Donald E. Sturgis

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Claremont, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-contained programmable terminal for security systems
- Patent number RE35336
- Issue date Sep 24, 1996
- Casi-Rusco, Inc.
- Bryan D. Ulch
- 340 - Communications: electrical
Information Patent Grant
Loop communication system
- Patent number 5,049,871
- Issue date Sep 17, 1991
- American Magnetics Corporation
- Donald P. Sturgis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Self-contained programmable terminal for security systems
- Patent number 4,218,690
- Issue date Aug 19, 1980
- A-T-O, Inc.
- Bryan D. Ulch
- G07 - CHECKING-DEVICES
Information Patent Grant
Self-contained programmable terminal for security systems
- Patent number 4,216,375
- Issue date Aug 5, 1980
- A-T-O Inc.
- Bryan D. Ulch
- G07 - CHECKING-DEVICES
Information Patent Grant
System for limiting access to security system program
- Patent number 4,095,739
- Issue date Jun 20, 1978
- A-T-O Inc.
- Robert J. Fox
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Multiple wireless access points for wireless locksets
- Publication number 20080174403
- Publication date Jul 24, 2008
- Michael Wolpert
- G07 - CHECKING-DEVICES