Inventor · disambiguated record
John Griffin
Also filed as: GRIFFIN JOHN · GRIFFIN JOHN T
11 granted patents·2 pending applications·322 citations·filing 1978–2015
91Inventor score
Files withFRAZER INC2GEN INSTR CORP JERROLD COMMUNI2GEN INSTRUMENT CORP2TELECOMM SYSTEMS INC2ENVIROTECH CORP1
Top patents by PatentIndex Score
13 records- 0193US4815129AVideo encryption systemGEN INSTRUMENT CORP·Filed 1985·Granted Mar 21, 1989·113 cites·30 claims
- 0287US5321748AMethod and apparatus for television signal scrambling using block shufflingGEN INSTR CORP JERROLD COMMUNI·Filed 1992·Granted Jun 14, 1994·95 cites·22 claims
- 0371US5606612AMethod and apparatus for television signal scrambling using a line expansion techniqueGEN INSTR CORP JERROLD COMMUNI·Filed 1994·Granted Feb 25, 1997·32 cites·37 claims
- 0465US9208346B2Persona-notitia intellection codifierTELECOMM SYSTEMS INC·Filed 2013·Granted Dec 8, 2015·1 cites·15 claims
- 0563US7293532B2Heavy oil extraction systemGOODFIELD ENERGY CORP·Filed 2005·Granted Nov 13, 2007·4 cites·20 claims
- 0662US4785227AMobile emergency medical vehicleFRAZER INC·Filed 1987·Granted Nov 15, 1988·35 cites·12 claims
- 0753US4672296AMobile emergency medical vehicle with auxiliary engine/generator providing AC/DC outputFRAZER INC·Filed 1986·Granted Jun 9, 1987·31 cites·9 claims
- 0851USD274801STracked vehicle for off road useLOGAN MFG·Filed 1981·Granted Jul 24, 1984·5 cites·1 claims
- 0949USD262973SMining vehicleENVIROTECH CORP·Filed 1978·Granted Feb 9, 1982·5 cites·1 claims
- 1044US2016085991A1Persona-Notitia Intellection CodifierTELECOMM SYSTEMS INC·Filed 2015·Application pending·0 cites
- 1139US6462479B1Vehicle headlamp systemFiled 2001·Granted Oct 8, 2002·0 cites·12 claims
- 1239US2002181244A1Vehicle headlamp systemFiled 2002·Application pending·0 cites
- 1330US6208737B1Method and apparatus for television signal scrambling using the replacement of synchronizing and color subcarrier signals with an alternative time base inherent in a QPSK audio subcarrierGEN INSTRUMENT CORP·Filed 1998·Granted Mar 27, 2001·1 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →