Assignee
ROTH CO ROY E
US·9 granted patents·2 pending applications·246 citations·filing 1975–2013
Top patents by PatentIndex Score
11 records- 0189US5525039AHermetically sealed magnetic drive pumpROTH CO ROY E·Filed 1993·Granted Jun 11, 1996·72 cites·23 claims
- 0277US5137418AFloating self-centering turbine impellerROTH CO ROY E·Filed 1990·Granted Aug 11, 1992·45 cites·38 claims
- 0372US3963371AMulti-stage pumpROTH CO ROY E·Filed 1975·Granted Jun 15, 1976·23 cites·19 claims
- 0463US5238253ARegenerative turbine flow inducer for double or tandem mechanical sealsROTH CO ROY E·Filed 1991·Granted Aug 24, 1993·42 cites·18 claims
- 0556US4479756AMulti-stage pumpROTH CO ROY E·Filed 1983·Granted Oct 30, 1984·17 cites·10 claims
- 0650US5934683ARotary seal assembly having grooved seal facingROTH CO ROY E·Filed 1997·Granted Aug 10, 1999·16 cites·20 claims
- 0746US2014086768A1Drain Vent for Petroleum/Chemical Pumping Devices and Methods of Making the SameROTH CO ROY E·Filed 2013·Application pending·0 cites
- 0844US2014097372A1Flow Rate and Pressure Reduction AssemblyROTH CO ROY E·Filed 2013·Application pending·0 cites
- 0941US4299536AMulti-stage pumpsROTH CO ROY E·Filed 1979·Granted Nov 10, 1981·12 cites·22 claims
- 1039US6190119B1Multi-channel regenerative pumpROTH CO ROY E·Filed 1999·Granted Feb 20, 2001·12 cites·13 claims
- 1137US4248571ACentrifugal impellersROTH CO ROY E·Filed 1978·Granted Feb 3, 1981·7 cites·8 claims
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