Patents by Inventor Kevin J. Drost

Kevin J. Drost 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).

  • Tricyanovinyl substitution process for NLO polymers
    Patent number: 5718845
    Abstract: Nonlinear optical compounds which contain a heteroaromatic ring and may further comprise a tricyanovinyl group attached to the heteroaromatic ring.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: February 17, 1998
    Assignee: Enichem S.p.A.
    Inventors: Kevin J. Drost, Pushkara Rao Varanasi, Kwan-Yue Alex Jen, Michael Anthony Drzewinski
  • Tricyanovinyl substitution process for NLO polymers
    Patent number: 5395556
    Abstract: Base polymers devoid of non-linear optical properties exhibiting second order non-linear optical properties after the covalent attachment of tricyanovinyl groups to pendant side chains of the base polymer. Methods of preparing a polymer having second order non-linear optical properties by reacting the base polymers of the present invention with tetracyanoethylene in a basic solvent at elevated temperatures.
    Type: Grant
    Filed: October 9, 1991
    Date of Patent: March 7, 1995
    Assignee: Enichem S.p.A.
    Inventors: Kevin J. Drost, Pushkara R. Varanasi, Kwan-Yue A. Jen, Michael A. Drzewinski