Inventor · disambiguated record
Josef Birkmann
Also filed as: BIRKMANN JOSEF
4 granted patents·55 citations·filing 1987–1993
76Inventor score
Top patents by PatentIndex Score
4 records- 0180US5474250AWinding device for magnetic tapesBASF MAGNETICS GMBH·Filed 1993·Granted Dec 12, 1995·29 cites·3 claims
- 0258US5279470AWinding mandrel tensioning meansBASF MAGNETICS GMBH·Filed 1992·Granted Jan 18, 1994·14 cites·2 claims
- 0340US4805848AClamping device for the hubs of reels of magnetic tapeAGFA GEVAERT AG·Filed 1987·Granted Feb 21, 1989·5 cites·4 claims
- 0436US5085110ACutting device for the longitudinal cutting of foil lengthsAGFA GEVAERT AG·Filed 1990·Granted Feb 4, 1992·7 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →