Inventor · disambiguated record
Martin Steigerwald
Also filed as: STEIGERWALD MARTIN
46 granted patents·5 pending applications·408 citations·filing 1998–2019
98Inventor score
Files withSCHAEFFLER TECHNOLOGIES AG14SCHAEFFLER KG10INA SCHAEFFLER KG9SCHAEFFLER WAELZLAGER OHG6LINDE HYDRAULICS GMBH & CO KG4
Top patents by PatentIndex Score
51 records- 0195US7673598B2Electric camshaft adjusterSCHAEFFLER KG·Filed 2005·Granted Mar 9, 2010·24 cites·19 claims
- 0295US7506623B2Camshaft adjustment device for an internal combustion engineSCHAEFFLER KG·Filed 2006·Granted Mar 24, 2009·23 cites·11 claims
- 0395US6981478B2Electrically driven camshaft adjusterINA SCHAEFFLER KG·Filed 2005·Granted Jan 3, 2006·42 cites·26 claims
- 0489US6313726B1Electromagnet, particularly a proportional magnet for operating a hydraulic valveSCHAEFFLER WAELZLAGER OHG·Filed 1999·Granted Nov 6, 2001·57 cites·15 claims
- 0588US6743269B2Granules based on pyrogenically produced aluminium oxide, process for the production thereof and use thereofDEGUSSA·Filed 2002·Granted Jun 1, 2004·36 cites·19 claims
- 0687US8997702B2Actuator unit with reduced actuator pin frictionSCHAEFFLER TECHNOLOGIES AG·Filed 2013·Granted Apr 7, 2015·8 cites·6 claims
- 0787US8973544B2Construction of a hydraulic oil channel between a central valve and a volume accumulator of a camshaft adjusterSCHAEFFLER TECHNOLOGIES AG·Filed 2013·Granted Mar 10, 2015·5 cites·9 claims
- 0887US7032552B2Camshaft adjuster with an electrical driveINA SCHAEFFLER KG·Filed 2004·Granted Apr 25, 2006·22 cites·7 claims
- 0986US8776747B2Non-return valve of a camshaft adjusterSCHAEFFLER TECHNOLOGIES AG·Filed 2013·Granted Jul 15, 2014·5 cites·10 claims
- 1084US7597075B2Electrically driven camshaft adjusterSCHAEFFLER KG·Filed 2005·Granted Oct 6, 2009·9 cites·13 claims
- 1182US7047923B2Device for varying valve timing in an internal combustion engineINA SCHAEFFLER KG·Filed 2005·Granted May 23, 2006·8 cites·9 claims
- 1280US9206713B2Arrangement of a volume accumulatorSCHAEFFLER TECHNOLOGIES AG·Filed 2013·Granted Dec 8, 2015·3 cites·10 claims
- 1380US8863712B2Configuration of a tank connection in a camshaft adjuster with volume accumulatorSCHAEFFLER TECHNOLOGIES AG·Filed 2013·Granted Oct 21, 2014·3 cites·10 claims
- 1479US7308876B2Electrically driven camshaft adjusterSCHAEFFLER KG·Filed 2003·Granted Dec 18, 2007·22 cites·15 claims
- 1578US10156164B2Arrangement of a volume accumulator in a camshaft adjusterSCHAEFFLER TECHNOLOGIES AG·Filed 2015·Granted Dec 18, 2018·1 cites·13 claims
- 1678US9745972B2Drive train of a vehicleLINDE HYDRAULICS GMBH & CO KG·Filed 2013·Granted Aug 29, 2017·4 cites·20 claims
- 1778US6367434B1Solenoid valve, particularly a proportional hydraulic valveSCHAEFFLER WAELZLAGER OHG·Filed 2000·Granted Apr 9, 2002·19 cites·5 claims
- 1874US6651600B1Rotary piston adjusterINA SCHAEFFLER KG·Filed 2000·Granted Nov 25, 2003·14 cites·10 claims
- 1973US9709046B2Hydrostatic power unit as hydraulic starter of an internal combustion engineLINDE HYDRAULICS GMBH & CO KG·Filed 2013·Granted Jul 18, 2017·3 cites·17 claims
- 2071US7152561B2Control structure for the adjusting motor of an electric camshaft adjusterINA SCHAEFFLER KG·Filed 2006·Granted Dec 26, 2006·6 cites·20 claims
- 2171US7059285B2Control structure for the adjusting motor of an electric camshaft adjusterINA SCHAEFFLER KG·Filed 2004·Granted Jun 13, 2006·10 cites·7 claims
- 2269US8766562B2Adjustment device for adjusting a relative rotational angle position of two shafts and method for operating an actuator, particularly of such an adjustment deviceSCHAEFER JENS·Filed 2009·Granted Jul 1, 2014·5 cites·17 claims
- 2369US7541803B2Device and method for determining the angle of rotation between a camshaft and a crankshaft in an internal combustion engineSCHAFFLER KG·Filed 2004·Granted Jun 2, 2009·13 cites·4 claims
- 2469US7089897B2Electrically driven camshaft adjusterINA SCHAEFFLER KG·Filed 2004·Granted Aug 15, 2006·11 cites·15 claims
- 2567US8960140B2External volume accumulator configuration in a camshaft adjusterSCHAEFFLER TECHNOLOGIES AG·Filed 2013·Granted Feb 24, 2015·1 cites·10 claims
- 2667US8863713B2Camshaft adjuster having a non-return valveSCHAEFFLER TECHNOLOGIES AG·Filed 2013·Granted Oct 21, 2014·2 cites·4 claims
- 2766US7717072B2Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engineSCHAEFFLER KG·Filed 2008·Granted May 18, 2010·2 cites·2 claims
- 2864US6363897B2Device for changing the control timing of the gas exchange valves of an internal combustion engine, in particular a hydraulic camshaft adjustment device of the rotary piston typeSCHAEFFLER WAELZLAGER OHG·Filed 2000·Granted Apr 2, 2002·11 cites·3 claims
- 2963US9429170B2Drive train of a vehicleLINDE HYDRAULICS GMBH & CO KG·Filed 2013·Granted Aug 30, 2016·3 cites·20 claims
- 3061US8991344B2Filling of a volume accumulator in a camshaft adjusterSCHAEFFLER TECHNOLOGIES AG·Filed 2013·Granted Mar 31, 2015·1 cites·7 claims
- 3160US8844484B2Non-return valve of a camshaft adjusterSCHAEFFLER TECHNOLOGIES AG·Filed 2013·Granted Sep 30, 2014·1 cites·3 claims
- 3259US6427654B2Device for changing the control timing of the gas exchange valves of an internal combustion engine, in particular a hydraulic camshaft adjustment device of the rotary piston typeSCHAEFFLER WAELZLAGER OHG·Filed 2000·Granted Aug 6, 2002·8 cites·7 claims
- 3358US7703427B2Lifelong-lubricated camshaft drive for an internal combustion engineSCHAEFFLER KG·Filed 2005·Granted Apr 27, 2010·2 cites·8 claims
- 3457US11215088B2Module for a variable-lift valve drive of an internal combustion engineSCHAEFFLER TECHNOLOGIES AG·Filed 2019·Granted Jan 4, 2022·0 cites·19 claims
- 3557US9752469B2Sliding cam actuator having a sealSCHAEFFLER TECHNOLOGIES AG·Filed 2014·Granted Sep 5, 2017·0 cites·6 claims
- 3657US6769386B2Adjusting element for a rotary pistonINA SCHAEFFLER KG·Filed 2000·Granted Aug 3, 2004·7 cites·8 claims
- 3755US7275506B2Device for the variable setting of the control times of gas-exchange valves of an internal combustion engineSCHAEFFLER KG·Filed 2006·Granted Oct 2, 2007·1 cites·10 claims
- 3855US6374785B1Arrangement for rotary angle positioning of a camshaft relative to the crank shaft of an internal combustion engineSCHAEFFLER WAELZLAGER OHG·Filed 2000·Granted Apr 23, 2002·6 cites·13 claims
- 3953US11193396B2Module for a variable-stroke valve drive of an internal combustion engineSCHAEFFLER TECHNOLOGIES AG·Filed 2019·Granted Dec 7, 2021·0 cites·20 claims
- 4053US9659697B2Actuator with transmission elementSCHAEFFLER TECHNOLOGIES AG·Filed 2014·Granted May 23, 2017·0 cites·12 claims
- 4151US7882813B2Adjustment device for adjusting the relative rotational angle position of a camshaft in relation to a crankshaft of an internal combustion engineSCHAEFFLER TECHNOLOGIES GMBH·Filed 2008·Granted Feb 8, 2011·0 cites·1 claims
- 4248US8231361B2Hydrostatic pumpSTEIGERWALD MARTIN·Filed 2009·Granted Jul 31, 2012·0 cites·21 claims
- 4347US8231360B2Hydrostatic pump with a mechanical displacement volume controlSTEIGERWALD MARTIN·Filed 2009·Granted Jul 31, 2012·0 cites·10 claims
- 4447US6289862B1Locking unit for a device for modifying the timing of charge change valves in internal combustion enginesSCHAEFFLER WAELZLAGER OHG·Filed 1998·Granted Sep 18, 2001·10 cites·10 claims
- 4546US2006112921A1Camshaft adjuster with an electrical driveINA SCHAEFFLER KG·Filed 2006·Application pending·0 cites
- 4644US9429129B2Hydrostatic power unit to start an internal combustion engineLINDE HYDRAULICS GMBH & CO KG·Filed 2013·Granted Aug 30, 2016·0 cites·5 claims
- 4744US7650861B2Camshaft adjusterSCHAEFFLER KG·Filed 2005·Granted Jan 26, 2010·0 cites·17 claims
- 4842US2007194649A1Electric camshaft adjuster comprising a pancake motorSCHAEFFLER KG·Filed 2005·Application pending·0 cites
- 4942US2007031267A1Machine with a rotatable rotorLINDE AG·Filed 2006·Application pending·0 cites
- 5039US2007251473A1Camshaft AdjusterSCHAEFFLER KG·Filed 2005·Application pending·0 cites
Showing the top 50 of 51 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →