Assignee
BIRFIELD TRASMISSIONI
4 granted patents·10 citations·filing 1977–1987
Top patents by PatentIndex Score
4 records- 0132US4947588AGrinding toolBIRFIELD TRASMISSIONI·Filed 1987·Granted Aug 14, 1990·4 cites·6 claims
- 0229US4153035AFlame breaker for industrial furnace heating elementBIRFIELD TRASMISSIONI·Filed 1977·Granted May 8, 1979·4 cites·28 claims
- 0323US4166443AJet pipe burnerBIRFIELD TRASMISSIONI·Filed 1977·Granted Sep 4, 1979·1 cites·2 claims
- 0423US4134720AJet pipe sealBIRFIELD TRASMISSIONI·Filed 1977·Granted Jan 16, 1979·1 cites·4 claims
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