Patents by Inventor William J. Stowell

William J. Stowell 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).

  • Method of making a shaped polyester article
    Patent number: 4942005
    Abstract: Disclosed is a method of making shaped articles including a continuous polyester phase having dispersed therein microbeads of cellulose acetate which are at least partially bordered by void space, the microbeads of cellulose acetate being present in an amount of about 10-30% by weight based on the weight of said polyester, said void space occupying about 2-50% by volume of said shaped article. Articles made by this method have excellent physical properties, especially optical properties, and are useful in such applications as paper substitutes, for example.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: July 17, 1990
    Assignee: Eastman Kodak Company
    Inventors: Mark A. Pollock, William J. Stowell, James J. Krutak
  • Photographic elements containing reflective or diffusely transmissive supports
    Patent number: 4900654
    Abstract: Disclosed are photographic elements having reflective or diffusely transmissive supports shaped from a continuous polyester phase having dispersed therein microbeads of cellulose acetate which are at least partially bordered by void space, the microbeads of cellulose acetate being poresent in an amount of about 10-30% by weight based on the weight of said polyester, said void space occupying about 2-50% by volume of said shaped article. Such articles have excellent physical properties.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: February 13, 1990
    Assignee: Eastman Kodak Company
    Inventors: Mark A. Pollock, William J. Stowell, James J. Krutak
  • Shaped articles from polyester and cellulose ester compositions
    Patent number: 4770931
    Abstract: Disclosed are shaped articles comprising a continuous polyester phase having dispersed therein microbeads of cellulose acetate which are at least partially bordered by void space, the microbeads of cellulose acetate being poresent in an amount of about 10-30% by weight based on the weight of said polyester, said void space occupying about 2-50% by volume of said shaped article. Such articles have excellent physical properties, especially optical properties, and are useful in such applications as paper substitutes, for example.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: September 13, 1988
    Assignee: Eastman Kodak Company
    Inventors: Mark A. Pollock, William J. Stowell, James J. Krutak