Patents by Inventor Adrianus Johannes Jozef Straathof

Adrianus Johannes Jozef Straathof 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).

  • Patent number: 9816115
    Abstract: The invention includes a process of producing methyl methacrylate or derivatives thereof is described. The process includes the steps of converting 2-butanone to methyl propionate using a Baeyer-Villiger monooxygenase, and treating the methyl propionate produced to obtain methyl methacrylate or derivatives thereof. A method of preparing polymers or copolymers of methyl methacrylate or its derivatives is also described.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: November 14, 2017
    Assignee: LUCITE INTERNATIONAL UK LIMITED
    Inventors: Graham Ronald Eastham, David William Johnson, Adrianus Johannes Jozef Straathof, Marco Wilhemus Fraaije, Remko Tsjibbe Winter
  • Patent number: 9481900
    Abstract: The invention relates to a polypeptide having oxidoreductase activity which comprises the amino acid sequence set out in SEQ ID NO: 3 or an amino acid sequence encoded by the nucleotide sequence of SEQ ID NO: 4, or a variant polypeptide thereof having 45% or more sequence identity with the sequence of SEQ ID NO: 3. The invention also relates to a process for the production of 2,5-furan-dicarboxylic acid (FDCA) or production of 5-hydroxymethyl-2-furancarboxylic acid (HMF acid).
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: November 1, 2016
    Assignee: Purac Biochem B.V.
    Inventors: Harald Johan Ruijssenaars, Nick Johannes Petrus Wierckx, Frank Wouter Koopman, Adrianus Johannes Jozef Straathof, Johannes Hendrik De Winde
  • Publication number: 20150203882
    Abstract: The invention relates to a polypeptide having oxidoreductase activity which comprises the amino acid sequence set out in SEQ ID NO: 3 or an amino acid sequence encoded by the nucleotide sequence of SEQ ID NO: 4, or a variant polypeptide thereof having 45% or more sequence identity with the sequence of SEQ ID NO: 3. The invention also relates to a process for the production of 2,5-furan-dicarboxylic acid (FDCA) or production of 5-hydroxymethyl-2-furancarboxylic acid (HMF acid).
    Type: Application
    Filed: April 3, 2015
    Publication date: July 23, 2015
    Applicant: Purac Biochem B.V.
    Inventors: Harald Johan RUIJSSENAARS, Nick Johannes Petrus Wierckx, Frank Wouter Koopman, Adrianus Johannes Jozef Straathof, Johannes Hendrik De Winde
  • Patent number: 9045787
    Abstract: The invention relates to a polypeptide having oxidoreductase activity which comprises the amino acid sequence set out in SEQ ID NO: 3 or an amino acid sequence encoded by the nucleotide sequence of SEQ ID NO: 4, or a variant polypeptide thereof having 45% or more sequence identity with the sequence of SEQ ID NO: 3. The invention also relates to a process for the production of 2,5-furan-dicarboxylic acid (FDCA) or production of 5-hydroxymethyl-2-furancarboxylic acid (HMF acid).
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: June 2, 2015
    Assignee: Purac Biochem B.V.
    Inventors: Harald Johan Ruijssenaars, Nick Johannes Petrus Wierckx, Frank Wouter Koopman, Adrianus Johannes Jozef Straathof, Johannes Hendrik De Winde
  • Publication number: 20150112037
    Abstract: The invention includes a process of producing methyl methacrylate or derivatives thereof is described. The process includes the steps of converting 2-butanone to methyl propionate using a Baeyer-Villiger monooxygenase, and treating the methyl propionate produced to obtain methyl methacrylate or derivatives thereof. A method of preparing polymers or copolymers of methyl methacrylate or its derivatives is also described.
    Type: Application
    Filed: May 24, 2013
    Publication date: April 23, 2015
    Inventors: Graham Ronald Eastham, David William Johnson, Adrianus Johannes Jozef Straathof, Marco Wilhemus Fraaije, Remko Tsjibbe Winter
  • Publication number: 20120309918
    Abstract: The invention relates to a polypeptide having oxidoreductase activity which comprises the amino acid sequence set out in SEQ ID NO: 3 or an amino acid sequence encoded by the nucleotide sequence of SEQ ID NO: 4, or a variant polypeptide thereof having 45% or more sequence identity with the sequence of SEQ ID NO: 3. The invention also relates to a process for the production of 2,5-furan-dicarboxylic acid (FDCA) or production of 5-hydroxymethyl-2-furancarboxylic acid (HMF acid).
    Type: Application
    Filed: September 2, 2010
    Publication date: December 6, 2012
    Applicant: DSM IP ASSETS B.V.
    Inventors: Harald Johan Ruijssenaars, Nick Johannes Petrus Wierckx, Frank Wouter Koopman, Adrianus Johannes Jozef Straathof, Johannes Hendrik De Winde
  • Publication number: 20040053912
    Abstract: The invention relates to a process for the preparation of an aqueous solution or suspension of a &bgr;-lactam nucleus and application thereof. The aqueous solution or suspension of the &bgr;-lactam nucleus is prepared by process wherein an enzymatic deacylation of a &bgr;-lactam compound, which compounds comprises a &bgr;-lactam nucleus with a side chain coupled to it via an amide bond and which deacylation reaction is carried out in a mixture of water and an organic solvent and which deacylation leads to a &bgr;-lactam nucleus and a carboxylic acid, is carried out at a pH value of between 2 and 6 so that the carboxylic acid is extracted in situ to the organic solvent.
    Type: Application
    Filed: September 29, 2003
    Publication date: March 18, 2004
    Inventors: Thomas van der Does, Rienk Henrik Kuipers, Marjon Brigitte Diender, Jeroen Leonardus den Hollander, Adrianus Johannes Jozef Straathof, Lucas Antonius Maria van der Wielen, Joseph Johannes Heijnen