Inventor · disambiguated record
Keith Douglas Ridler
Also filed as: PLUMMER DEXTER R · RIDLER KEITH D · RIDLER KEITH DOUGLAS
9 granted patents·109 citations·filing 1974–1984
88Inventor score
Files withSTRATHEARN AUDIO LTD6BRITISH AMERICAN TOBACCO CO1STRATHEARM AUDIO LIMITED1STREATHERN AUDIO LTD1
Top patents by PatentIndex Score
9 records- 0191US3966330APhonograph record detecting arrangementSTRATHEARN AUDIO LTD·Filed 1974·Granted Jun 29, 1976·39 cites·12 claims
- 0264US4023130APivoted arm control arrangementsSTRATHEARN AUDIO LTD·Filed 1975·Granted May 10, 1977·12 cites·7 claims
- 0359US4065188ALinear bearing for parallel tracking armSTRATHEARN AUDIO LTD·Filed 1976·Granted Dec 27, 1977·15 cites·6 claims
- 0455US4685475AMonitoring rodBRITISH AMERICAN TOBACCO CO·Filed 1984·Granted Aug 11, 1987·19 cites·7 claims
- 0548US4046386AControl deviceSTRATHEARN AUDIO LTD·Filed 1976·Granted Sep 6, 1977·7 cites·5 claims
- 0648US3992018AMethod and apparatus for use in cleaning a gramophone discSTRATHEARN AUDIO LTD·Filed 1975·Granted Nov 16, 1976·6 cites·3 claims
- 0747US4200828APivoted arm control arrangementSTREATHERN AUDIO LTD·Filed 1978·Granted Apr 29, 1980·7 cites·5 claims
- 0832US4024473AStroboscopic deviceSTRATHEARN AUDIO LTD·Filed 1975·Granted May 17, 1977·4 cites·5 claims
- 0919US3966215APhonograph auto-changer center spindleSTRATHEARM AUDIO LIMITED·Filed 1975·Granted Jun 29, 1976·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →