Christian Ehrsam

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Winterthur, CH

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and process for storing hydrate-forming gaseous hydrocarbons
- Patent number 4,920,752
- Issue date May 1, 1990
- Sulzer Brothers Limited
- Christian Ehrsam
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Grant
Metal microfilter
- Patent number 4,812,236
- Issue date Mar 14, 1989
- Sulzer Brothers Limited
- Christian Ehrsam
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Microfilter foil and method of producing same
- Patent number 4,801,379
- Issue date Jan 31, 1989
- Sulzer Brothers Limited
- Christian Ehrsam
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of fluid component separation by crystallization, and crysta...
- Patent number 4,776,177
- Issue date Oct 11, 1988
- Gebruder Sulzer Aktiengesellschaft
- Slobodan Jancic
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method and apparatus for freeze drying
- Patent number 4,749,394
- Issue date Jun 7, 1988
- Sulzer Brothers Limited
- Christian Ehrsam
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Method and apparatus for generating an ice crystal suspension
- Patent number 4,734,116
- Issue date Mar 29, 1988
- Sulzer Brothers Limited
- Christian Ehrsam
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...