Inventor · disambiguated record
Matthias Steffen
Also filed as: STEFFEN MATTHIAS
4 granted patents·60 citations·filing 1991–2020
74Inventor score
Top patents by PatentIndex Score
4 records- 0181US5072820AEscalator handrail stop deviceOTIS ELEVATOR CO·Filed 1991·Granted Dec 17, 1991·36 cites·6 claims
- 0261US5096040ADetection of missing steps in an escalator or moving walkOTIS ELEVATOR CO·Filed 1991·Granted Mar 17, 1992·20 cites·5 claims
- 0357US7614490B2Passenger conveyor handrail having a gripping surface with a generally circular cross-sectionOTIS ELEVATOR CO·Filed 2005·Granted Nov 10, 2009·4 cites·18 claims
- 0446US11730527B2Surgical instrument for tightening a bone fixation member around boneSTRYKER EUROPEAN OPERATIONS LTD·Filed 2020·Granted Aug 22, 2023·0 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →