Inventor · disambiguated record
Hartmut Graf
Also filed as: GRAF HARTMUT
4 granted patents·3 pending applications·2 citations·filing 2008–2025
57Inventor score
Top patents by PatentIndex Score
7 records- 0155US2025189025A1Hydrodynamic-mechanical power transmission deviceVOITH PATENT GMBH·Filed 2025·Application pending·0 cites
- 0245US9453567B2Device for transmitting forceGRAF HARTMUT·Filed 2012·Granted Sep 27, 2016·1 cites·20 claims
- 0343US10145456B2Hydrodynamic converter and adjustment device for a converter of this typeVOITH PATENT GMBH·Filed 2014·Granted Dec 4, 2018·0 cites·23 claims
- 0435US2020124153A1Power transmission device and method for operating a power transmission device in a drive train for driving a working machine at a variable speedVOITH PATENT GMBH·Filed 2018·Application pending·0 cites
- 0528US10876612B2Method for operating a drive train for driving a working machine with variable rotation speed and drive trainVOITH PATENT GMBH·Filed 2018·Granted Dec 29, 2020·0 cites·27 claims
- 0628US8266901B2Axial thrust offloading deviceSCHIRLE HANS·Filed 2008·Granted Sep 18, 2012·1 cites·2 claims
- 0725US2013133335A1Power Plant Line Having a Variable-Speed PumpGRAF HARTMUT·Filed 2011·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Hartmut Graf files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →