Assignee
RAPPOLD & CO GMBH HERMANN
DE·8 granted patents·109 citations·filing 1975–1995
Top patents by PatentIndex Score
8 records- 0166US4018420ASlide valve for closing a large pressurized gas conveying pipeRAPPOLD & CO GMBH HERMANN·Filed 1975·Granted Apr 19, 1977·13 cites·7 claims
- 0265US4527773AShut-off valve with a seal formed from an elastic stripRAPPOLD & CO GMBH HERMANN·Filed 1983·Granted Jul 9, 1985·24 cites·5 claims
- 0354US5697596AFlap valve with improved actuatorRAPPOLD & CO GMBH HERMANN·Filed 1995·Granted Dec 16, 1997·25 cites·15 claims
- 0454US4337789AShut-off valve for interrupting a flow of a fluid through a pipelineRAPPOLD & CO GMBH HERMANN·Filed 1980·Granted Jul 6, 1982·15 cites·7 claims
- 0554US4313724ACeramic burner for use in an air heaterRAPPOLD & CO GMBH HERMANN·Filed 1980·Granted Feb 2, 1982·12 cites·9 claims
- 0642US4296776AGate valve for use in large size conduitsRAPPOLD & CO GMBH HERMANN·Filed 1980·Granted Oct 27, 1981·13 cites·10 claims
- 0734US4127257AProcess for operating a plurality of regenerative hot blast stoves for supplying hot blast to a blast furnaceRAPPOLD & CO GMBH HERMANN·Filed 1977·Granted Nov 28, 1978·3 cites·1 claims
- 0831US3970109AShutoff and control slideRAPPOLD & CO GMBH HERMANN·Filed 1975·Granted Jul 20, 1976·4 cites·22 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →