Patents by Inventor Marco Antonius Denneman

Marco Antonius Denneman 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).

  • Process for removing fouling
    Patent number: 8198398
    Abstract: The invention relates to a process for removing fouling on a surface, wherein the surface is contacted with an aqueous solution of a guanidine of formula R1R2N—C(?NH)—NR3R4??(I) wherein R1, R2, R3 and R4 may be the same or different and each of R1, R2, R3 and R4 is hydrogen or hydrocarbyl.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: June 12, 2012
    Assignee: Shell Oil Company
    Inventors: Marco Antonius Denneman, Willem Karzijn
  • PROCESS FOR REMOVING FOULING
    Publication number: 20110275776
    Abstract: The invention relates to a process for removing fouling on a surface, wherein the surface is contacted with an aqueous solution of a guanidine of formula R1R2N—C(?NH)—NR3R4??(I) wherein R1, R2, R3 and R4 may be the same or different and each of R1, R2, R3 and R4 is hydrogen or hydrocarbyl.
    Type: Application
    Filed: December 21, 2009
    Publication date: November 10, 2011
    Inventors: Marco Antonius Denneman, Karzijn Willem