Patents by Inventor William L. Baldwin

William L. Baldwin 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).

  • Dyed collagen sausage casing
    Patent number: 4769246
    Abstract: A dye containing chocolate is added to a collagen casing material to produce a dyed collagen casing.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: September 6, 1988
    Assignee: Devro, Inc.
    Inventor: William L. Baldwin
  • Process for preparing dyed collagen sausage casing
    Patent number: 4728523
    Abstract: A brown dyed collagen casing containing chocolate as the dye. The chocolate can be incorporated into the casing by adding the chocolate to the collagen as the extrudable collagen gel is manufactured or may be applied to an extruded tubular casing before the casing is dried.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: March 1, 1988
    Assignee: Devro, Inc.
    Inventor: William L. Baldwin