Patents by Inventor Peter Crooimans

Peter Crooimans 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: 4850143
    Abstract: A seal for closing the gap between adjacent panels is formed from plastic sheet material having lateral attachment areas bearing adhesive bands on the opposite edges of one face. The seal area between the attachment areas constitutes a barrier web and folds between the attachment areas, defining a triple air column insulator.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: July 25, 1989
    Assignee: Anna Elizabeth Crooimans
    Inventor: Peter Crooimans