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USPTO Patent Rankings Data through Dec 31, 2025
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Hermann Roller — 21 Patents

Basf Se: 16 patents #948 of 13,826Top 7%
BGBasf Magnetics Gmbh: 4 patents #18 of 147Top 15%
Ludwigshafen, DE: #146 of 1,722 inventorsTop 9%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Hermann Roller has been granted 21 US patents while listed as an inventor at Basf Se. The first was granted in 1982 and the most recent in August 1996. Hermann Roller ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Hermann Roller in Ludwigshafen, DE.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
5543226 Magnetic recording media Michael Bobrich, August Lehner, Rudolf Suettinger, Ria Kress, Norbert Schneider +6 more 1996-08-06
5470650 Magnetic recording media August Lehner, Norbert Schneider, Werner Balz, Werner Lenz, Albert Kohl 1995-11-28
5419959 Magnetic recording medium having an infra-red light transparent balkcoat layer Peter Heilmann, Michael Hitzfeld, Dieter Stockburger, Werner Latzel, Reinhold Baur +4 more 1995-05-30
5346761 Flexible magnetic recording media having a backing coating containing a polyurethane resin having a phosphate group and precipated silica Peter Engelhardt, Reinhold Baur, Michael Bobrich, Werner Latzel, Werner Lenz +1 more 1994-09-13
5330784 Process of producing a flexible magnetic recording media having a backing coating Michael Bobrich, Gregor Brodt 1994-07-19
5217810 Magnetic recording medium having a magnetic layer containing chromium dioxide particles and linolenic acid August Lehner, Rudolf Suettinger, Michael Bobrich, Hermann Dikow, Werner Lenz +3 more 1993-06-08
5130202 Magnetic recording medium containing an isocyanate-free branched thermoplastic polyurethane binder resin with urea groups at the chain ends Uwe Keppeler, Michael Bobrich, Guenter Heil, August Lehner, Werner Lenz +1 more 1992-07-14
5120608 Magnetic recording media comprising a polyurethane binder resin containing perfluoro groups Michael Bobrich, August Lehner, Albert Kohl, Rudolf Suettinger, Uwe Keppeler +3 more 1992-06-09
5085889 Process for the preparation of magnetic particle dispersions using ball mills and grinding media Horst Platz, Peter Engelhardt, Friedrich Sommermann, Albert Kohl, Juergen Klausmann +2 more 1992-02-04
5082737 Magnetic recording media having a branched thermoplastic polyurethane binder containing a polysiloxane component in the main chain Michael Bobrich, August Lehner, Uwe Keppeler, Rudolf Suettinger, Werner Loch +2 more 1992-01-21
5075179 Magnetic recording media August Lehner, Rudolf Suettinger, Michael Bobrich, Hermann Dikow, Werner Lenz +3 more 1991-12-24
5064721 Magnetic recording media August Lehner, Albert Kohl, Werner Lenz, Ludwig Kreitner, Helmut Kopke +2 more 1991-11-12
4895764 Magnetic recording media August Lehner, Albert Kohl, Michael Bobrich, Peter Richter, Werner Lenz +2 more 1990-01-23
4775553 Production of magnetic recording media Jenoe Kovacs, Peter Engelhardt, Lothar Schwarz, Peter Nagel 1988-10-04
4656093 Magnetic recording media August Lehner, Albert Kohl, Werner Balz, Eerhard Koester, Friedrich Sommermann 1987-04-07
4645723 Production of magnetic recording media possessing a backing coating, and magnetic recording media thus produced Milena Melzer, Norbert Schneider, Horst Fitterer, Wulf Munzner 1987-02-24
4597990 Preparation of magnetic recording media Joachim Hack, Uwe Woweries, August Lehner, Werner Grau, Peter Nagel +1 more 1986-07-01
4581296 Magnetic recording media Werner Balz, Jenoe Kovacs, Wulf Muenzner 1986-04-08
4567108 Magnetic recording media August Lehner, Helmut Kopke, Werner Balz, Werner Grau, Eberhard Koester +1 more 1986-01-28
4534999 Production of magnetic recording media having a backing coating August Lehner, Joachim Hack, Werner Grau, Werner Balz, Reinhold Baur 1985-08-13
4360377 Ferromagnetic metal particles, consisting essentially of iron and carrying a surface coating, and their production Werner Steck, Wilhelm Sarnecki, Werner Balz 1982-11-23