Inventor · disambiguated record
Thomas Dreifert
Also filed as: DREIFERT THOMAS
14 granted patents·15 pending applications·144 citations·filing 1998–2021
91Inventor score
Files withLEYBOLD GMBH12LEYBOLD VAKUUM GMBH6DREIFERT THOMAS4OERLIKON LEYBOLD VACUUM GMBH4BIRCH PETER1
Top patents by PatentIndex Score
29 records- 0187US6544020B1Cooled screw vacuum pumpLEYBOLD VAKUUM GMBH·Filed 1998·Granted Apr 8, 2003·45 cites·53 claims
- 0277USD630229SVacuum pumpOERLIKON LEYBOLD VACUUM GMBH·Filed 2009·Granted Jan 4, 2011·23 cites·1 claims
- 0376US6382930B1Screw vacuum pump provided with rotorsLEYBOLD VAKUUM GMBH·Filed 1998·Granted May 7, 2002·27 cites·21 claims
- 0471US6776588B1Dry compressing vacuum pump having a gas ballast deviceLEYBOLD VAKUUM GMBH·Filed 2000·Granted Aug 17, 2004·15 cites·8 claims
- 0569USD617814SVacuum pumpOERLIKON LEYBOLD VACUUM GMBH·Filed 2009·Granted Jun 15, 2010·16 cites·1 claims
- 0661US11293435B2Vacuum pump screw rotors with symmetrical profiles on low pitch sectionsLEYBOLD GMBH·Filed 2017·Granted Apr 5, 2022·0 cites·17 claims
- 0758US11300123B2Screw vacuum pump without internal coolingLEYBOLD GMBH·Filed 2017·Granted Apr 12, 2022·0 cites·19 claims
- 0856US6964559B2Two shaft vacuum pump with cantilevered rotorsLEYBOLD VAKUUM GMBH·Filed 2001·Granted Nov 15, 2005·7 cites·23 claims
- 0955US7153093B2Vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2003·Granted Dec 26, 2006·6 cites·19 claims
- 1051US9476423B2Roots pump connection channels separating adjacent pump stagesBIRCH PETER·Filed 2012·Granted Oct 25, 2016·0 cites·10 claims
- 1149US2020362861A1CompressorLEYBOLD GMBH·Filed 2019·Application pending·0 cites
- 1248US2020325897A1Screw rotorLEYBOLD GMBH·Filed 2018·Application pending·0 cites
- 1348US2021270270A1Dual or multi-shaft vacuum pumpLEYBOLD GMBH·Filed 2019·Application pending·0 cites
- 1447US6863511B2Two-shaft vacuum pumpLEYBOLD VAKUUM GMBH·Filed 2001·Granted Mar 8, 2005·3 cites·18 claims
- 1546US7186098B2Eccentric pump and method for operation of said pumpOERLIKON LEYBOLD VACUUM GMBH·Filed 2003·Granted Mar 6, 2007·2 cites·40 claims
- 1645US10465686B2Vacuum pump systemLEYBOLD GMBH·Filed 2015·Granted Nov 5, 2019·0 cites·20 claims
- 1745US2010086883A1Method for reacting self-igniting dusts in a vacuum pump deviceOERLIKON LEYBOLD VACUUM GMBH·Filed 2007·Application pending·0 cites
- 1845US2009140495A1Shaft SealOBERLIKON LEYBOLD VACUUM GMBH·Filed 2006·Application pending·0 cites
- 1944US2021140430A1Multi-stage rotary piston pumpLEYBOLD GMBH·Filed 2018·Application pending·0 cites
- 2042US2019186493A1Dry-compressing vacuum pumpLEYBOLD GMBH·Filed 2017·Application pending·0 cites
- 2142US2023323879A1Vacuum pumpLEYBOLD GMBH·Filed 2021·Application pending·0 cites
- 2241US9234519B2Vacuum pumpDREIFERT THOMAS·Filed 2010·Granted Jan 12, 2016·0 cites·14 claims
- 2341US2019264686A1Vacuum-pump rotorLEYBOLD GMBH·Filed 2017·Application pending·0 cites
- 2436US2018202445A1Pump systemLEYBOLD GMBH·Filed 2016·Application pending·0 cites
- 2536US2009148284A1Vacuum PumpDREIFERT THOMAS·Filed 2007·Application pending·0 cites
- 2633US2012034110A1Vacuum pump housing and set of cooling elements for a vaccum pump housingDREIFERT THOMAS·Filed 2010·Application pending·0 cites
- 2733US2012189478A1Vacuum pump systemDREIFERT THOMAS·Filed 2010·Application pending·0 cites
- 2833US2004067149A1Screw vacuum pump comprising additional flow bodiesFiled 2002·Application pending·0 cites
- 2933US2018112666A1Vacuum pump systemLEYBOLD GMBH·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →