Inventor · disambiguated record
John M. Carr
Also filed as: CARR JOHN M · CARR JOHN MICHAEL
11 granted patents·358 citations·filing 1975–2021
90Inventor score
Files withDUNCAN ELECTRIC CO INC2EASTERN SPECIALTY COMPANY2PROGRESS RAIL LOCOMOTIVE INC2UTILITY TEST EQUIPMENT COMPANY2ELECTRO MOTIVE DIESEL INC1
Top patents by PatentIndex Score
11 records- 0196US6262569B1Computerized solid state energy meter test system and method of testingUTILITY TEST EQUIPMENT COMPANY·Filed 1997·Granted Jul 17, 2001·220 cites·5 claims
- 0290US6896479B2Turbocharger rotorGEN MOTORS CORP·Filed 2003·Granted May 24, 2005·30 cites·10 claims
- 0378US6945748B2Centrifugal compressor with channel ring defined inlet recirculation channelELECTRO MOTIVE DIESEL INC·Filed 2004·Granted Sep 20, 2005·26 cites·9 claims
- 0477US5821742AComputerized solid state energy meter test system and method of testingUTILITY TEST EQUIPMENT COMPANY·Filed 1994·Granted Oct 13, 1998·37 cites·10 claims
- 0575US4766370ASystem and method for calibrating an energy meterEASTERN SPECIALTY COMPANY·Filed 1984·Granted Aug 23, 1988·31 cites·12 claims
- 0661US11781489B2Gear train jointPROGRESS RAIL LOCOMOTIVE INC·Filed 2021·Granted Oct 10, 2023·0 cites·20 claims
- 0748US10787956B2Turbocharger variable speed controlPROGRESS RAIL LOCOMOTIVE INC·Filed 2018·Granted Sep 29, 2020·0 cites·20 claims
- 0842US10132216B2Crankcase ventilation system for an internal combustion enginePROGRESS RAIL LOCMOTIVE INC·Filed 2016·Granted Nov 20, 2018·0 cites·17 claims
- 0941US4328401AMeter test switchEASTERN SPECIALTY COMPANY·Filed 1980·Granted May 4, 1982·5 cites·26 claims
- 1036US4103261ALaser beam shutter and beam indicatorDUNCAN ELECTRIC CO INC·Filed 1976·Granted Jul 25, 1978·3 cites·5 claims
- 1135US4080567AHeat sensitive abnormal condition detecting and indicating device and methodDUNCAN ELECTRIC CO INC·Filed 1975·Granted Mar 21, 1978·6 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →