Patents by Inventor Richard Antonius Van Heck

Richard Antonius Van Heck has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Oxidation of 5-hydroxy-2-furanone to maleates
    Patent number: 11912656
    Abstract: The invention is directed to a process for preparing maleic acid or a derivative thereof, the process comprising a step b) of oxidizing 5-hydroxy-2(5H)-furanone and/or cis-?-formylacrylic acid to maleic acid or a derivative thereof by contacting the 5-hydroxy-2(5H)-furanone and/or cis-?-formylacrylic acid with molecular oxygen (O2) in the presence of a catalyst. In a particular embodiment, the step b) is preceded by a step a) of oxidizing a furanic compound according to formula I into the 5-hydroxy-2(5H)-furanone and/or cis-?-formylacrylic acid, wherein R1 is H, CH2OH, CO2H or CHO and R2 is H, OH, C1-C6 alkyl or O(C1-C6 alkyl), or esters, ethers, amides, acid halides, anhydrides, carboximidates, nitriles, and salts of formula I.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 27, 2024
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Marc Crockatt, Roman Latsuzbaia, Johan Urbanus, Earl Lawrence Vincent Goetheer, Richard Antonius Van Heck
  • Oxidation of 5-Hydroxy-2-Furanone to Maleates
    Publication number: 20220090274
    Abstract: The invention is directed to a process for preparing maleic acid or a derivative thereof, said process comprising a step b) of oxidizing 5-hydroxy-2(5H)-furanone and/or cis-?-formylacrylic acid to maleic acid or a derivative thereof by contacting 5-hydroxy-2(5H)-furanone and/or cis-?-formylacrylic acid with molecular oxygen (O2) in the presence of a catalyst. In a particular embodiment, step b) is preceded by a step a) of oxidizing a furanic compound according to formula I into 5-hydroxy-2(5H)-furanone and/or cis-?-formylacrylic acid, wherein R1 is H, CH2OH, CO2H or CHO and R2 is H, OH, C1-C6 alkyl or O(C1-C6 alkyl), or esters, ethers, amides, acid halides, anhydrides, carboximidates, nitriles, and salts thereof.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 24, 2022
    Inventors: Marc Crockatt, Roman Latsuzbaia, Johan Urbanus, Earl Lawrence Vincent Goetheer, Richard Antonius Van Heck