P

Inventor

DREIFERT THOMAS

DE14 patents
⚠️ This page may combine multiple inventors who share the name “DREIFERT THOMAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LEYBOLD VAKUUM GMBH

6 patents
US6544020B1Apr 8, 2003

Cooled screw vacuum pump

LEYBOLD VAKUUM GMBH45 citations92
US6382930B1May 7, 2002

Screw vacuum pump provided with rotors

LEYBOLD VAKUUM GMBH27 citations92
US6776588B1Aug 17, 2004

Dry compressing vacuum pump having a gas ballast device

LEYBOLD VAKUUM GMBH15 citations78
US6964559B2Nov 15, 2005

Two shaft vacuum pump with cantilevered rotors

LEYBOLD VAKUUM GMBH7 citations71
US7153093B2Dec 26, 2006

Vacuum pump

LEYBOLD VAKUUM GMBH6 citations60
US6863511B2Mar 8, 2005

Two-shaft vacuum pump

LEYBOLD VAKUUM GMBH3 citations59

OERLIKON LEYBOLD VACUUM GMBH

3 patents
USD630229SJan 4, 2011

Vacuum pump

OERLIKON LEYBOLD VACUUM GMBH23 citations91
USD617814SJun 15, 2010

Vacuum pump

OERLIKON LEYBOLD VACUUM GMBH16 citations82
US7186098B2Mar 6, 2007

Eccentric pump and method for operation of said pump

OERLIKON LEYBOLD VACUUM GMBH2 citations61

LEYBOLD GMBH

3 patents
US11300123B2Apr 12, 2022

Screw vacuum pump without internal cooling

LEYBOLD GMBH0 citations59
US11293435B2Apr 5, 2022

Vacuum pump screw rotors with symmetrical profiles on low pitch sections

LEYBOLD GMBH0 citations59
US10465686B2Nov 5, 2019

Vacuum pump system

LEYBOLD GMBH0 citations42

BIRCH PETER

1 patent
US9476423B2Oct 25, 2016

Roots pump connection channels separating adjacent pump stages

BIRCH PETER0 citations44

DREIFERT THOMAS

1 patent
US9234519B2Jan 12, 2016

Vacuum pump

DREIFERT THOMAS0 citations43