Inventor · disambiguated record
Louis Dorren
Also filed as: DORREN LOUIS
10 granted patents·47 citations·filing 1974–2001
87Inventor score
Top patents by PatentIndex Score
10 records- 0164US4061882AQuadrature multiplying four-channel demodulatorQUADRACAST SYSTEMS·Filed 1976·Granted Dec 6, 1977·16 cites·5 claims
- 0240US4062547AAutomatic control for phonographs playing records of different speedsQUADRACAST SYSTEMS·Filed 1976·Granted Dec 13, 1977·4 cites·6 claims
- 0339US6636042B1Under and above ground, radio frequency driven element, vector display, metal locating systemGEOMETRICS GROUP INC·Filed 2001·Granted Oct 21, 2003·5 cites·15 claims
- 0439US6541976B1Under and above ground, radio frequency driven element, metal locating systemGEOMETRICS GROUP INC·Filed 2000·Granted Apr 1, 2003·5 cites·10 claims
- 0539US3967069ACompatible four channel FM systemMATSUSHITA ELECTRIC CORP·Filed 1974·Granted Jun 29, 1976·4 cites·12 claims
- 0638US3937902ACartridge muting circuitQUADRACAST SYSTEMS·Filed 1974·Granted Feb 10, 1976·4 cites·3 claims
- 0737US3943294AMulti-mono FM systemQUADRACAST SYSTEMS·Filed 1974·Granted Mar 9, 1976·4 cites·4 claims
- 0833US4190737ACompatible four channel FM systemMATSUSHITA ELECTRIC CORP·Filed 1976·Granted Feb 26, 1980·3 cites·4 claims
- 0929US6636043B1Variable resolution vector positional display for use with an underground object locating systemGEOMETRICS GROUP INC·Filed 2001·Granted Oct 21, 2003·0 cites·8 claims
- 1026US5038221ALuminance encoded digital audio systemDORREN LOUIS·Filed 1987·Granted Aug 6, 1991·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →