Patents by Inventor Ronald W. Osman

Ronald W. Osman 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).

  • Microencapsulated composition containing solvent including triisopropyylbiphenyl
    Patent number: 5458974
    Abstract: A remarkably low odor carbonless paper solvent is provided comprising a mixture of diisopropylbiphenyl and triisopropylbiphenyl, generally in an amount of 50 to 90% by weight diisopropylbiphenyl and 10 to 40% by weight triisopropylbiphenyl. The solvent and a chromogenic substance such as a leuco dye are encapsulated to form microcapsules which are coated onto one surface of a carrier sheet. A color developing substance is then applied to another sheet to form a carbonless marking system. When the microcapsules are ruptured, the solubilized chromogenic substance contacts and reacts with the developer to form an image.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: October 17, 1995
    Assignee: Koch Industries, Inc.
    Inventors: Harold W. Earhart, Gregory R. Hahn, Ronald W. Osman
  • Carbonless paper solvent comprising diisopropylbiphenyl and triisopropylbiphenyl and products utilizing same
    Patent number: 5318940
    Abstract: A remarkably low odor carbonless paper solvent is provided comprising a mixture of diisopropylbiphenyl and triisopropylbiphenyl, generally in an amount of 50 to 90% by weight diisopropylbiphenyl and 10 to 40% by weight triisopropylbiphenyl. The solvent and a chromogenic substance such as a leuco dye are encapsulated to form microcapsules which are coated onto one surface of a carrier sheet. A color developing substance is then applied to another sheet to form a carbonless marking system. When the microcapsules are ruptured, the solubilized chromogenic substance contacts and reacts with the developer to form an image.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: June 7, 1994
    Assignee: Koch Industries, Inc.
    Inventors: Harold W. Earhart, Gregory R. Hahn, Ronald W. Osman