Helmut Lewin has been granted 7 US patents while listed as an inventor at Basf Se . The first was granted in 1980 and the most recent in April 1993. Helmut Lewin ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Helmut Lewin in Frankenthal (Pfalz), DE.
Patents per Year Patents granted per year, 1980 to 1993 Bar chart with a peak of 4 patents in 1980. peak 4 1980: 4 patents 1980 1981: 1 patents 1981 1991: 1 patents 1991 1993: 1 patents 1993
Issued Patents All Time
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Showing 1–7 of 7 patents
Patent # Title Co-Inventors Date
5201586 Arrangement for the dynamic compensation of eccentricities of solids of rotation Clifton Zimmermann , Norbert Holl , Juergen Wippel 1993-04-13
5019704 Measuring circuit for detecting measurement signals Clifton Zimmermann , Heribert Kuerten 1991-05-28
4276575 Tape guide for high-speed tape transport apparatus Klaus Schoettle , Werner Hoffmann , Eduard Kaemmer , Klaus Boehlke 1981-06-30
4225099 Tape transport mechanism Klaus Schoettle , Werner Hoffmann , Peter Dobler , Lothar Gliniorz 1980-09-30
4213222 Cleaning apparatus for a web of plastics film having a magnetic coating Klaus Schoettle , Peter Dobler , Eberhard Koester 1980-07-22
4210266 Device for ejecting a loop of leader tape from a magnetic tape cassette Klaus Schoettle , Peter Dobler , Lothar Gliniorz , Dieter Gaiser 1980-07-01
4201356 Cartridge arrangement comprising an adapter Klaus Schoettle , Karl Uhl , Heinrich Wittkamp , Peter Dobler 1980-05-06
