Inventor · disambiguated record
Donald R. Means
Also filed as: MEANS DONALD R
6 granted patents·225 citations·filing 1982–2005
86Inventor score
Files withAMERICAN TELEPHONE & TELEGRAPH2AT & T BELL LAB1AT & T CORP1BELL TELEPHONE LABOR INC1CARRIER CORP1
Top patents by PatentIndex Score
6 records- 0195US7755220B2Power stealing for a thermostat using a TRIAC with FET controlCARRIER CORP·Filed 2005·Granted Jul 13, 2010·132 cites·14 claims
- 0268US4847897AAdaptive expander for telephonesAMERICAN TELEPHONE & TELEGRAPH·Filed 1987·Granted Jul 11, 1989·31 cites·5 claims
- 0368US4488006AApparatus for controlling the application of telephone line power in a telephone setAT & T BELL LAB·Filed 1982·Granted Dec 11, 1984·22 cites·7 claims
- 0457US4700382AVoice-switched telephone circuit with center idle stateAMERICAN TELEPHONE & TELEGRAPH·Filed 1986·Granted Oct 13, 1987·21 cites·11 claims
- 0543US5388153AApparatus and method for detecting telephone line statusAT & T CORP·Filed 1993·Granted Feb 7, 1995·15 cites·17 claims
- 0636US4413159ADial pulsing circuitBELL TELEPHONE LABOR INC·Filed 1982·Granted Nov 1, 1983·4 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →