Individual holder
WALDMAN HERBERT H
US·8 granted patents·218 citations·filing 1975–1988
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
8 records- 0193US4243844AHold circuit for telephone systemWALDMAN HERBERT H·Filed 1978·Granted Jan 6, 1981·53 cites·51 claims
- 0290US4540984AEnergy saving control circuit for a light switch and a method thereforWALDMAN HERBERT H·Filed 1982·Granted Sep 10, 1985·57 cites·90 claims
- 0374US4001520AHold circuit for telephonesWALDMAN HERBERT H·Filed 1975·Granted Jan 4, 1977·17 cites·18 claims
- 0469US4251692ATelephone call restricting apparatusWALDMAN HERBERT H·Filed 1978·Granted Feb 17, 1981·21 cites·42 claims
- 0563US4941166AMuting circuit for telephone answering machineWALDMAN HERBERT H·Filed 1988·Granted Jul 10, 1990·24 cites·28 claims
- 0663US4726048ATelephone privacy circuitWALDMAN HERBERT H·Filed 1984·Granted Feb 16, 1988·16 cites·30 claims
- 0757US4670900ASingle line telephone call forwarding deviceWALDMAN HERBERT H·Filed 1985·Granted Jun 2, 1987·16 cites·7 claims
- 0854US4768224ASingle telephone line call forwarding deviceWALDMAN HERBERT H·Filed 1987·Granted Aug 30, 1988·14 cites·3 claims
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