Inventor · disambiguated record
Rolf Drucktenhengst
Also filed as: DRUCKTENHENGST ROLF
4 granted patents·122 citations·filing 1982–2011
77Inventor score
Technology areasF16J
Top patents by PatentIndex Score
4 records- 0190US4432557ACassette sealFREUDENBERG CARL FA·Filed 1982·Granted Feb 21, 1984·63 cites·9 claims
- 0271US5895052AShaft sealing deviceFREUDENBERG CARL FA·Filed 1997·Granted Apr 20, 1999·35 cites·16 claims
- 0361US5645283ARadial shaft seal having dust lip with notchesFREUDENBERG CARL·Filed 1996·Granted Jul 8, 1997·24 cites·8 claims
- 0434US9719597B2Sealing ringDRUCKTENHENGST ROLF·Filed 2011·Granted Aug 1, 2017·0 cites·12 claims
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