Inventor · disambiguated record
Leonard J. Sieghartner
Also filed as: SIEGHARTNER LEONARD J
11 granted patents·300 citations·filing 1975–1997
92Inventor score
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
- 0284US4173350AFloating sealsROTH ROY E·Filed 1978·Granted Nov 6, 1979·40 cites·9 claims
- 0377US5137418AFloating self-centering turbine impellerROTH CO ROY E·Filed 1990·Granted Aug 11, 1992·45 cites·38 claims
- 0472US3963371AMulti-stage pumpROTH CO ROY E·Filed 1975·Granted Jun 15, 1976·23 cites·19 claims
- 0564US4155559ADeformable seal for rotary mechanismSIEGHARTNER LEONARD J·Filed 1977·Granted May 22, 1979·21 cites·18 claims
- 0663US5238253ARegenerative turbine flow inducer for double or tandem mechanical sealsROTH CO ROY E·Filed 1991·Granted Aug 24, 1993·42 cites·18 claims
- 0756US4479756AMulti-stage pumpROTH CO ROY E·Filed 1983·Granted Oct 30, 1984·17 cites·10 claims
- 0850US5934683ARotary seal assembly having grooved seal facingROTH CO ROY E·Filed 1997·Granted Aug 10, 1999·16 cites·20 claims
- 0941US4299536AMulti-stage pumpsROTH CO ROY E·Filed 1979·Granted Nov 10, 1981·12 cites·22 claims
- 1037US4248571ACentrifugal impellersROTH CO ROY E·Filed 1978·Granted Feb 3, 1981·7 cites·8 claims
- 1135US4178131ACentrifugal impellersROTH ROY E·Filed 1978·Granted Dec 11, 1979·5 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →