Peter Ehrmann — 5 Patents at Firma Carl Freudenberg

Peter Ehrmann has been granted 5 US patents while listed as an inventor at Firma Carl Freudenberg. The first was granted in 1984 and the most recent in August 1992. Peter Ehrmann ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Peter Ehrmann in Hemsbach, DE.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
5139275	Shaft seal	Rolf Vogt, Gerhard Kilthau	1992-08-18
4886281	Sealing ring having a sealing surfacer with a recessional annular projection	Karl-Heinz Spies, Rolf Vogt	1989-12-12
4553763	Seal ring having an axis parallel intermediate ring	—	1985-11-19
4447064	Radial shaft sealing ring having a sealing lip and liquid deflectors	Dieter Fuchs, Karl-Heinrich Spies	1984-05-08
4427205	Radial shaft sealing ring	Helmut Holzer	1984-01-24

Peter Ehrmann — 5 Patents

Issued Patents All Time

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