Inventor · disambiguated record
Frank Hengerer
Also filed as: HENGERER FRANK
4 granted patents·65 citations·filing 1989–1999
78Inventor score
Top patents by PatentIndex Score
4 records- 0178US4913749AProcess for case-hardening rolling bearing elements of low-alloy nickeliferous steelSKF GMBH·Filed 1989·Granted Apr 3, 1990·23 cites·11 claims
- 0259US6306230B1Process for the production of hardened parts of steelSKF GMBH·Filed 1999·Granted Oct 23, 2001·12 cites·3 claims
- 0353US5672217AMethod for producing machine elements of steelSKF GMBH·Filed 1992·Granted Sep 30, 1997·13 cites·8 claims
- 0448US5261975ASteel for ball and roller bearingsSKF AB·Filed 1992·Granted Nov 16, 1993·17 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →