John K. Groff

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Boston, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Remotely operable door lock interface system
- Patent number 7,696,858
- Issue date Apr 13, 2010
- John K. Groff
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Remotely operable door lock interface system
- Publication number 20080011032
- Publication date Jan 17, 2008
- John K. Groff
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES