Herbert Waldman

Person

Brooklyn, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for detecting a prescribed audio frequency act...
- Patent number 5,426,691
- Issue date Jun 20, 1995
- Herbert Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Abbreviated and enhanced dialing apparatus and methods particularly...
- Patent number 5,402,481
- Issue date Mar 28, 1995
- Herbert Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for pre-identification of keys and switches
- Patent number 5,311,175
- Issue date May 10, 1994
- Herbert Waldman
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Abbreviated and enhanced dialing apparatus and methods particularly...
- Patent number 5,274,693
- Issue date Dec 28, 1993
- Herbert Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and methods for selectively forwarding telephone calls
- Patent number 5,168,517
- Issue date Dec 1, 1992
- Herbert Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic area code dialing apparatus and methods particularly adap...
- Patent number 5,157,719
- Issue date Oct 20, 1992
- Advanced Cellular Telcom Corp.
- Herbert Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hold circuits for telephone systems
- Patent number 5,131,031
- Issue date Jul 14, 1992
- Herbert Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Muting circuit for telephone answering machine
- Patent number 4,941,166
- Issue date Jul 10, 1990
- Herbert H. Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Single telephone line call forwarding device
- Patent number 4,768,224
- Issue date Aug 30, 1988
- Herbert H. Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone privacy circuit
- Patent number 4,726,048
- Issue date Feb 16, 1988
- Herbert H. Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Single line telephone call forwarding device
- Patent number 4,670,900
- Issue date Jun 2, 1987
- Herbert H. Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone call forwarding device
- Patent number 4,626,630
- Issue date Dec 2, 1986
- Orenbuch; Louis
- Herbert H. Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Energy saving control circuit for a light switch and a method therefor
- Patent number 4,540,984
- Issue date Sep 10, 1985
- Herbert H. Waldman
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Telephone call restricting apparatus
- Patent number 4,251,692
- Issue date Feb 17, 1981
- Herbert H. Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hold circuit for telephone system
- Patent number 4,243,844
- Issue date Jan 6, 1981
- Herbert H. Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hold circuit for telephones
- Patent number 4,001,520
- Issue date Jan 4, 1977
- Herbert H. Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for automatically limiting rewind in a telepho...
- Patent number 3,935,389
- Issue date Jan 27, 1976
- Quasar Microsystems, Inc.
- Herbert Waldman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Herbert Waldman

Person

Patents Grantslast 30 patents

Method and apparatus for detecting a prescribed audio frequency act...

Abbreviated and enhanced dialing apparatus and methods particularly...

Method and apparatus for pre-identification of keys and switches

Abbreviated and enhanced dialing apparatus and methods particularly...

Apparatus and methods for selectively forwarding telephone calls

Automatic area code dialing apparatus and methods particularly adap...

Hold circuits for telephone systems

Muting circuit for telephone answering machine

Single telephone line call forwarding device

Telephone privacy circuit

Single line telephone call forwarding device

Telephone call forwarding device

Energy saving control circuit for a light switch and a method therefor

Telephone call restricting apparatus

Hold circuit for telephone system

Hold circuit for telephones

Method and apparatus for automatically limiting rewind in a telepho...