Assignee
LEYBOLD VAKUUM GMBH
DE·54 granted patents·3 pending applications·959 citations·filing 1996–2008
Top patents by PatentIndex Score
57 records- 0189US6877963B2Vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2001·Granted Apr 12, 2005·30 cites·12 claims
- 0287US6544020B1Cooled screw vacuum pumpLEYBOLD VAKUUM GMBH·Filed 1998·Granted Apr 8, 2003·45 cites·53 claims
- 0386US6705844B2Dynamic sealLEYBOLD VAKUUM GMBH·Filed 2000·Granted Mar 16, 2004·44 cites·12 claims
- 0484US7323221B2Coating of objectsLEYBOLD VAKUUM GMBH·Filed 2002·Granted Jan 29, 2008·21 cites·7 claims
- 0582US6709236B1High-speed turbo pumpLEYBOLD VAKUUM GMBH·Filed 2000·Granted Mar 23, 2004·32 cites·8 claims
- 0680US6736614B1Rotary piston drive mechanismLEYBOLD VAKUUM GMBH·Filed 2000·Granted May 18, 2004·19 cites·27 claims
- 0779US6758660B2Screw vacuum pump with a coolant circuitLEYBOLD VAKUUM GMBH·Filed 2000·Granted Jul 6, 2004·19 cites·23 claims
- 0878US6149382AVacuum pump with shaft bearingLEYBOLD VAKUUM GMBH·Filed 1998·Granted Nov 21, 2000·35 cites·13 claims
- 0977US6955076B1Foil leak detection chamberLEYBOLD VAKUUM GMBH·Filed 2000·Granted Oct 18, 2005·20 cites·11 claims
- 1076US7011491B2Friction vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2001·Granted Mar 14, 2006·29 cites·16 claims
- 1176US6599084B1Rotor fixture for a friction vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2000·Granted Jul 29, 2003·23 cites·13 claims
- 1276US6382930B1Screw vacuum pump provided with rotorsLEYBOLD VAKUUM GMBH·Filed 1998·Granted May 7, 2002·27 cites·21 claims
- 1376US6065295ALow-temperature refrigerator with cold head and a process for optimizing said cold head for a desired temperature rangeLEYBOLD VAKUUM GMBH·Filed 1996·Granted May 23, 2000·35 cites·17 claims
- 1475US6354142B1Process for testing the tightness of packagesLEYBOLD VAKUUM GMBH·Filed 1997·Granted Mar 12, 2002·43 cites·3 claims
- 1574US6591851B1Seal-gas valve deviceLEYBOLD VAKUUM GMBH·Filed 2000·Granted Jul 15, 2003·26 cites·15 claims
- 1674US6457954B1Frictional vacuum pump with chassis, rotor, housing and device fitted with such a frictional vacuum pumpLEYBOLD VAKUUM GMBH·Filed 1999·Granted Oct 1, 2002·42 cites·20 claims
- 1773US6914361B2Magnetic bearingLEYBOLD VAKUUM GMBH·Filed 2003·Granted Jul 5, 2005·13 cites·12 claims
- 1873US6415650B1Method for operating helium leak indicator and the application of this method to helium leak indicatorsLEYBOLD VAKUUM GMBH·Filed 1998·Granted Jul 9, 2002·32 cites·15 claims
- 1973US6277177B1Gas passage with selectively acting penetration surface and process for producing the penetration surfaceLEYBOLD VAKUUM GMBH·Filed 1996·Granted Aug 21, 2001·32 cites·20 claims
- 2072US6030189AFriction vacuum pump with intermediate inletLEYBOLD VAKUUM GMBH·Filed 1996·Granted Feb 29, 2000·39 cites·4 claims
- 2171US6833643B2Magnetic bearing with dampingLEYBOLD VAKUUM GMBH·Filed 2001·Granted Dec 21, 2004·13 cites·18 claims
- 2271US6776588B1Dry compressing vacuum pump having a gas ballast deviceLEYBOLD VAKUUM GMBH·Filed 2000·Granted Aug 17, 2004·15 cites·8 claims
- 2364US6814550B1Vacuum pump with vibration absorberLEYBOLD VAKUUM GMBH·Filed 2000·Granted Nov 9, 2004·11 cites·10 claims
- 2463US7056108B2Cooled screw-type vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2002·Granted Jun 6, 2006·9 cites·11 claims
- 2563US6119507AMethod and apparatus for recovering helium after testing for leaks in a sample holderLEYBOLD VAKUUM GMBH·Filed 1999·Granted Sep 19, 2000·24 cites·19 claims
- 2662US7156922B2Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system thereforLEYBOLD VAKUUM GMBH·Filed 2002·Granted Jan 2, 2007·5 cites·16 claims
- 2761US6435811B1Friction vacuum pump with a stator and a rotorLEYBOLD VAKUUM GMBH·Filed 1998·Granted Aug 20, 2002·26 cites·16 claims
- 2859US6123516AVacuum pumpLEYBOLD VAKUUM GMBH·Filed 1998·Granted Sep 26, 2000·23 cites·9 claims
- 2957US6019585AOil-sealed vane-type rotary vacuum pump with oil feedLEYBOLD VAKUUM GMBH·Filed 1996·Granted Feb 1, 2000·19 cites·9 claims
- 3056US6964559B2Two shaft vacuum pump with cantilevered rotorsLEYBOLD VAKUUM GMBH·Filed 2001·Granted Nov 15, 2005·7 cites·23 claims
- 3155US7153093B2Vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2003·Granted Dec 26, 2006·6 cites·19 claims
- 3255US7090469B2Turbomolecular pumpLEYBOLD VAKUUM GMBH·Filed 2002·Granted Aug 15, 2006·11 cites·12 claims
- 3353US6867521B2Vacuum conduitLEYBOLD VAKUUM GMBH·Filed 2002·Granted Mar 15, 2005·5 cites·14 claims
- 3452US7090460B2Pump embodied as a side channel pumpLEYBOLD VAKUUM GMBH·Filed 2001·Granted Aug 15, 2006·9 cites·17 claims
- 3552US2009028731A1Ball bearing and a vacuum pump that is equipped with a bearing of this typeLEYBOLD VAKUUM GMBH·Filed 2008·Application pending·0 cites
- 3651US6948921B1Vacuum pump comprising an outletLEYBOLD VAKUUM GMBH·Filed 2000·Granted Sep 27, 2005·5 cites·10 claims
- 3751US6263677B1Multistage low-temperature refrigeration machineLEYBOLD VAKUUM GMBH·Filed 1997·Granted Jul 24, 2001·26 cites·13 claims
- 3850US6422829B1Compound pumpLEYBOLD VAKUUM GMBH·Filed 1998·Granted Jul 23, 2002·17 cites·7 claims
- 3950US6092373ACryopumpLEYBOLD VAKUUM GMBH·Filed 1997·Granted Jul 25, 2000·19 cites·20 claims
- 4047US6863511B2Two-shaft vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2001·Granted Mar 8, 2005·3 cites·18 claims
- 4146US7074026B2Multi-stage helical screw rotorLEYBOLD VAKUUM GMBH·Filed 2001·Granted Jul 11, 2006·8 cites·49 claims
- 4246US6682324B2Radial turbo-blowerLEYBOLD VAKUUM GMBH·Filed 2001·Granted Jan 27, 2004·4 cites·13 claims
- 4344US6168374B1Friction vacuum pumpLEYBOLD VAKUUM GMBH·Filed 1997·Granted Jan 2, 2001·15 cites·13 claims
- 4443US6021663AProcess and leak detector for inspecting a plurality of similar test bodies for leaksLEYBOLD VAKUUM GMBH·Filed 1997·Granted Feb 8, 2000·11 cites·2 claims
- 4542US6999840B2Vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2002·Granted Feb 14, 2006·4 cites·9 claims
- 4640US6702544B1Friction vacuum pump for use in a system for regulating pressure and pressure regulating system comprising a friction vacuum pump of this typeLEYBOLD VAKUUM GMBH·Filed 2000·Granted Mar 9, 2004·3 cites·9 claims
- 4740US2006088238A1Ball bearing and a vacuum pump that is equipped with a bearing of this typeLEYBOLD VAKUUM GMBH·Filed 2003·Application pending·0 cites
- 4839US6890146B2Compound friction vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2001·Granted May 10, 2005·4 cites·7 claims
- 4938US6641376B1Friction vacuum pumpLEYBOLD VAKUUM GMBH·Filed 1999·Granted Nov 4, 2003·10 cites·16 claims
- 5038US6619911B1Friction vacuum pump with a stator and a rotorLEYBOLD VAKUUM GMBH·Filed 1999·Granted Sep 16, 2003·12 cites·27 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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