Malcolm R. Watson

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County Durham, GB

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a filter cartridge using a thermoforming step
- Patent number 7,497,217
- Issue date Mar 3, 2009
- 3M Innovative Properties Company
- Andrew S. Viner
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Filter element that has a thermo-formed housing around filter material
- Patent number 6,874,499
- Issue date Apr 5, 2005
- 3M Innovative Properties Company
- Andrew S. Viner
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Method of making a filter cartridge that uses thermoforming step
- Publication number 20050161045
- Publication date Jul 28, 2005
- 3M Innovative Properties Company
- Andrew S. Viner
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Filter element that has a thermo-formed housing around filter material
- Publication number 20040055604
- Publication date Mar 25, 2004
- Andrew S. Viner
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL