George T. Yu

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Petaluma, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Master keyed combination lock
- Patent number 8,087,275
- Issue date Jan 3, 2012
- Acco Brands USA LLC
- Carl H. Poppe
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Master keyed combination lock
- Patent number 7,805,969
- Issue date Oct 5, 2010
- Acco Brands USA LLC
- Carl H. Poppe
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
High security pin tumbler lock
- Patent number 7,441,431
- Issue date Oct 28, 2008
- Micro Security Devices, Inc.
- John L. Weber
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Shock proof scale
- Patent number 4,611,677
- Issue date Sep 16, 1986
- National Controls, Inc.
- George T. Yu
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
MASTER KEYED COMBINATION LOCK
- Publication number 20100319419
- Publication date Dec 23, 2010
- ACCO Brands USA LLC
- Carl H. Poppe
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Master keyed combination lock
- Publication number 20080006066
- Publication date Jan 10, 2008
- PC Guardian Anti-Theft Products Inc.
- Carl H. Poppe
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
High security pin tumbler lock
- Publication number 20070157688
- Publication date Jul 12, 2007
- PC Guardian Anti-Theft Products Inc.
- John L. Weber
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES