Inventor · Mannheim, DE

Claus Hechler

33Patents
5h-index
53Co-inventors
72Inventor score

Filing activity: Mar 20, 1991 → Jun 17, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US7238827B2 Preparation of at least one partial oxidation and/or ammoxidation product of propylene Emerging Cross-Sectional Technologies 15 Expired
US7321058B2 Method for producing acrolein and/or acrylic acid Emerging Cross-Sectional Technologies 11 Expired
US7388109B2 Preparation of acrolein or acrylic acid or a mixture thereof from propane Chemistry; Metallurgy 9 Active
US5342488A Separation of 1,4-butanediol from hydrogenation mixtures Emerging Cross-Sectional Technologies 9 Expired
US6740779B1 Method for carrying out the catalytic gas phase oxidation of propene to form acrylic acid Chemistry; Metallurgy 7 Expired
US5073650A Preparation of 1,4-butanediol Chemistry; Metallurgy 5 Expired
US7268254B2 Preparation of (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed partial oxidation of C3 and/or C4 precursor compounds in a reactor having thermoplate modules Performing Operations; Transporting 5 Expired
US7326802B2 Preparation of at least one partial oxidation and/or ammoxidation product of propylene Emerging Cross-Sectional Technologies 3 Expired
US7253308B1 Method for catalytic phase oxidation to (meth) acrolein and/or (meth) acrylic acid Mechanical Engineering; Lighting; Heating 3 Expired
US6624315B2 Method of gas phase catalytic oxidation to give maleic acid anhydride Performing Operations; Transporting 3 Expired
US8721997B2 Reactor for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated Emerging Cross-Sectional Technologies 2 Active
US7842846B2 Process for heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated Chemistry; Metallurgy 2 Active
US7847118B2 Process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated Emerging Cross-Sectional Technologies 2 Active
US7410622B2 Reactor for partial oxidations having thermoplate modules Performing Operations; Transporting 2 Active
US8721996B2 Reactor for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated Emerging Cross-Sectional Technologies 2 Active
US7790942B2 Process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated Emerging Cross-Sectional Technologies 2 Active
US7109374B2 Method for the continuous extraction of (meth)acrylic acid Chemistry; Metallurgy 2 Expired
US10023520B2 Preparation of tert-butyl esters of aliphatic carboxylic acids Chemistry; Metallurgy 2 Active
US7772410B2 Method for producing phthalic anhydride Performing Operations; Transporting 1 Active
US7723549B2 Process for preparing at least one target product by partial oxidation and/or ammoxidation of propylene Emerging Cross-Sectional Technologies 1 Active
US7214821B2 Preparation of (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed partial oxidation of C3 and/or C4 precursor compounds Performing Operations; Transporting 1 Expired
US10301252B2 Production of tert-butyl esters of ethylenically unsaturated carboxylic acids Emerging Cross-Sectional Technologies 1 Active
US8835575B2 Method for the production of water-absorbing polymer particles Chemistry; Metallurgy 0 Active
US10730823B2 Process for isolating pure tert-butyl (meth)acrylate from crude tert-butyl (meth)acrylate by distillation Chemistry; Metallurgy 0 Active
US10941103B2 Process for continuously preparing n-butyl acrylate or isobutyl acrylate Chemistry; Metallurgy 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.