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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Werner Biffar — 4 Patents

Basf Se: 4 patents #3,853 of 13,826Top 30%
Bischofswerda, DE: #142 of 447 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Werner Biffar has been granted 4 US patents while listed as an inventor at Basf Se. The first was granted in 1987 and the most recent in January 1990. Werner Biffar ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Werner Biffar in Bischofswerda, DE.

Patents per Year

Patents granted per year, 1987 to 1990Bar chart with a peak of 2 patents in 1987.peak 21987: 2 patents19871989: 1 patents19891990: 1 patents1990

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4895711 Preparation of hydroxylammonium salts Werner Steigleiter, Franz-Josef Weiss 1990-01-23
4859642 Fixed-bed catalyst structure obtained using honeycomb elements Wolfgang Hoelderich, Michael Kroener, Peter Kroetzsch 1989-08-22
4711930 Honeycomb catalyst and its preparation Wolfgang Hoelderich, Matthias Irgang, Wolf D. Mross, Michael Kroener, Eberhard Ambach 1987-12-08
4659683 Regeneration of inactive and poisoned platinum catalysts Otto Hofstadt, Klaus Kartte, Erwin Thomas, Franz-Josef Weiss 1987-04-21