Patents by Inventor William Henry Elfring

William Henry Elfring 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 inhibiting the loss of solar reflectance over time of an exterior elastomeric
    Patent number: 6815010
    Abstract: A method of inhibiting the loss of solar reflectivity over time of an exterior elastomeric coating composition comprising an organic binder and at least one inorganic additive comprises: replacing at least a part of the at least one inorganic additive with a solid, particulate, organic polymer having a Tg greater than 70° C. An improved exterior elastomeric coating composition is also disclosed.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: November 9, 2004
    Assignee: Rohm and Naas Company
    Inventors: William Henry Elfring, Donald Alfred Winey
  • High solar reflectance coating composition
    Publication number: 20020103283
    Abstract: A method of inhibiting the loss of solar reflectivity over time of an exterior elastomeric coating composition comprising an organic binder and at least one inorganic additive comprises: replacing at least a part of the at least one inorganic additive with a solid, particulate, organic polymer having a Tg greater than 70° C. An improved exterior elastomeric coating composition is also disclosed.
    Type: Application
    Filed: May 1, 2001
    Publication date: August 1, 2002
    Inventors: William Henry Elfring, Donald Alfred Winey