Birk Cliff Sorensen

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Whittier, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Keypad lockset
- Patent number 8,176,761
- Issue date May 15, 2012
- EMTEK Products, Inc.
- Birk Cliff Sorensen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Keypad lockset
- Patent number 8,141,400
- Issue date Mar 27, 2012
- EMTEK Products, Inc.
- Birk Cliff Sorensen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Ramp weight-reducing assembly
- Patent number 5,467,855
- Issue date Nov 21, 1995
- EMTEK Products, Inc.
- Birk C. Sorensen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Double latch dead bolt lock operating mechanism
- Patent number 5,267,457
- Issue date Dec 7, 1993
- Juralco, Inc.
- Birk Sorensen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Ramp handle
- Patent number 4,845,808
- Issue date Jul 11, 1989
- Juralco, Inc.
- Thomas H. Millar
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
CONCEALED FASTENER LOCKSET
- Publication number 20150015003
- Publication date Jan 15, 2015
- PING HSIEN TSAI
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
CONCEALED FASTENER LOCKSET
- Publication number 20140159392
- Publication date Jun 12, 2014
- EMTEK PRODUCTS, INC.
- Ping Hsien Tsai
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
KEYPAD LOCKSET
- Publication number 20120055213
- Publication date Mar 8, 2012
- BIRK Cliff SORENSEN
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
KEYPAD LOCKSET
- Publication number 20100257906
- Publication date Oct 14, 2010
- Birk Cliff Sorensen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES