Assignee
PFEIFFER VACUUM GMBH
DE·58 granted patents·19 pending applications·388 citations·filing 1997–2023
Top patents by PatentIndex Score
77 records- 0187US5893702AGas friction pumpPFEIFFER VACUUM GMBH·Filed 1997·Granted Apr 13, 1999·81 cites·11 claims
- 0282US9745978B2Housing for a rotary vane pumpPFEIFFER VACUUM GMBH·Filed 2014·Granted Aug 29, 2017·4 cites·5 claims
- 0380US7828512B2Arrangement for supporting a shaft of a vacuum pump and a vacuum pump with such an arrangementPFEIFFER VACUUM GMBH·Filed 2007·Granted Nov 9, 2010·16 cites·8 claims
- 0479US11078916B2Vacuum pumpPFEIFFER VACUUM GMBH·Filed 2018·Granted Aug 3, 2021·2 cites·13 claims
- 0579US6446651B1Multi-chamber vacuum system and a method of operating the samePFEIFFER VACUUM GMBH·Filed 2000·Granted Sep 10, 2002·36 cites·2 claims
- 0678US9887604B2Apparatus for kinetic energy storage having a flywheel with pump-active surfacesPFEIFFER VACUUM GMBH·Filed 2013·Granted Feb 6, 2018·4 cites·5 claims
- 0776US9822799B2Arrangement with a vacuum pump and method of compensating magnetic field produced by magnetic interference field of at least one vacuum pump componentPFEIFFER VACUUM GMBH·Filed 2014·Granted Nov 21, 2017·2 cites·18 claims
- 0873US6461123B1Turbomolecular pumpPFEIFFER VACUUM GMBH·Filed 2000·Granted Oct 8, 2002·19 cites·4 claims
- 0973US6368082B1Vacuum pump with rotor supporting gas bearingsPFEIFFER VACUUM GMBH·Filed 2000·Granted Apr 9, 2002·14 cites·7 claims
- 1070US9869319B2Vacuum pumpPFEIFFER VACUUM GMBH·Filed 2014·Granted Jan 16, 2018·4 cites·20 claims
- 1170US6030181AVacuum apparatus and a method of controlling a suction speed thereofPFEIFFER VACUUM GMBH·Filed 1998·Granted Feb 29, 2000·22 cites·5 claims
- 1269US7854601B2Lubricant-tight vane rotary vacuum pumpPFEIFFER VACUUM GMBH·Filed 2007·Granted Dec 21, 2010·3 cites·4 claims
- 1367US9970444B2Adapter for vacuum pumps and associated pumping devicePFEIFFER VACUUM GMBH·Filed 2012·Granted May 15, 2018·3 cites·18 claims
- 1467US2023383750A1Vacuum pump, scroll pump, and manufacturing method for suchPFEIFFER VACUUM GMBH·Filed 2023·Application pending·0 cites
- 1564US7959423B2Vacuum pump with a lubricant pumpPFEIFFER VACUUM GMBH·Filed 2008·Granted Jun 14, 2011·3 cites·7 claims
- 1663US9695967B2Connection apparatusPFEIFFER VACUUM GMBH·Filed 2014·Granted Jul 4, 2017·5 cites·18 claims
- 1762US7575372B2Device for contactless measurement of rotor temperaturesPFEIFFER VACUUM GMBH·Filed 2006·Granted Aug 18, 2009·4 cites·5 claims
- 1862US7367429B2Device for feeding oil to a bearing seat of a rotatable shaftPFEIFFER VACUUM GMBH·Filed 2004·Granted May 6, 2008·8 cites·4 claims
- 1961US9453514B2Vacuum pump having fastening element for securing rotor part to rotor shaft and deformed safety element projecting in axial direction for preventing relative rotation between the rotor part and rotor shaftPFEIFFER VACUUM GMBH·Filed 2013·Granted Sep 27, 2016·3 cites·9 claims
- 2061US7378815B2Speed monitoring devicePFEIFFER VACUUM GMBH·Filed 2006·Granted May 27, 2008·4 cites·5 claims
- 2160US11773849B2Vacuum pump, scroll pump, and manufacturing method for suchPFEIFFER VACUUM GMBH·Filed 2020·Granted Oct 3, 2023·0 cites·20 claims
- 2260US6409477B1Vacuum pumpPFEIFFER VACUUM GMBH·Filed 2000·Granted Jun 25, 2002·14 cites·6 claims
- 2359US7669516B2Cylinder-piston arrangementPFEIFFER VACUUM GMBH·Filed 2007·Granted Mar 2, 2010·2 cites·4 claims
- 2459US7226276B2Multi-stage reciprocating vacuum pump and method of operating the samePFEIFFER VACUUM GMBH·Filed 2003·Granted Jun 5, 2007·7 cites·3 claims
- 2558US6658920B2Leak detector pumpPFEIFFER VACUUM GMBH·Filed 2001·Granted Dec 9, 2003·10 cites·4 claims
- 2657US7059828B2Gas friction pumpPFEIFFER VACUUM GMBH·Filed 2004·Granted Jun 13, 2006·10 cites·6 claims
- 2757US6464451B1Vacuum pumpPFEIFFER VACUUM GMBH·Filed 2000·Granted Oct 15, 2002·10 cites·4 claims
- 2856US6638010B2Gas friction pumpPFEIFFER VACUUM GMBH·Filed 2001·Granted Oct 28, 2003·8 cites·5 claims
- 2955US11542935B2Gas recirculation device and system having such a devicePFEIFFER VACUUM GMBH·Filed 2020·Granted Jan 3, 2023·0 cites·15 claims
- 3055US6561755B1Turbomolecular pumpPFEIFFER VACUUM GMBH·Filed 2000·Granted May 13, 2003·9 cites·3 claims
- 3154US6524060B2Gas friction pumpPFEIFFER VACUUM GMBH·Filed 2001·Granted Feb 25, 2003·7 cites·5 claims
- 3252US2010021324A1Vacuum pumpPFEIFFER VACUUM GMBH·Filed 2009·Application pending·0 cites
- 3351US9957974B2Vacuum pumpPFEIFFER VACUUM GMBH·Filed 2014·Granted May 1, 2018·0 cites·12 claims
- 3451US6454525B2Turbomolecular pumpPFEIFFER VACUUM GMBH·Filed 2001·Granted Sep 24, 2002·7 cites·4 claims
- 3550US10132339B2Ionizing pump stagePFEIFFER VACUUM GMBH·Filed 2013·Granted Nov 20, 2018·0 cites·14 claims
- 3650US6824357B2Turbomolecular pumpPFEIFFER VACUUM GMBH·Filed 2002·Granted Nov 30, 2004·7 cites·11 claims
- 3750US2015167679A1Vacuum pumpPFEIFFER VACUUM GMBH·Filed 2014·Application pending·0 cites
- 3849US11480181B2Vacuum system with a multi-stage and multi-inlet vacuum pump with a directional element separating pump stagesPFEIFFER VACUUM GMBH·Filed 2020·Granted Oct 25, 2022·0 cites·18 claims
- 3949US10563648B2Membrane vacuum pumpPFEIFFER VACUUM GMBH·Filed 2016·Granted Feb 18, 2020·0 cites·27 claims
- 4049US6071085AGas ballast system for a multi-stage positive displacement pumpPFEIFFER VACUUM GMBH·Filed 1999·Granted Jun 6, 2000·13 cites·4 claims
- 4149US2014017097A1Pump module and positive displacement pumpPFEIFFER VACUUM GMBH·Filed 2013·Application pending·0 cites
- 4248US6676384B2Gas friction pumpPFEIFFER VACUUM GMBH·Filed 2002·Granted Jan 13, 2004·6 cites·9 claims
- 4347US11668305B2Vacuum devicePFEIFFER VACUUM GMBH·Filed 2020·Granted Jun 6, 2023·0 cites·17 claims
- 4447US2020072215A1Rotary vane vacuum pumpPFEIFFER VACUUM GMBH·Filed 2019·Application pending·0 cites
- 4547US2009050289A1Vaccuum Die-Casting MethodPFEIFFER VACUUM GMBH·Filed 2005·Application pending·0 cites
- 4646US9410862B2Device for measuring a pressure with at least one pressure sensor having at least one active sensor surfacePFEIFFER VACUUM GMBH·Filed 2013·Granted Aug 9, 2016·0 cites·9 claims
- 4746US7015609B2Machine with a high-speed rotorPFEIFFER VACUUM GMBH·Filed 2003·Granted Mar 21, 2006·4 cites·4 claims
- 4845US9909592B2Vacuum pumpPFEIFFER VACUUM GMBH·Filed 2014·Granted Mar 6, 2018·0 cites·12 claims
- 4945US6699009B2Vacuum pumpPFEIFFER VACUUM GMBH·Filed 2002·Granted Mar 2, 2004·4 cites·4 claims
- 5045US2007286749A1Drive for vacuum pumpPFEIFFER VACUUM GMBH·Filed 2007·Application pending·0 cites
Showing the top 50 of 77 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when PFEIFFER VACUUM GMBH files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →