David F. Jones

Person

Middletown, NJ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Control and interface apparatus for telephone systems
- Patent number 5,048,080
- Issue date Sep 10, 1991
- AT&T Bell Laboratories
- John F. Bell
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system having automatic call route selection
- Patent number 4,797,915
- Issue date Jan 10, 1989
- American Telephone and Telegraph Company
- Duane O. Bowker
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for locating programs resident on a cartridge of a cartri...
- Patent number 4,703,416
- Issue date Oct 27, 1987
- American Telephone and Telegraph Company
- Joseph A. Crupi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Call transfer method and circuitry
- Patent number 4,560,837
- Issue date Dec 24, 1985
- AT&T Information Systems Inc.
- Robert A. Carson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system selective call screening arrangement
- Patent number 4,278,844
- Issue date Jul 14, 1981
- Bell Telephone Laboratories, Incorporated
- David F. Jones
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone signaling circuit
- Patent number 4,220,827
- Issue date Sep 2, 1980
- Bell Telephone Laboratories, Incorporated
- Edmund T. Burke
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone having separate voice and signaling pairs
- Patent number 4,216,356
- Issue date Aug 5, 1980
- Bell Telephone Laboratories, Incorporated
- Edmund T. Burke
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key telephone off-premises line circuit
- Patent number 4,039,762
- Issue date Aug 2, 1977
- Bell Telephone Laboratories, Incorporated
- Albert Edward Donkin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

David F. Jones

Person

Patents Grantslast 30 patents

Control and interface apparatus for telephone systems

Communication system having automatic call route selection

Apparatus for locating programs resident on a cartridge of a cartri...

Call transfer method and circuitry

Communication system selective call screening arrangement

Telephone signaling circuit

Telephone having separate voice and signaling pairs

Key telephone off-premises line circuit