Patents by Inventor P.J.W. Krouwel

P.J.W. Krouwel 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: D869186
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: December 10, 2019
    Inventor: P.J.W. Krouwel
  • Patent number: D874174
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 4, 2020
    Inventor: P. J. W. Krouwel
  • Patent number: D874839
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 11, 2020
    Inventor: P. J. W. Krouwel
  • Patent number: D874840
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 11, 2020
    Inventor: P. J. W. Krouwel