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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Otto Wittmann — 8 Patents

Basf Se: 8 patents #2,129 of 13,826Top 20%
Bischofswerda, DE: #80 of 447 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Otto Wittmann has been granted 8 US patents while listed as an inventor at Basf Se. The first was granted in 1981 and the most recent in July 1994. Otto Wittmann ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Otto Wittmann in Bischofswerda, DE.

Patents per Year

Patents granted per year, 1981 to 1994Bar chart with a peak of 2 patents in 1994.peak 21981: 1 patents19811984: 1 patents19841985: 1 patents19851987: 1 patents19871989: 1 patents19891991: 1 patents19911994: 2 patents1994

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
5330846 Heat-curable, aqueous synthetic resin mixtures for coating woodworking materials Wolfgang Eisele, Hans Etling, Walter Pfalzgraf, Walter Pitteroff 1994-07-19
5306783 Resin solution for the impregnation of paper webs Uwe Kirchgaessner, Jakob Decher, Christof Jaeckh, Manfred Niessner, Harro Petersen 1994-04-26
5047466 Amino resin solutions having low electrical conductivity Gerd Busse, Jakob Decher, Wolfgang Eisele, Edgar Haeussler 1991-09-10
4814422 Pulverulent aminoplast adhesive resin for wood-base materials having a low formaldehyde emission, its preparation, and a formulated pulverulent aminoplast adhesive resin Hans Diem, Friedrich Kraus, Guenther Matthias, Bruno Maurer 1989-03-21
4684690 Aminoplast adhesive resin powder for wood-based materials or as a paper adhesive, which eliminates little formaldehyde, its preparation, and a formulated aminoplast adhesive resin powder Friedrich Kraus, Guenther Matthias, Hans Diem 1987-08-04
4546039 Process for bonding lignocellulose-containing raw materials with a prepolymer based on a urethane-modified diphenylmethane diisocyanate mixture Heinrich Horacek, Matthias Marx, Johann Mayer 1985-10-08
4458049 Preparation of cocondensates which produce weather-resistant bonding Hans Diem, Robert Fritsch, Heinz Lehnert, Guenther Matthias, Hermann Schatz 1984-07-03
4260532 Aqueous isocyanate emulsions prepared with polyglycol and polymerized unsaturated acid amide Wolfgang Reuther, Adolph Segnitz, Hermann Schatz 1981-04-07