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USPTO Patent Rankings Data through Dec 31, 2025
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Kurt Schefer — 14 Patents

RWRieter Machine Works: 9 patents #14 of 201Top 7%
MAMaschinenfabrik Rieter Ag: 3 patents #69 of 318Top 25%
RWReiter Machine Works: 1 patents #1 of 11Top 10%
SLSulzer Brothers Limited: 1 patents #172 of 443Top 40%
Winterthur, CH: #29 of 771 inventorsTop 4%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Kurt Schefer has been granted 14 US patents while listed as an inventor at Rieter Machine Works. The first was granted in 1980 and the most recent in May 2000. Kurt Schefer ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Kurt Schefer in Winterthur, CH.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
6059217 Winding apparatus for endless threads Adrian Ludwig, Roland Schenk 2000-05-09
5318232 Method and apparatus for transferring a thread from a full package to an empty tube Peter Busenhart, Ruedi Schneeberger, Beat Horler 1994-06-07
4828190 Pivot mechanism for a winder chuck 1989-05-09
4762284 Enclosures for high-speed winders Adolf Flueli, Heinz Oswald 1988-08-09
4741485 Winder layout Adolf Flueli, Claudio Molteni, Jurg Neff, Heinz Oswald, Beat Ruf 1988-05-03
4739940 Method and apparatus of forming an overwound transfer tail Adolf Flueli, Heinz Oswald 1988-04-26
4739694 Apparatus for performing automatic changeover of winding of a thread in a thread winding machine and including a piston and cylinder unit for a thread winding machine Adolf Flueli, Heinz Oswald 1988-04-26
4709866 Thread guiding and screening element for use in filament winder 1987-12-01
4641793 Thread winding machine and method of performing automatic changeover of winding of a thread Adolf Flueli, Heinz Oswald 1987-02-10
4598876 Winding machine for filament packages equipped with package screening means 1986-07-08
4497450 Filament winding machine Kurt Salvisberg 1985-02-05
4309000 Doffer mechanisms Peter Flueckiger 1982-01-05
4298171 Winding apparatus for endless filaments having an automatic bobbin tube changer Peter Fluckiger 1981-11-03
4213573 Air coupling Jakob Fluck 1980-07-22