Inventor · disambiguated record
Gerhard Zwirner
Also filed as: ZWIRNER GERHARD
4 granted patents·49 citations·filing 1981–1986
76Inventor score
Files withHAPPICH GMBH GEBR4
Top patents by PatentIndex Score
4 records- 0166US4411467AFoil covering layer for sun visorHAPPICH GMBH GEBR·Filed 1981·Granted Oct 25, 1983·26 cites·12 claims
- 0235US4696510ASwivel bearing for automobile sun visorsHAPPICH GMBH GEBR·Filed 1986·Granted Sep 29, 1987·9 cites·7 claims
- 0332US4743328AMethod and apparatus for manufacturing a cushioning memberHAPPICH GMBH GEBR·Filed 1986·Granted May 10, 1988·6 cites·13 claims
- 0431US4719136AHigh frequency weldable textile materialHAPPICH GMBH GEBR·Filed 1986·Granted Jan 12, 1988·8 cites·50 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →