Inventor · disambiguated record
Helmut Letzel
Also filed as: LETZEL HELMUT · LETZEL HELMUT ROLAND
4 granted patents·1 pending application·59 citations·filing 1996–2017
75Inventor score
Top patents by PatentIndex Score
5 records- 0175US6539760B1Monitoring deviceSCHMERSAL K A GMBH & CO·Filed 2000·Granted Apr 1, 2003·28 cites·18 claims
- 0273US11045975B2Extrusion components for honeycomb bodiesCORNING INC·Filed 2017·Granted Jun 29, 2021·1 cites·22 claims
- 0353US6283514B1Apparatus for monitoring and controlling access to a restricted areaSCHMERSAL K A GMBH & CO·Filed 1999·Granted Sep 4, 2001·26 cites·14 claims
- 0440US2020269466A1Apparatus for extruding honeycomb bodies, methods of assembling apparatus, and methods of manufacturing honeycomb bodiesCORNING INC·Filed 2016·Application pending·0 cites
- 0530US5896783ASafety switch deviceSCHMERSAL K A GMBH & CO·Filed 1996·Granted Apr 27, 1999·4 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →