFLER WAELZLAGER KG·Filed 1991·Granted Nov 16, 1993·43 cites·9 claims
- 0389US5782216AEngageable tappet for a valve drive of an internal combustion engineSCHAEFFLER WAELZLAGER KG·Filed 1995·Granted Jul 21, 1998·63 cites·44 claims
- 0487US5669342ADevice for simultaneous actuation of at least two gas exchange valvesSCHAEFFLER WAELZLAGER KG·Filed 1996·Granted Sep 23, 1997·35 cites·20 claims
- 0586US4465038AValve tappetMOTOMAK·Filed 1981·Granted Aug 14, 1984·30 cites·1 claims
- 0683US4747376AHydraulic valve clearance compensation elementSCHAEFFLER WAELZLAGER KG·Filed 1987·Granted May 31, 1988·30 cites·11 claims
- 0782US6513472B2Valve train of an internal combustion engineINA SCHAEFFLER KG·Filed 2002·Granted Feb 4, 2003·19 cites·9 claims
- 0881US5832884ADevice and method for operating a valve drive of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 1995·Granted Nov 10, 1998·32 cites·10 claims
- 0973US4437439AValve tappetMOTOMAK·Filed 1982·Granted Mar 20, 1984·20 cites·11 claims
- 1070US4856468ABall-and-socket jointSCHAEFFLER WAELZLAGER KG·Filed 1988·Granted Aug 15, 1989·21 cites·8 claims
- 1167US6220213B1Rocker arm installed in a cylinder head of a valve train of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 2000·Granted Apr 24, 2001·10 cites·11 claims
- 1264US4876994AHydraulic play compensation elementSCHAEFFLER WAELZLAGER KG·Filed 1989·Granted Oct 31, 1989·18 cites·10 claims
- 1363US4570582AInner element for a hydraulic valve play compensating elementMOTOMAK MOTORENBAU MACHINEN UN·Filed 1984·Granted Feb 18, 1986·20 cites·4 claims
- 1462US5975038APushrod for operating the valve gear mechanism of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 1996·Granted Nov 2, 1999·18 cites·7 claims
- 1562US4579094ACup-shaped casing for a hydraulic tappetMOTOMAK·Filed 1985·Granted Apr 1, 1986·18 cites·4 claims
- 1661US5622146AFinger lever for actuating gas exchange valvesSCHAEFFLER WAELZLAGER KG·Filed 1994·Granted Apr 22, 1997·18 cites·8 claims
- 1760US6138626AOperating lever for a valve train of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 1997·Granted Oct 31, 2000·16 cites·12 claims
- 1858US5954020ACup-shaped tappetSCHAEFFLER WAELZLAGER KG·Filed 1994·Granted Sep 21, 1999·19 cites·14 claims
- 1958US5501187AConnection of a guide rail of a valve actuation device with a camshaft bearingSCHAEFFLER WAELZLAGER KG·Filed 1995·Granted Mar 26, 1996·16 cites·5 claims
- 2058US4708103AHydraulic valve clearance compensation deviceMOTOMAK·Filed 1986·Granted Nov 24, 1987·15 cites·6 claims
- 2154US5503121AOil supply for a valve actuation deviceSCHAEFFLER WAELZLAGER KG·Filed 1995·Granted Apr 2, 1996·16 cites·6 claims
- 2253US4729350AHydraulic valve clearance compensation apparatus for internal combustion enginesMOTOMAK·Filed 1987·Granted Mar 8, 1988·13 cites·9 claims
- 2350US6119644AHydraulic clearance compensation elementSCHAEFFLER WAELZLAGER OHG·Filed 2000·Granted Sep 19, 2000·4 cites·14 claims
- 2449US5746165AValve drive of an internal combustion engineSCHAEFFLER WAELZLAGER KG·Filed 1995·Granted May 5, 1998·11 cites·10 claims
- 2548US5979385AValve tappet actuated by the cam of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 1996·Granted Nov 9, 1999·9 cites·8 claims
- 2648US4745889AHydraulic valve tappetMOTOMAK·Filed 1986·Granted May 24, 1988·11 cites·5 claims
- 2747US6470842B2Lever-type cam followerSCHAEFFLER WAELZLAGER OHG·Filed 2001·Granted Oct 29, 2002·2 cites·11 claims
