Inventor · disambiguated record
Niklaus Portmann
Also filed as: PORTMANN NIKLAUS
5 granted patents·27 citations·filing 1985–1992
76Inventor score
Technology areasB23K
Files withELPATRONIC AG5
Top patents by PatentIndex Score
5 records- 0142US5159168ASliding contact roller headELPATRONIC AG·Filed 1991·Granted Oct 27, 1992·9 cites·23 claims
- 0241US5155405AElectrode roller with flexible current transmitting discELPATRONIC AG·Filed 1991·Granted Oct 13, 1992·9 cites·10 claims
- 0332US4641008AApparatus for electrical resistance seam welding by rollersELPATRONIC AG·Filed 1985·Granted Feb 3, 1987·5 cites·14 claims
- 0427US5103070ARail for guiding sheet-metal edges which are to be welded togetherELPATRONIC AG·Filed 1991·Granted Apr 7, 1992·3 cites·8 claims
- 0518US5297790ADriver for feeding thin metal sheets on a can welding machineELPATRONIC AG·Filed 1992·Granted Mar 29, 1994·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →