Assignee
GROB ERNST FA
CH·20 granted patents·1 pending application·171 citations·filing 1979–2022
Top patents by PatentIndex Score
21 records- 0176US10655693B2Manufacturing method for a composite brake disc as well as a corresponding composite brake discGROB ERNST FA·Filed 2016·Granted May 19, 2020·2 cites·14 claims
- 0270US10072718B2Composite brake disc and method and apparatus for manufacture of the sameGROB ERNST FA·Filed 2014·Granted Sep 11, 2018·2 cites·13 claims
- 0367US5471858AApparatus and process for the production of a hollow workpiece being profiled in a straight or helical manner relative to the workpiece axisGROB ERNST FA·Filed 1993·Granted Dec 5, 1995·18 cites·4 claims
- 0466US5001916AMethod for the calibrated cross-section reduction of a workpiece rotating during such method.GROB ERNST FA·Filed 1989·Granted Mar 26, 1991·24 cites·6 claims
- 0564US6345526B1Punching and stamping machine and method of making parts using sameGROB ERNST FA·Filed 2000·Granted Feb 12, 2002·8 cites·32 claims
- 0664US4872250AMethod for fabricating a dished hollow body possessing a linear or helical inner toothingGROB ERNST FA·Filed 1987·Granted Oct 10, 1989·24 cites·11 claims
- 0760US6089065AProcess and arrangement for the cold forming of hollow workpiecesGROB ERNST FA·Filed 1998·Granted Jul 18, 2000·21 cites·18 claims
- 0856US9174291B2Apparatus and method for manufacturing thick-walled hollow wheels having an internal gear toothingGROB ERNST FA·Filed 2013·Granted Nov 3, 2015·1 cites·22 claims
- 0954US7874760B2Tooth profile of a spline shaftGROB ERNST FA·Filed 2004·Granted Jan 25, 2011·6 cites·24 claims
- 1052US12179254B2Apparatus and method for profiling workpieces by cold formingGROB ERNST FA·Filed 2019·Granted Dec 31, 2024·0 cites·18 claims
- 1152US7861572B2Method and device for making at least partly profiled tubesGROB ERNST FA·Filed 2003·Granted Jan 4, 2011·6 cites·13 claims
- 1250US4796345AMethod of fabricating a rim gear, such as a starter rim gear made of sheet metalGROB ERNST FA·Filed 1987·Granted Jan 10, 1989·13 cites·4 claims
- 1349US7955020B2Grooved profile for a hub shaft connectionGROB ERNST FA·Filed 2004·Granted Jun 7, 2011·2 cites·28 claims
- 1448US7562549B2Device and method for producing tooth-like profiled sections on workpiecesGROB ERNST FA·Filed 2004·Granted Jul 21, 2009·3 cites·20 claims
- 1548US5355706AProcess for the production of a hollow workpiece being profiled at least internally in a straight or helical manner relative to the workpiece axisGROB ERNST FA·Filed 1993·Granted Oct 18, 1994·10 cites·7 claims
- 1646US11498114B2Thin-walled hollow wheels with internal and external toothing, and apparatus and method for manufacturing the sameGROB ERNST FA·Filed 2019·Granted Nov 15, 2022·0 cites·18 claims
- 1746US4307592ACold rolling method and cold rolling apparatusGROB ERNST FA·Filed 1979·Granted Dec 29, 1981·9 cites·7 claims
- 1845US5765419AMethod and apparatus for a rolling of hollow articlesGROB ERNST FA·Filed 1996·Granted Jun 16, 1998·12 cites·13 claims
- 1944US2024261840A1Device and method for the cold-forming profiling of workpiecesGROB ERNST FA·Filed 2022·Application pending·0 cites
- 2041US4388818AMethod and apparatus for fabricating precision teethGROB ERNST FA·Filed 1981·Granted Jun 21, 1983·8 cites·11 claims
- 2128US5546781AProcess for the production of a toothed rack via cold forming, the rack produced thereby, and an apparatus for practicing the processGROB ERNST FA·Filed 1994·Granted Aug 20, 1996·2 cites·12 claims
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