Inventor · disambiguated record
Erwin Hartmann
Also filed as: HARTMANN ERWIN
11 granted patents·2 pending applications·168 citations·filing 1980–2014
90Inventor score
Top patents by PatentIndex Score
13 records- 0191US9689431B2Seal arrangement having a thrower ring for an anti-friction bearingSCHAEFFLER TECHNOLOGIES AG·Filed 2014·Granted Jun 27, 2017·9 cites·12 claims
- 0288US4820154ADental instrument with a tool for treating the teethROEMHILD LUDWIG·Filed 1987·Granted Apr 11, 1989·66 cites·17 claims
- 0383US8240674B2Seal with non-contact adjacent deflector ringsHARTMANN ERWIN·Filed 2009·Granted Aug 14, 2012·9 cites·7 claims
- 0479US8500338B2Steering knuckle with pre-sealingWALTER WILHELM·Filed 2009·Granted Aug 6, 2013·6 cites·11 claims
- 0572US8628248B2Centrifugal ring with collecting channelWALTER WILHEIM·Filed 2010·Granted Jan 14, 2014·6 cites·10 claims
- 0671US4820153AProcess and apparatus for cleaning a toothROEMHILD LUDWIG·Filed 1986·Granted Apr 11, 1989·43 cites·13 claims
- 0766US7624989B2Seal with non-contact adjacent deflector ringsSCHAEFFLER KG·Filed 2004·Granted Dec 1, 2009·8 cites·19 claims
- 0863US8152381B2Rolling bearing comprising a device for withdrawing a liquidWALTER WILHELM·Filed 2007·Granted Apr 10, 2012·2 cites·15 claims
- 0945US2010158423A1Bearing unit, preferably, wheel bearing unit for a motor vehicle, and method for producing a bearing unitSCHAEFFLER KG·Filed 2006·Application pending·0 cites
- 1037US2012207417A1Non-contact sealing ring and sealing arrangementWALTER WILHELM·Filed 2010·Application pending·0 cites
- 1133US4979899AScaler for cleaning teethROEMHILD LUDWIG·Filed 1988·Granted Dec 25, 1990·6 cites·14 claims
- 1233US4412729AVision testing deviceRODENSTOCK OPTIK G·Filed 1980·Granted Nov 1, 1983·9 cites·12 claims
- 1326US4854080AApparatus for sharpening periodontal instrumentsMIKRONA AG·Filed 1988·Granted Aug 8, 1989·4 cites·15 claims
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