Inventor · disambiguated record
Siegfried Zenker
Also filed as: ZENKER SIEGFRIED
21 granted patents·2 pending applications·267 citations·filing 1989–2013
95Inventor score
Top patents by PatentIndex Score
23 records- 0190US4981159AHydraulic control valve with pressure sensing meansDANFOSS AS·Filed 1989·Granted Jan 1, 1991·41 cites·11 claims
- 0288US8020583B2Hydraulic valve arrangementSAUER DANFOSS APS·Filed 2007·Granted Sep 20, 2011·15 cites·10 claims
- 0383US6220289B1Hydraulic valve arrangement with locking and floating functionDANFOSS FLUID POWER AS·Filed 2000·Granted Apr 24, 2001·23 cites·11 claims
- 0481US6854270B2Hydraulic valve systemSAUER DANFOSS APS·Filed 2003·Granted Feb 15, 2005·19 cites·8 claims
- 0580US6427721B1Hydraulic valve arrangement with locking functionSAUER DANFOSS NORDBERG AS·Filed 2000·Granted Aug 6, 2002·22 cites·10 claims
- 0678US7770596B2Hydraulic valve arrangementSAUER DANFOSS APS·Filed 2007·Granted Aug 10, 2010·8 cites·7 claims
- 0772US5000001ADual load-sensing passage adjustable relief valves for hydraulic motor controlDANFOSS AS·Filed 1989·Granted Mar 19, 1991·28 cites·12 claims
- 0871US6499505B2Hydraulic valve arrangementSAUER DANFOSS NORDBORG AS·Filed 2001·Granted Dec 31, 2002·13 cites·6 claims
- 0967US6971407B2Hydraulic valve arrangementSAUER DANFOSS APS·Filed 2003·Granted Dec 6, 2005·11 cites·16 claims
- 1066US5979498AThree-way or multi-way valveDANFOSS AS·Filed 1996·Granted Nov 9, 1999·19 cites·7 claims
- 1163US7975598B2Hydraulic valve arrangementSAUER DANFOSS APS·Filed 2007·Granted Jul 12, 2011·2 cites·10 claims
- 1258US4955194ADamping arrangement for damping the oscillations of valve controlled by pressure fluidDANFOSS AS·Filed 1989·Granted Sep 11, 1990·18 cites·6 claims
- 1357US5323687AHydraulic circuitDANFORS A S·Filed 1992·Granted Jun 28, 1994·17 cites·7 claims
- 1456US6712176B2Hydraulic dual circuit steering systemSAUER DANFOSS HOLDING AS·Filed 2000·Granted Mar 30, 2004·10 cites·11 claims
- 1555US6805161B2Hydraulic valve systemSAUER DANFOSS APS·Filed 2003·Granted Oct 19, 2004·5 cites·7 claims
- 1652US8444110B2Valve arrangementSMIDT VERNER·Filed 2010·Granted May 21, 2013·1 cites·6 claims
- 1749US2013306887A1Valve arrangementDANFOSS AS·Filed 2013·Application pending·0 cites
- 1845US8528460B2Hydraulic valve arrangementCHRISTENSEN THORKILD·Filed 2011·Granted Sep 10, 2013·0 cites·20 claims
- 1937US6490963B2Hydraulic line coupling arrangementSAUER DANFOSS NORDBORG AS·Filed 2001·Granted Dec 10, 2002·0 cites·9 claims
- 2037US2003205279A1Hydraulic valve systemSAUER DANFOSS NORDBORG AS·Filed 2003·Application pending·0 cites
- 2135US5947441ATwo-way seat-type valveDANFOSS AS·Filed 1996·Granted Sep 7, 1999·5 cites·12 claims
- 2232US5337778APressure control valveDANFOSS AS·Filed 1993·Granted Aug 16, 1994·2 cites·11 claims
- 2331US5647394AControl valveDANFOSS AS·Filed 1994·Granted Jul 15, 1997·8 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →