Inventor · disambiguated record
Hermann Landgraf
Also filed as: LANDGRAF HERMANN
16 granted patents·2 pending applications·431 citations·filing 1972–2016
95Inventor score
Top patents by PatentIndex Score
18 records- 0192US4874314ASocket to clampingly hold dental toolsSIEMENS AG·Filed 1987·Granted Oct 17, 1989·74 cites·16 claims
- 0287US5423231AFoot control mechanism for a dental apparatusSIEMENS AG·Filed 1993·Granted Jun 13, 1995·59 cites·16 claims
- 0381US4482322ADevice for surface treatment of teethSIEMENS AG·Filed 1983·Granted Nov 13, 1984·36 cites·16 claims
- 0479US4462803ADevice for cleaning teethSIEMENS AG·Filed 1982·Granted Jul 31, 1984·52 cites·7 claims
- 0573US9433475B2Laser handpiece, exchangeable fiber-optic insert and control unit thereforBIERBAUM THOMAS·Filed 2010·Granted Sep 6, 2016·10 cites·8 claims
- 0673USD342720SFoot switchSIEMENS AG·Filed 1992·Granted Dec 28, 1993·17 cites·1 claims
- 0771US4460337ADental handpieceSIEMENS AG·Filed 1982·Granted Jul 17, 1984·36 cites·29 claims
- 0867US4681540ADental handpiece arrangementSIEMENS AG·Filed 1985·Granted Jul 21, 1987·37 cites·19 claims
- 0964US4278907AD.C. Subfractional horsepower motor with flux shunt for variable RPM adjustmentSIEMENS AG·Filed 1979·Granted Jul 14, 1981·19 cites·10 claims
- 1056US4255143ADevice for releasably connecting two parts of a dental handpiece togetherSIEMENS AG·Filed 1979·Granted Mar 10, 1981·17 cites·13 claims
- 1155US4237393ADrive motor for a dental handpieceSIEMENS AG·Filed 1978·Granted Dec 2, 1980·16 cites·10 claims
- 1250US5433604AMedical instrument having an internally-cooled toolSIEMENS AG·Filed 1994·Granted Jul 18, 1995·24 cites·17 claims
- 1348US5655907ARotatable tool suitable for high speed driveSIEMENS AG·Filed 1995·Granted Aug 12, 1997·12 cites·10 claims
- 1448US4647081ABall catch coupling for releasably connecting two parts permitting relative rotation of the parts when connectedSIEMENS AG·Filed 1985·Granted Mar 3, 1987·14 cites·7 claims
- 1548US2016331458A1Laser handpiece, exchangeable fiber-optic insert and control unit thereforSIRONA DENTAL SYSTEMS GMBH·Filed 2016·Application pending·0 cites
- 1638US2002077528A1Manual instrument for medical and dental diagnosticsFiled 2001·Application pending·0 cites
- 1736US3943919AElectrical tooth pulp tester having tiltable headSIEMENS AG·Filed 1972·Granted Mar 16, 1976·4 cites·7 claims
- 1824US4198755ADental handpieceSIEMENS AG·Filed 1977·Granted Apr 22, 1980·4 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →