Patents by Inventor Atam P. Sahni

Atam P. Sahni 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).

  • Powder coating composition comprising unsaturated polyesters and uses thereof
    Patent number: 6194525
    Abstract: The powder coating composition of the present invention includes a low-temperature mixture of a powder (A) and a powder (B), in which at least the powder (A) includes an unsaturated polyester resin and a free radical initiator for initiating polymerization of unsaturated polyester resins in the powder coating composition and the powder (B) includes a polymerization promoter and methods for making the composition. The powder (B) may further include an unsaturated polyester. The powders (A) and (B) are physically mixed at temperatures below which the polymerization promoter would cause the free radical initiator to initiate polymerization of the powder coating composition. Subsequently, the physically mixed powder coating composition is applied to a substrate and cured, during which the polymerization promoter causes the free radical initiator to initiate the curing reaction.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: February 27, 2001
    Assignee: Ferro Corporation
    Inventors: Carlos E. Ortiz, Atam P. Sahni, Gerald W. Drabeck, Anthony S. Scheibelhoffer, Susan M. Sobek, Douglas E. Brand
  • Screen printable decorative coating composition
    Patent number: 5549929
    Abstract: The present invention provides a screen printable coating composition comprising one or more hydroxy functional materials (I), one or more crosslinkers (II) for curing the hydroxy functional materials, and one or more crystalline reactive diluents (III). The coating composition may also include one or more catalysts (IV), plasticizers (V), rheology modifiers (VI), waxes (VII) and coloring agents (VIII). Various additives and fillers may also be included in the coating composition.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: August 27, 1996
    Assignee: Ferro Corporation
    Inventors: Anthony S. Scheibelhoffer, Michael J. Berlin, Atam P. Sahni, Dianna B. Dusek, Donald P. Hart
  • Electrostatically conductive premold coating
    Patent number: 4680139
    Abstract: Resin is mixed with graphite particles to form a blendable, processable premold coating. When the premold coating is incorporated onto the surface of a premold coated molded plastic product produced by the premold process, said coating is rendered electrostatically conductive.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: July 14, 1987
    Assignee: Ferro Corporation
    Inventors: Charles F. Williams, Atam P. Sahni
  • Electrostatically conductive premold coating
    Patent number: 4587160
    Abstract: Resin is mixed with graphite particles to form a blendable, processable premold coating. When the premold coating is incorporated onto the surface of a premold coated molded plastic product produced by the premold process, said coating is rendered electrostatically conductive.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: May 6, 1986
    Assignee: Ferro Corporation
    Inventors: Charles F. Williams, Atam P. Sahni