Josef Sprehe

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Fuerth-Vach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for machining a sealing seat of a shut-off valve
- Patent number 8,539,673
- Issue date Sep 24, 2013
- Areva GmbH
- Siegfried Gügel
- B24 - GRINDING POLISHING
Information Patent Grant
Combined feed and mixing device
- Patent number 5,749,651
- Issue date May 12, 1998
- Siemens Aktiengesellschaft
- Klaus Huttenhofer
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Catalyst for reducing nitrogen oxides
- Patent number 5,225,390
- Issue date Jul 6, 1993
- Siemens Aktiengesellschaft
- Doris Vogel
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for producing a catalyst for reducing nitrogen oxides in fl...
- Patent number 5,045,516
- Issue date Sep 3, 1991
- Siemens Aktiengesellschaft
- Doris Vogel
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process utilizing catalytic material for the reduction of nitrous o...
- Patent number 4,812,296
- Issue date Mar 14, 1989
- Siemens Aktiengesellschaft
- Helmut Schmelz
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND DEVICE FOR MACHINING A SEALING SEAT OF A SHUT-OFF VALVE
- Publication number 20120240403
- Publication date Sep 27, 2012
- AREVA NP GMBH
- Siegfried Gügel
- B24 - GRINDING POLISHING