Inventor · disambiguated record
Roger K. Engel
Also filed as: ENGEL ROGER · ENGEL ROGER K
3 granted patents·118 citations·filing 1985–2003
72Inventor score
Top patents by PatentIndex Score
3 records- 0188US7178555B2Pressure relief valvePLITEK LLC·Filed 2003·Granted Feb 20, 2007·95 cites·8 claims
- 0267US4620247ADiskette spring and diskettePLICON CORP·Filed 1985·Granted Oct 28, 1986·21 cites·22 claims
- 0331US5561574AMethod for manufacturing lifter for a disc cartridge and feed stock thereforPLITEK L L C·Filed 1995·Granted Oct 1, 1996·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →