Erich Stephen

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Roxboro, CA

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Patents Grantslast 30 patents

Information Patent Grant
Double trolley overhead door operator
- Patent number 6,799,393
- Issue date Oct 5, 2004
- Westinghouse Air Brake Technologies Corporation
- Erich P. Stephen
- B61 - RAILWAYS
Information Patent Grant
Drive nut assembly for a door operator
- Patent number 6,718,694
- Issue date Apr 13, 2004
- Westinghouse Air Brake Technologies Corporation
- Andre Stojc
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Encased overhead door operator having threadably attached mounts
- Patent number 6,324,789
- Issue date Dec 4, 2001
- Westinghouse Air Brake Company
- Erich P. Stephen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Double trolley overhead door operator
- Publication number 20030093953
- Publication date May 22, 2003
- Erich P. Stephen
- B61 - RAILWAYS
Information Patent Application
Drive nut assembly for a door operator
- Publication number 20020194783
- Publication date Dec 26, 2002
- Andre Stojc
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES