Patents by Inventor Ramakrishna Shetty

Ramakrishna Shetty 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).

  • Flakes from multilayer iridescent films for use in paints and coatings
    Patent number: 6554943
    Abstract: Comminuted particles of iridescent laminate film are prepared by supporting the film on a strippable substrate prior to the processing of the film into particulate form.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: April 29, 2003
    Assignee: Engelhard Corporation
    Inventors: Ramakrishna Shetty, Scott I. Allen
  • Multi-layer iridescent films
    Patent number: 6475608
    Abstract: A transparent iridescent thermoplastic resinous laminate film having at least 10 very thin layers of substantially uniform thickness, said layers being generally parallel, the contiguous adjacent layers being of different transparent thermoplastic resinous materials of which one is a naphthalate-based polyester or copolyester resin, the contiguous adjacent layers differing in refractive index by at least about 0.03.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: November 5, 2002
    Assignee: Engelhard Corporation
    Inventors: Scott I. Allen, Ramakrishna Shetty
  • Flakes from multilayer iridescent films for use in paints and coatings
    Patent number: 6291056
    Abstract: Comminuted particles of iridescent laminate film are prepared by supporting the film on a strippable substrate prior to the processing of the film into particulate form.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: September 18, 2001
    Assignee: Engelhard Corporation
    Inventors: Ramakrishna Shetty, Scott I. Allen
  • Flakes from multilayer iridescent films for use in paints and coatings
    Publication number: 20010016250
    Abstract: Comminuted particles of iridescent laminate film are prepared by supporting the film on a strippable substrate prior to the processing of the film into particulate form.
    Type: Application
    Filed: April 19, 2001
    Publication date: August 23, 2001
    Inventors: Ramakrishna Shetty, Scott I. Allen
  • MULTI-LAYER IRIDESCENT FILMS
    Publication number: 20010009722
    Abstract: A transparent thermoplastic resinous laminate film is disclosed having at least 10 very thin layers of substantially uniform thickness, said layers being generally parallel, the contiguous adjacent layers being of different transparent thermoplastic resinous materials of which one is a naphthalate-based polyester or copolyester resin, the contiguous adjacent layers differing in refractive index by at least about 0.03.
    Type: Application
    Filed: November 16, 1998
    Publication date: July 26, 2001
    Inventors: SCOTT I. ALLEN, RAMAKRISHNA SHETTY
  • Multilayer light-reflecting film
    Patent number: 4310584
    Abstract: Improvements in multilayer light-reflecting film are effected by the use of thermoplastic polyester as the high refractive index component of a system in which two or more resinous materials form a plurality of layers.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: January 12, 1982
    Assignee: The Mearl Corporation
    Inventors: Scott A. Cooper, Ramakrishna Shetty, Jules Pinsky
  • Multilayer light-reflecting film
    Patent number: RE31780
    Abstract: Improvements in multilayer light-reflecting film are effected by the use of thermoplastic polyester as the high refractive index component of a system in which two or more resinous materials form a plurality of layers.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: December 25, 1984
    Assignee: The Mearl Corporation
    Inventors: Scott A. Cooper, Ramakrishna Shetty, Jules Pinsky