Assignee
ROCHESTER INSTR SYSTEMS INC
US·6 granted patents·148 citations·filing 1974–1995
Top patents by PatentIndex Score
6 records- 0185US4437059AWattmeterROCHESTER INSTR SYSTEMS INC·Filed 1980·Granted Mar 13, 1984·60 cites·19 claims
- 0267US3959724AElectronic wattmeterROCHESTER INSTR SYSTEMS INC·Filed 1974·Granted May 25, 1976·20 cites·13 claims
- 0366US5691628ARegulation of current or voltage with PWM controllerROCHESTER INSTR SYSTEMS INC·Filed 1995·Granted Nov 25, 1997·36 cites·28 claims
- 0457US4001797AAnnunciator system with direct field wiringROCHESTER INSTR SYSTEMS INC·Filed 1974·Granted Jan 4, 1977·15 cites·8 claims
- 0550US3959786AIsolated two-wire transmitterROCHESTER INSTR SYSTEMS INC·Filed 1975·Granted May 25, 1976·10 cites·14 claims
- 0638US4030014ACurrent-to-current electrical isolatorROCHESTER INSTR SYSTEMS INC·Filed 1975·Granted Jun 14, 1977·7 cites·7 claims
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