Arend Werner has been granted 10 US patents while listed as an inventor at Basf Se . The first was granted in 1987 and the most recent in February 1995. Arend Werner ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Arend Werner in Ludwigshafen, DE.
Patents per Year Patents granted per year, 1987 to 1995 Bar chart with a peak of 4 patents in 1990. peak 4 1987: 1 patents 1987 1988: 1 patents 1988 1989: 1 patents 1989 1990: 4 patents 1990 1991: 1 patents 1991 1992: 1 patents 1992 1995: 1 patents 1995
Issued Patents All Time
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Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
5387402 Contact reactor for a quasi-isothermal catalytic oxidation of SO.sub.2 to SO.sub.3 and method of operating same Michael Tacke , Peter Ahrens , Hugo Grimm , Heinz Neumann , Egon Winkler +2 more 1995-02-07
5084319 Disk-shaped magnetic recording media, their production and information stores containing these recording media Hartmut Hibst , Joachim Hack , Heinrich Mannsperger , Michael Hitzfeld , Werner Grau +2 more 1992-01-28
4997675 Production of magnetic recording media for perpendicular recording Hartmut Hibst , Erich Haedicke 1991-03-05
4954422 Recording material containing a layer of polymer particles and a superimposed metallic layer Josef Lamprecht , Gregor Ley , Helmut Barzynski 1990-09-04
4948281 Keyboard protected against vandalism and spill — 1990-08-14
$14,475,000
4937171 Photosensitive recording material Josef Lamprecht , Gregor Ley , Helmut Barzynski 1990-06-26
4900397 Production of magnetic recording media Hartmut Hibst , Erich Haedicke , Johann Kronenbitter 1990-02-13
4830465 Irreversible optical recording media and fabrication thereof Hartmut Hibst , Helmut Barzynski 1989-05-16
4766021 Optical recording medium Hartmut Hibst , Juergen Petermann 1988-08-23
4670332 Irreversible optical medium for information storage, and its production Hartmut Hibst , Klaus D. Schomann 1987-06-02
