SZ

Siegfried Zenker

DA Danfoss A/S: 8 patents #34 of 704Top 5%
SA Sauer-Danfoss Aps: 7 patents #4 of 72Top 6%
SA Sauer-Danfoss (Nordborg) A/S: 2 patents #1 of 18Top 6%
DA Danfoss Fluid Power A/S: 1 patents #3 of 16Top 20%
SA Sauer-Danfoss Holding A/S: 1 patents #17 of 39Top 45%
Overall (All Time): #210,506 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8528460 Hydraulic valve arrangement Thorkild Christensen, Svend E. Thomsen 2013-09-10
8444110 Valve arrangement Verner Smidt, Lasse Nicolai Langmaack, Erik Haugaard, Carsten Christensen, Welm Friedrichsen 2013-05-21
8020583 Hydraulic valve arrangement Thorkild Christensen 2011-09-20
7975598 Hydraulic valve arrangement Thorkild Christensen, Svend E. Thomsen 2011-07-12
7770596 Hydraulic valve arrangement Thorkild Christensen 2010-08-10
6971407 Hydraulic valve arrangement Thorkild Christensen, Carsten Christensen 2005-12-06
6854270 Hydraulic valve system Thorkild Christensen 2005-02-15
6805161 Hydraulic valve system Thorkild Christensen 2004-10-19
6712176 Hydraulic dual circuit steering system Carsten Christensen 2004-03-30
6499505 Hydraulic valve arrangement Thorkild Christensen, Carl Christian Dixen, Carsten Christensen 2002-12-31
6490963 Hydraulic line coupling arrangement Poul Ennemark 2002-12-10
6427721 Hydraulic valve arrangement with locking function Carsten Christensen, Thorkild Christensen 2002-08-06
6220289 Hydraulic valve arrangement with locking and floating function Carsten Christensen, Thorkild Christensen 2001-04-24
5979498 Three-way or multi-way valve Jens J.o slashed.rgen Nielsen, Erik Plauborg 1999-11-09
5947441 Two-way seat-type valve Jens J.o slashed.rgen Nielsen, Erik Plauborg 1999-09-07
5647394 Control valve Anders Valbj.o slashed.rn, Erik Plauborg 1997-07-15
5337778 Pressure control valve Svend E. Thomsen, Thorkild Christensen 1994-08-16
5323687 Hydraulic circuit Helge D. Jorgensen, Thorkild Christensen 1994-06-28
5000001 Dual load-sensing passage adjustable relief valves for hydraulic motor control Thorkild Christensen, Harry S. Nissen, Carsten Christensen, Svend E. Thomsen 1991-03-19
4981159 Hydraulic control valve with pressure sensing means Thorkild Christensen, Svend E. Thomsen 1991-01-01
4955194 Damping arrangement for damping the oscillations of valve controlled by pressure fluid Thorkild Christensen, Svend E. Thomsen 1990-09-11