- 2845US4924825AOuter guide means for a valve tappetMOTOMAK·Filed 1989·Granted May 15, 1990·9 cites·14 claims
- 2943US5860399AHydraulic clearance compensation elementSCHAEFFLER WAELZLAGER KG·Filed 1997·Granted Jan 19, 1999·8 cites·5 claims
- 3043US4864982AInner element for an hydraulic valve play compensation elementMOTOMAK·Filed 1984·Granted Sep 12, 1989·7 cites·2 claims
- 3142US7059287B2Switched cam follower or switched support element of a valve gear of an internal combustion engineINA SCHAEFFLER KG·Filed 2003·Granted Jun 13, 2006·2 cites·5 claims
- 3242US5890463ATappet with a hydraulic valve clearance compensation elementSCHAEFFLER WAELZLAGER KG·Filed 1997·Granted Apr 6, 1999·6 cites·5 claims
- 3341US6032631ATappet for a valve train of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 1998·Granted Mar 7, 2000·6 cites·11 claims
- 3440US6192846B1Housing for an engageable and disengageable bucket tappetSCHAEFFLER WAELZLAGER OHG·Filed 1998·Granted Feb 27, 2001·6 cites·3 claims
- 3539US6065435AValve tappet actuated by a cam of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 1999·Granted May 23, 2000·4 cites·3 claims
- 3639US5727509ACam follower in the form of a tappet or a lever having a hydraulic valve clearance compensation elementSCHAEFFLER WAELZLAGER KG·Filed 1995·Granted Mar 17, 1998·5 cites·13 claims
- 3739US4686947AHydraulic cup-shaped valve tappetsMOTOMAK·Filed 1986·Granted Aug 18, 1987·6 cites·8 claims
- 3837US5894822ASupport element for a finger lever of a valve drive of an internal combustion engineFiled 1996·Granted Apr 20, 1999·4 cites·12 claims
- 3937US5078657ABelt tensionerROUSSEL UCLAF·Filed 1990·Granted Jan 7, 1992·5 cites·9 claims
- 4037US4716867AInner element for a hydraulic value compensation elementMOTOMAK·Filed 1987·Granted Jan 5, 1988·5 cites·1 claims
- 4136US6341587B1Lever-type cam follower for a valve train of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 2000·Granted Jan 29, 2002·1 cites·9 claims
- 4236US5778839AFinger lever for actuating a gas exchange valveSCHAEFFLER WAELZLAGER KG·Filed 1997·Granted Jul 14, 1998·5 cites·9 claims
- 4335US5884595AMechanical cup pushrod for an internal combustion engine's valve gearSCHAEFFLER WAELZLAGER OHG·Filed 1996·Granted Mar 23, 1999·4 cites·16 claims
- 4435US5586528ATappet for the valve drive of an internal combustion engineSCHAEFFLER WAELZLAGER KG·Filed 1996·Granted Dec 24, 1996·4 cites·1 claims
- 4534US5595149AMethod of first filling of a hydraulic valve actuating deviceSCHAEFFLER WAELZLAGER KG·Filed 1996·Granted Jan 21, 1997·3 cites·13 claims
- 4634US5117787ASelf-adjusting hydraulic valve tappetSCHAEFFLER WAELZLAGER KG·Filed 1991·Granted Jun 2, 1992·5 cites·8 claims
- 4733US6651329B2Method of making a lever-type cam followerSCHAEFFLER WAELZLAGER OHG·Filed 2001·Granted Nov 25, 2003·0 cites·6 claims
- 4833US5365897AMechanical valve tappetSCHAEFFLER WAELZLAGER KG·Filed 1993·Granted Nov 22, 1994·5 cites·9 claims
- 4933US5267538AMechanical valve tappet for an internal combustion engineSCHAEFFLER WAELZLAGER KG·Filed 1992·Granted Dec 7, 1993·5 cites·11 claims
- 5032US6318322B1Valve drive of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 1999·Granted Nov 20, 2001·2 cites·11 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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