Patents by Inventor William Robert Wilber

William Robert Wilber 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).

  • Multivalent ion compatible carbomer formulations
    Publication number: 20040191187
    Abstract: A polymeric formulation, and more specifically, a toothpaste formulation, is disclosed containing a highly carboxylated polymer or copolymer derived from one or more unsaturated carboxylic acids in combination with a calcium carbonate abrasive, a galactomannan, and traditional filler materials. The formulation is especially useful where sources of multivalent cations would otherwise cause phase separation and instability of the toothpaste.
    Type: Application
    Filed: January 28, 2004
    Publication date: September 30, 2004
    Inventors: Hong Luo, William Robert Wilber, Jian-Hwa Guo
  • Dosage form of N-acetyl cysteine
    Patent number: 6623754
    Abstract: A directly-compressed, controlled release tablet contains N-acetyl cysteine as the active ingredient.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: September 23, 2003
    Assignee: Noveon IP Holdings Corp.
    Inventors: Jian-Hwa Guo, William Robert Wilber
  • Dosage form of N-acetyl cysteine
    Publication number: 20030003148
    Abstract: A directly-compressed, controlled release tablet contains N-acetyl cysteine as the active ingredient.
    Type: Application
    Filed: May 21, 2001
    Publication date: January 2, 2003
    Inventors: Jian-Hwa Guo, William Robert Wilber
  • Degradable blend composition
    Patent number: 5859151
    Abstract: The present invention provides a blend composition comprising a thermoplastic polyurethane and an acrylic acid copolymer wherein the thermoplastic polyurethane forms the discontinuous phase of the blend. The blend can be used in films or made into fibers for personal care products such as ostomy bags and diapers. Moreover, such materials are also useful for packaging products such as garbage bags.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: January 12, 1999
    Assignee: The B. F. Goodrich Company
    Inventors: Yona Eckstein, William Robert Wilber, Witoki Szydlowski