Assignee
SOUTHWEST UTILITIES INC
3 granted patents·17 citations·filing 1978–1979
Top patents by PatentIndex Score
3 records- 0150US4329543ACommunication systemSOUTHWEST UTILITIES INC·Filed 1979·Granted May 11, 1982·7 cites·15 claims
- 0239US4308427AHands-free talk-back intercommunication systemSOUTHWEST UTILITIES INC·Filed 1979·Granted Dec 29, 1981·4 cites·13 claims
- 0339US4194230AHazardous voltage protection circuitrySOUTHWEST UTILITIES INC·Filed 1978·Granted Mar 18, 1980·6 cites·14 claims
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