Assignee
HELWIG CARBON PRODUCTS INC
US·5 granted patents·112 citations·filing 1990–2019
Top patents by PatentIndex Score
5 records- 0173US5463264AConstant force brush holder assemblyHELWIG CARBON PRODUCTS INC·Filed 1994·Granted Oct 31, 1995·54 cites·5 claims
- 0273US5043619ABrush holder assemblyHELWIG CARBON PRODUCTS INC·Filed 1990·Granted Aug 27, 1991·56 cites·6 claims
- 0343US9853407B2Brush assemblyHELWIG CARBON PRODUCTS INC·Filed 2015·Granted Dec 26, 2017·1 cites·20 claims
- 0435US10942203B2Voltage probe configured to measure voltage on a mechanical device before and after discharging voltage from the mechanical deviceHELWIG CARBON PRODUCTS INC·Filed 2019·Granted Mar 9, 2021·0 cites·20 claims
- 0520USD795192SBrush assemblyHELWIG CARBON PRODUCTS INC·Filed 2015·Granted Aug 22, 2017·1 cites·1 claims
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