Assignee
OPCON INC
US·8 granted patents·205 citations·filing 1975–1989
Top patents by PatentIndex Score
8 records- 0193US4515336ABall and socket mount for optical sensing system source and/or detector devicesOPCON INC·Filed 1983·Granted May 7, 1985·63 cites·12 claims
- 0287US4340137ACant movement and aligning mechanismOPCON INC·Filed 1980·Granted Jul 20, 1982·66 cites·16 claims
- 0374US4065724ABalanced low impedance differential input line preamplifierOPCON INC·Filed 1976·Granted Dec 27, 1977·14 cites·4 claims
- 0472US4851660APhotoelectric compressed analog signal strength indicatorOPCON INC·Filed 1988·Granted Jul 25, 1989·22 cites·18 claims
- 0558US4015117AUnbiased modulated photo sensing systemsOPCON INC·Filed 1975·Granted Mar 29, 1977·8 cites·14 claims
- 0654US4990895AMethod and apparatus for testing photoelectric circuitsOPCON INC·Filed 1989·Granted Feb 5, 1991·18 cites·44 claims
- 0737US4769147AOil reclamation apparatusOPCON INC·Filed 1985·Granted Sep 6, 1988·9 cites·1 claims
- 0836US4931631ALong range, thru-beam photoelectric alignment indicatorOPCON INC·Filed 1988·Granted Jun 5, 1990·5 cites·4 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →