Inventor · disambiguated record
John O. G. Darrow
Also filed as: DARROW JOHN O G
20 granted patents·137 citations·filing 1975–1991
94Inventor score
Top patents by PatentIndex Score
20 records- 0171US4314306ASignal-powered receiverAMERICAN STANDARD INC·Filed 1980·Granted Feb 2, 1982·23 cites·10 claims
- 0269US4150417AFail-safe timing circuitWESTINGHOUSE AIR BRAKE CO·Filed 1978·Granted Apr 17, 1979·14 cites·15 claims
- 0359US4314234ATest set for railway cab signal systemAMERICAN STANDARD INC·Filed 1979·Granted Feb 2, 1982·14 cites·16 claims
- 0459US4044272AFail-safe electronic time delay circuitWESTINGHOUSE AIR BRAKE CO·Filed 1976·Granted Aug 23, 1977·8 cites·10 claims
- 0550US4001710AFail-safe active band-pass filterWESTINGHOUSE AIR BRAKE CO·Filed 1975·Granted Jan 4, 1977·7 cites·8 claims
- 0648US4315208ARegulated power supply having its d.c. voltage source selectively supplemented by a d.c. to d.c. converterAMERICAN STANDARD INC·Filed 1980·Granted Feb 9, 1982·10 cites·11 claims
- 0748US4009403ALow gain pulse generating circuitWESTINGHOUSE AIR BRAKE CO·Filed 1975·Granted Feb 22, 1977·5 cites·10 claims
- 0846US4368440AFail-safe low-pass filtering circuitAMERICAN STANDARD INC·Filed 1980·Granted Jan 11, 1983·7 cites·10 claims
- 0944US4763017AElectronic bipolar interface circuitAMERICAN STANDARD INC·Filed 1985·Granted Aug 9, 1988·7 cites·18 claims
- 1044US4130764AFail-safe or logic circuitWESTINGHOUSE AIR BRAKE CO·Filed 1977·Granted Dec 19, 1978·4 cites·11 claims
- 1143US4009454AFail-safe constant amplitude signal generatorWESTINGHOUSE AIR BRAKE CO·Filed 1975·Granted Feb 22, 1977·7 cites·10 claims
- 1240US4384250AVital vehicle movement detectorAMERICAN STANDARD INC·Filed 1981·Granted May 17, 1983·9 cites·8 claims
- 1339US4314237AFail-safe acknowledging circuitAMERICAN STANDARD INC·Filed 1980·Granted Feb 2, 1982·6 cites·13 claims
- 1437US5331288ARailroad rail signal receiver having frequency conversion and a resonant tuned transformer secondaryUNION SWITCH & SIGNAL INC·Filed 1991·Granted Jul 19, 1994·6 cites·25 claims
- 1537US5030886ASelf-checking circuit arrangement for operation of a searchlight signalUNION SWITCH & SIGNAL INC·Filed 1990·Granted Jul 9, 1991·6 cites·22 claims
- 1634US4641045AFail-safe one and only one signal checking circuitAMERICAN STANDARD INC·Filed 1984·Granted Feb 3, 1987·2 cites·10 claims
- 1732US4056739AFail-safe electronic polarized relayWESTINGHOUSE AIR BRAKE CO·Filed 1976·Granted Nov 1, 1977·1 cites·10 claims
- 1830US4177459AFail-safe acknowledging circuitWESTINGHOUSE AIR BRAKE CO·Filed 1977·Granted Dec 4, 1979·1 cites·10 claims
- 1929US4623850AVital code generating circuitAMERICAN STANDARD INC·Filed 1984·Granted Nov 18, 1986·0 cites·20 claims
- 2029US4401970AVital lowest speed command selectorAMERICAN STANDARD INC·Filed 1981·Granted Aug 30, 1983·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →