Patents by Inventor Walter Tangen

Walter Tangen 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).

  • Stabilizing device for an inflatable raft
    Patent number: 4054961
    Abstract: An inflatable life raft has an inflatable hose surrounding it, pairs of oppositely arranged, flexible straps tightly interconnecting the hose with the raft and each sloping outwardly of the raft and toward the hose.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: October 25, 1977
    Assignee: Gewako S.A.
    Inventor: Walter Tangen