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USPTO Patent Rankings Data through Dec 31, 2025
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Klaus Pfleger — 9 Patents

Basf Se: 8 patents #2,129 of 13,826Top 20%
Wesseling, DE: #7 of 88 inventorsTop 8%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Klaus Pfleger has been granted 9 US patents while listed as an inventor at Basf Se. The first was granted in 1980 and the most recent in December 1994. Klaus Pfleger ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Klaus Pfleger in Wesseling, DE.

Patents per Year

Patents granted per year, 1980 to 1994Bar chart with a peak of 2 patents in 1988.peak 21980: 1 patents19801981: 1 patents19811986: 1 patents19861988: 2 patents19881989: 1 patents19891991: 1 patents19911994: 2 patents1994

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5376740 Preparation of copolymers of ethylene with acrylates or acrylic acid Siegfried Schiller, Gerhard Arnold 1994-12-27
5376739 Preparation of copolymers of ethylene with acrylic esters Gerhard Arnold, Siegfried Schiller, Herbert Mueller 1994-12-27
4996026 Separation system and reducing the emission of solids in pressure relief processes in high pressure polymerization reactors Friedrich Kanne, Hans Glomb, Gerhard Arnold, Klaus Boettcher, Siegfried Kursawe 1991-02-26
4804725 Reduction of the emission of hydrocarbons in pressure-reduction processes in high pressure polymerization reactors Friedrich Kanne, Franz G. Mietzner, Siegfried Kursawe, Klaus Boettcher, Gerhard Arnold 1989-02-14
4794004 Preparation of copolymers of ethylene with vinyl esters in a tubular reactor at above 500 bar Klaus Boettcher, Oskar Buechner, Friedrich Kanne, Siegfried Kursawe 1988-12-27
4788265 Preparation of copolmers of ethylene with acrylic acid esters in a tubular reactor at above 500 bar Klaus Boettcher, Oskar Buechner, Friedrich Kanne, Siegfried Kursawe, Wieland Zacher 1988-11-29
4579918 Preparation of copolymers of ethylene with carboxyl-containing comonomers in a 2-zone reactor under more than 500 bar Werner Metzger, Franz Brandstetter, Klaus Boettcher 1986-04-01
4260722 Production of ethylene copolymers Wieland Zacher, Klaus Boettcher, Ronald Skorczyk, Oskar Buechner, Franz G. Mietzner 1981-04-07
4217431 Manufacture of ethylene copolymers Wieland Zacher, Klaus Boettcher, Ronald Skorczyk, Oskar Buechner 1980-08-12