Inventor · disambiguated record
Frank Nathem
Also filed as: NATHEM FRANK
2 granted patents·3 pending applications·1 citations·filing 2013–2018
31Inventor score
Technology areasF16J
Top patents by PatentIndex Score
5 records- 0158US9671019B2Piston ring with a periodically varying grooveFEDERAL MOGUL BURSCHEID GMBH·Filed 2013·Granted Jun 6, 2017·1 cites·10 claims
- 0248US10436323B2Piston ring having a groove sealFED MOGUL BURSCHEID GMBH·Filed 2016·Granted Oct 8, 2019·0 cites·14 claims
- 0340US2015292620A1Piston ring with varying apex linesFEDERAL MOGUL BURSCHEID GMBH·Filed 2013·Application pending·0 cites
- 0437US2018274675A1Piston ring with varying apex linesFED MOGUL BURSCHEID GMBH·Filed 2018·Application pending·0 cites
- 0534US2016069456A1Piston ring having varying attributesFEDERAL MOGUL FRIEDBERG GMBH·Filed 2014·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →