Patents by Inventor Vernon E. Stygar

Vernon E. Stygar 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).

  • Patent number: 6210520
    Abstract: The present invention provides a novel screen printable thermosetting composition for forming thermally conductive interface and a method of using the same. The composition is used to promote the transfer of heat from a source of heat such as an electronic device to a heat dissipation device such as a heat sink. The composition comprises by weight from about 35% to about 75% of a thermal curing vinyl terminated siloxane material, from about 0.005% to about 5% catalyst, from about 10% to about 30% hydrocarbon solvent and from about 20% to about 70% conductive filler.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: April 3, 2001
    Assignee: Ferro Corporation
    Inventors: Jesus E. Osuna, Keith M. Mason, Vernon E. Stygar
  • Patent number: 6204303
    Abstract: The present invention provides a novel UV curable composition for forming thermally conductive interface and a method of using the same. The composition is used to promote the transfer of heat from a source of heat such as an electronic device to a heat dissipation device such as a heat sink. The composition comprises by weight from about 35% to about 75% of a UV curable acrylate material, from about 0.5% to about 15% catalyst, from about 10% to about 30% hydrocarbon solvent and from about 20% to about 70% conductive filler.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: March 20, 2001
    Assignee: Ferro Corporation
    Inventors: Jesus E. Osuna, Keith M. Mason, Vernon E. Stygar
  • Patent number: 6162849
    Abstract: This invention relates to a thermally conductive moldable polymer blend comprising a thermoplastic polymer having a tensile at yield of at least 10,000 psi; at least 60% by weight of a mixture of boron nitride powders having an average particle size of at least 50 microns; and a coupling agent. The composition displays a thermal conductivity of at least about 15 W/m.degree. K and it is capable of being molded using high speed molding techniques such as injection molding.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: December 19, 2000
    Assignee: Ferro Corporation
    Inventors: Qizhuo Zhuo, Ronald M. Harris, Dennis C. Skovran, Leo F. Lightner, Michael S. Randall, Vernon E. Stygar
  • Patent number: 6020424
    Abstract: The present invention provides a screen printable thermosetting composition for forming thermally conductive interface and a method of using the same. The composition is used to promote the transfer of heat from a source of heat such as an electronic device to a heat dissipation device such as a heat sink. The composition comprises by weight from about 35% to about 75% of a thermal curing vinyl terminated siloxane material, from about 0.005% to about 5% catalyst, from about 10% to about 30% hydrocarbon solvent and from about 20% to about 70% conductive filler.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: February 1, 2000
    Assignee: Ferro Corporation
    Inventors: Jesus E. Osuna, Keith M. Mason, Vernon E. Stygar
  • Patent number: 5968606
    Abstract: The present invention provides a novel UV curable composition for forming thermally conductive interface and a method of using the same. The composition is used to promote the transfer of heat from a source of heat such as an electronic device to a heat dissipation device such as a heat sink. The composition comprises by weight from about 35% to about 75% of a UV curable acrylate material, from about 0.5% to about 15% catalyst, from about 10% to about 30% hydrocarbon solvent and from about 20% to about 70% conductive filler.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: October 19, 1999
    Assignee: Ferro Corporation
    Inventors: Jesus E. Osuna, Keith M. Mason, Vernon E. Stygar
  • Patent number: 5963121
    Abstract: The present invention relates to compositions for use in forming resettable electronic circuit protection devices or fuses, methods of forming resettable fuses using the compositions, and resettable fuses formed from the compositions. Resettable fuse compositions according to the present invention include a mixture of the reaction product of polyethylene glycol and a diepoxide having a molecular weight of at least 18,000, solvent, conductive particles, and optional solvent volatility adjusters. In a preferred embodiment, resettable fuses according to the present invention are formed by screen printing the compositions directly onto printed electric circuits to form fuses. During current overload conditions, the temperature of the resettable fuse material rapidly increases due to resistive heating generated by excessive current flow through the conductive particle chains or pathways.
    Type: Grant
    Filed: November 11, 1998
    Date of Patent: October 5, 1999
    Assignee: Ferro Corporation
    Inventors: Vernon E. Stygar, Jesus E. Osuna, Brian T. Pointer, John J. Ekis