Individual holder
JOHNSTON BARRY W
US·10 granted patents·1 pending application·76 citations·filing 1980–2024
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
11 records- 0178US4698973AClosed loop solar collector system powering a self-starting uniflow engineJOHNSTON BARRY W·Filed 1985·Granted Oct 13, 1987·34 cites·21 claims
- 0260US2026092577A1Near-Adiabatic External Heat Valve EngineJOHNSTON BARRY W·Filed 2024·Application pending·0 cites
- 0349US10982543B2Near-adiabatic engineJOHNSTON BARRY W·Filed 2017·Granted Apr 20, 2021·0 cites·20 claims
- 0449US4407129AClosed loop solar collecting system operating a thermoelectric generator systemJOHNSTON BARRY W·Filed 1982·Granted Oct 4, 1983·11 cites·4 claims
- 0548US4788823AValve mechanism for controlling a reciprocating engine power strokeJOHNSTON BARRY W·Filed 1987·Granted Dec 6, 1988·11 cites·8 claims
- 0640US10451000B2Nearly full adiabatic engineJOHNSTON BARRY W·Filed 2016·Granted Oct 22, 2019·0 cites·20 claims
- 0739US4627241AClosed loop solar collector system powering a self-starting uniflow steam engineJOHNSTON BARRY W·Filed 1984·Granted Dec 9, 1986·6 cites·10 claims
- 0836US4354483AClosed loop solar collector system with dual reservoirs and fluid bypassJOHNSTON BARRY W·Filed 1980·Granted Oct 19, 1982·5 cites·2 claims
- 0932US4938117AMulticylinder self-starting uniflow engineJOHNSTON BARRY W·Filed 1988·Granted Jul 3, 1990·3 cites·26 claims
- 1032US4412529AClosed loop solar collector system with dual reservoirs and fluid bypassJOHNSTON BARRY W·Filed 1982·Granted Nov 1, 1983·4 cites·4 claims
- 1130US4397300AClosed loop solar collector system with dual chamber fluid supply arrangementJOHNSTON BARRY W·Filed 1982·Granted Aug 9, 1983·2 cites·7 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →