Inventor · disambiguated record
Eric Federspiel
Also filed as: FEDERSPIEL ERIC
3 granted patents·61 citations·filing 1989–1991
73Inventor score
Files withGAZ DE FRANCE3
Top patents by PatentIndex Score
3 records- 0155US4918292AProcess and machine for the welding together of plastic parts processing a built-in windingGAZ DE FRANCE·Filed 1989·Granted Apr 17, 1990·20 cites·5 claims
- 0249US5207533AProcess and device for replacing an underground pipeGAZ DE FRANCE·Filed 1991·Granted May 4, 1993·30 cites·17 claims
- 0340US5086213ADevice for detecting, during welding, variation in the physical state of the plastic material in a coupling piece of joining pipesGAZ DE FRANCE·Filed 1989·Granted Feb 4, 1992·11 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →