Patents by Inventor Hendrik Ralph Patrick Ritter

Hendrik Ralph Patrick Ritter 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).

  • Solvent cast optical film
    Publication number: 20020165327
    Abstract: Disclosed is a low birefringence solvent cast film of optical quality comprising a blend of a cycloaliphatic polyester and a polycarbonate and method of preparing the film by casting a solvent containing dissolved cycloaliphatic polyester and a polycarbonate onto a support and evaporating the solvent to form a film.
    Type: Application
    Filed: April 5, 2001
    Publication date: November 7, 2002
    Inventors: Gabrie Hoogland, Robert Puyenbroek, Hendrik Ralph Patrick Ritter, Safwat E. Tadros, Kang Xi