Inventor · disambiguated record
Arno Frei
Also filed as: FREI ARNO
3 granted patents·38 citations·filing 1977–1991
71Inventor score
Files withSULZER AG3
Top patents by PatentIndex Score
3 records- 0156US4190104AHeat exchanger having helically wound tube coilsSULZER AG·Filed 1977·Granted Feb 26, 1980·20 cites·14 claims
- 0247US4262515AMethod and apparatus for bending a tubeSULZER AG·Filed 1978·Granted Apr 21, 1981·8 cites·10 claims
- 0340US5228836ARunner for a pumpSULZER AG·Filed 1991·Granted Jul 20, 1993·10 cites·11 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →