Patents by Inventor David M. Robichaud

David M. Robichaud 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).

  • Birth control device
    Patent number: 4794920
    Abstract: A birth control device comprises an oversized sheath portion fitting loosely about the male organ and a flange about the open end of the sheath for retaining the open end of the device outside the woman's body.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: January 3, 1989
    Inventor: David M. Robichaud