Inventor · disambiguated record
Ulf Christoffer
Also filed as: CHRISTOFFER ULF
7 granted patents·5 pending applications·15 citations·filing 2007–2019
76Inventor score
Files withOERLIKON FRICTION SYSTEMS GERMANY GMBH7CHRISTOFFER ULF2SULZER FRICTION SYSTEMS GERMANY GMBH2SULZER EUROFLAMM GERMANY GMBH1
Top patents by PatentIndex Score
12 records- 0178US9400019B2Friction ring, synchronizer unit, and gear changing transmission for a vehicleSULZER FRICTION SYSTEMS (GERMANY) GMBH·Filed 2013·Granted Jul 26, 2016·7 cites·20 claims
- 0271US8342307B2Synchronizing ringSULZER EUROFLAMM GERMANY GMBH·Filed 2007·Granted Jan 1, 2013·6 cites·18 claims
- 0358US9863484B2Friction ring, synchronizer ring, synchronizing unit as well as a variable gear transmission for a vehicleOERLIKON FRICTION SYSTEMS (GERMANY) GmbH·Filed 2014·Granted Jan 9, 2018·1 cites·10 claims
- 0454US2019323565A1Assembly for a synchronization unit of a gear-changing transmissionOERLIKON FRICTION SYSTEMS GERMANY GMBH·Filed 2019·Application pending·0 cites
- 0548US9133894B2Synchronizing ring and gear changing transmission for a vehicleCHRISTOFFER ULF·Filed 2009·Granted Sep 15, 2015·1 cites·15 claims
- 0646US2016377125A1Assembly for a synchronization unit of a gear-changing transmissionOERLIKON FRICTION SYSTEMS (GERMANY) GmbH·Filed 2016·Application pending·0 cites
- 0743US10253824B2Friction ring for a synchronization unitOERLIKON FRICTION SYSTEMS GERMANY GMBH·Filed 2016·Granted Apr 9, 2019·0 cites·20 claims
- 0840US10612603B2Synchronizing device as well as a gear changing transmission for a vehicleOERLIKON FRICTION SYSTEMS GERMANY GMBH·Filed 2017·Granted Apr 7, 2020·0 cites·11 claims
- 0939US2013341148A1Synchronizer ringSULZER FRICTION SYSTEMS GERMANY GMBH·Filed 2013·Application pending·0 cites
- 1038US2009133982A1Synchronising Ring For A Synchronising Apparatus, A Friction Lining Blank And Also A Method For The Manufacture Of A Synchronising RingCHRISTOFFER ULF·Filed 2008·Application pending·0 cites
- 1134US10626928B2Assembly for a synchronization unit of a variable ratio gear transmissionOERLIKON FRICTION SYSTEMS GERMANY GMBH·Filed 2017·Granted Apr 21, 2020·0 cites·18 claims
- 1233US2018058514A1Synchronizing device as well as a gear changing transmission for a vehicleOERLIKON FRICTION SYSTEMS GERMANY GMBH·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →