Inventor

CARR JOHN M

US9 patents

⚠️ This page may combine multiple inventors who share the name “CARR JOHN M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UTILITY TEST EQUIPMENT COMPANY

2 patents

US6262569B1Jul 17, 2001

Computerized solid state energy meter test system and method of testing

UTILITY TEST EQUIPMENT COMPANY220 citations97

US5821742AOct 13, 1998

Computerized solid state energy meter test system and method of testing

UTILITY TEST EQUIPMENT COMPANY37 citations91

EASTERN SPECIALTY COMPANY

2 patents

US4766370AAug 23, 1988

System and method for calibrating an energy meter

EASTERN SPECIALTY COMPANY31 citations89

US4328401AMay 4, 1982

Meter test switch

EASTERN SPECIALTY COMPANY5 citations59

DUNCAN ELECTRIC CO INC

2 patents

US4103261AJul 25, 1978

Laser beam shutter and beam indicator

DUNCAN ELECTRIC CO INC3 citations61

US4080567AMar 21, 1978

Heat sensitive abnormal condition detecting and indicating device and method

DUNCAN ELECTRIC CO INC6 citations54

ELECTRO MOTIVE DIESEL INC

1 patent

US6945748B2Sep 20, 2005

Centrifugal compressor with channel ring defined inlet recirculation channel

ELECTRO MOTIVE DIESEL INC26 citations91

GEN MOTORS CORP

1 patent

US6896479B2May 24, 2005

Turbocharger rotor

GEN MOTORS CORP30 citations90

PROGRESS RAIL LOCOMOTIVE INC

1 patent

US11781489B2Oct 10, 2023

Gear train joint

PROGRESS RAIL LOCOMOTIVE INC0 citations62