| Patents for F04C 25 - Adaptations for special use of pumps for elastic fluids (1,852) |
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| 04/05/2005 | US6874996 Compressor having independently driven members |
| 04/05/2005 | US6874989 Vacuum pump |
| 03/31/2005 | WO2005028871A1 Cleaning method of a rotary piston vacuum pump |
| 03/31/2005 | US20050069446 Cooled screw vacuum pump |
| 03/31/2005 | US20050069440 Multistage dry pump |
| 03/30/2005 | EP1519045A2 Multistage dry vacuum pump |
| 03/30/2005 | CN2688934Y Vortex vacuum pump with multi-vortex line and double side |
| 03/30/2005 | CN2688932Y Rotary anti-oil-returning vacuum/compression two-purpose pumps |
| 03/30/2005 | CN1601108A Rotary blade vacuum pump |
| 03/30/2005 | CN1601090A Swirl fluid machinery |
| 03/17/2005 | WO2005024239A1 Air-cooled dry vacuum pump |
| 03/09/2005 | EP1511936A1 Dual-shaft vacuum pump |
| 03/08/2005 | US6863511 Two-shaft vacuum pump |
| 02/24/2005 | DE10357805A1 Auslass-Rückschlagventil für eine Fahrzeug-Vakuumpumpe Outlet check valve for a vehicle vacuum pump |
| 02/23/2005 | CN1585860A Cooled screw-type vacuum pump |
| 02/23/2005 | CN1585859A Tempering method for a screw-type vacuum pump |
| 02/17/2005 | US20050034767 Processing apparatus having integrated pumping system |
| 02/17/2005 | DE202004015599U1 Vakuumpumpensystem mit mehreren Pumpen Vacuum system with multiple pumps |
| 02/02/2005 | EP1502029A1 Vacuum pump and method for generating sub-pressure |
| 02/02/2005 | CN1573116A Oil seal device of roots blower |
| 01/27/2005 | US20050019169 Tempering method for a screw-type vacuum pump |
| 01/06/2005 | US20050000436 Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor |
| 12/30/2004 | US20040265160 Cooled screw-type vacuum pump |
| 12/30/2004 | US20040265135 Vacuum pumping device with electronic control of the motor |
| 12/29/2004 | CN2667204Y Efficient vacuum pump |
| 12/29/2004 | CN2667203Y Multi-stage Roots oil-free vacuum pump |
| 12/29/2004 | CN2667202Y Single-side vortex oil free vacuum pump |
| 12/23/2004 | US20040258551 Vacuum pump |
| 12/22/2004 | EP1488107A1 Eccentric pump and method for operation of said pump |
| 12/09/2004 | US20040247465 Screw type vacuum pump |
| 12/02/2004 | US20040241027 Roots pump |
| 12/01/2004 | EP1482178A1 Vacuum pumping device |
| 12/01/2004 | CN2660175Y Multi-stage vacuum pump |
| 12/01/2004 | CN1550674A Roots pump |
| 11/24/2004 | EP1479915A1 Scroll pump |
| 11/24/2004 | EP1479913A2 Roots pump |
| 11/17/2004 | EP1476661A1 Vacuum pump |
| 11/16/2004 | US6817377 Processing apparatus having integrated pumping system |
| 11/04/2004 | US20040219045 Enclosed mechanical booster |
| 10/27/2004 | CN1173118C 干式真空泵及其转子 Dry vacuum pump and rotor |
| 10/21/2004 | WO2004090332A1 Dry vacuum pump and method of starting same |
| 10/06/2004 | EP1021654B1 Screw vacuum pump provided with rotors |
| 09/23/2004 | WO2004081381A1 Pump |
| 09/23/2004 | US20040184911 Liquid seal pump of the helical screw type |
| 09/23/2004 | DE10197271T5 Schraubenvakuumpumpe Screw vacuum pump |
| 09/16/2004 | WO2004079198A1 Screw vacuum pump |
| 09/16/2004 | WO2004079197A1 Vacuum pump |
| 09/15/2004 | EP1339608B1 Device for evacuating a food storage container which can be sealed by means of a valve |
| 09/02/2004 | DE102004003567A1 Vakuumpumpe mit Schieber Vacuum pump with slide |
| 08/26/2004 | DE10197270T5 Vakuumpumpe Vacuum pump |
| 08/17/2004 | US6776588 Dry compressing vacuum pump having a gas ballast device |
| 08/17/2004 | US6776586 Multi-stage vacuum pump |
| 08/12/2004 | DE10150302B4 Vorrichtung zur Erzeugung von Vakuum für Verbraucher in einem Kraftfahrzeug Device for generating a vacuum for consumers in a motor vehicle |
| 08/11/2004 | EP1444441A1 Tempering method for a screw-type vacuum pump |
| 08/11/2004 | EP1444440A1 Cooled screw-type vacuum pump |
| 08/11/2004 | EP1444439A1 Vacuum pumps |
| 07/22/2004 | DE10300203A1 Zweiwellenvakuumpumpe sowie Verfahren zur Herstellung einer Zweiwellenvakuumpumpe Two-shaft vacuum pump, as well as process for producing a twin-shaft vacuum pump |
| 07/14/2004 | EP1437512A2 Twin-shaft vacuum pump |
| 07/14/2004 | EP1129294A4 Scroll-type fluid displacement device for vacuum pump application |
| 07/14/2004 | CN2625605Y Built-in type fore vacuum apparatus for Root's vacuum pump |
| 07/14/2004 | CN2625602Y Multi-stag vacuum pump |
| 07/14/2004 | CN1512064A Involute and straight claw type rotor structure for oilless vacuum pump |
| 07/07/2004 | EP1434896A2 Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor |
| 07/06/2004 | US6758660 Screw vacuum pump with a coolant circuit |
| 07/01/2004 | US20040126255 Fluid pump |
| 06/24/2004 | WO2004053311A1 Hermetic motor and gas booster |
| 06/09/2004 | EP0975873B1 Improved tip seal for scroll-type vacuum pump |
| 06/01/2004 | US6743004 Vacuum pump |
| 05/13/2004 | US20040091380 Two-shaft vacuum pump |
| 05/12/2004 | CN1495363A 真空泵 Vacuum pump |
| 05/12/2004 | CN1495362A 流体泵 Fluid pump |
| 05/11/2004 | US6734586 Alternator having vacuum pump capable of improving cooling characteristic |
| 04/29/2004 | WO2004036047A1 Rotary piston vacuum pump with washing installation |
| 04/29/2004 | WO2004036046A1 Vane type vacuum pump |
| 04/29/2004 | US20040081565 Vacuum pump |
| 04/28/2004 | CN1492775A Oil separator for pump overflowing with oil |
| 04/22/2004 | DE10197228T5 Gekapselter mechanischer Booster Sealed mechanical booster |
| 04/21/2004 | CN1490527A Manufacturing apparatus and life predictive method for whirler |
| 04/21/2004 | CN1490526A 真空泵 Vacuum pump |
| 04/20/2004 | US6722867 Rotary compressor for vehicle |
| 04/15/2004 | US20040068969 Oil separator for pumps overflowing with oil |
| 04/15/2004 | DE19882900B4 Schraubenrotor-Nassvakuumpumpe Screw rotor wet vacuum pump |
| 04/14/2004 | EP1117933B1 Vacuum pump |
| 04/01/2004 | US20040064277 Manufacturing apparatus and method for predicting life of a manufacturing apparatus which uses a rotary machine |
| 03/17/2004 | EP1398509A2 Vacuum pump |
| 03/17/2004 | EP1398507A2 Multistage Roots-type vacuum pump |
| 03/17/2004 | EP1398506A2 Hermetic multistage vacuum pump |
| 03/17/2004 | EP1397595A1 Liquid seal pump of the helical screw type |
| 03/16/2004 | US6705842 Dynamic attenuator of discharge noise from rotary vacuum machines |
| 03/11/2004 | US20040047755 Vacuum pump |
| 03/10/2004 | EP1322864B1 Plastic vane for a vane-cell vacuum pump |
| 03/09/2004 | US6702558 Twin screw rotors and displacement machines containing the same |
| 03/02/2004 | US6699023 Multi-stage vacuum pump |
| 03/02/2004 | US6699022 Vacuum exhaust apparatuses and vacuum exhaust methods |
| 02/26/2004 | DE10331189A1 Suction air producing device for printing press, has movable air delivery unit accommodated on sheet holding device, and actuating unit fixed to machine frame, which is movable relative to sheet holding device |
| 02/25/2004 | CN1478033A Device for emptying food storage container which can be sealed by means of valve |
| 02/24/2004 | US6695602 Bacterial growth inhibition in a circulation system comprising a compressor |
| 02/19/2004 | US20040033153 Fluid transport system and method therefor |
| 02/17/2004 | US6692205 Compressor incorporated with motor and its cooling jacket |
| 02/12/2004 | US20040026850 Sheet-Processing machine having a suction air producing device |