Patents by Inventor Ramakrishna S. Shetty

Ramakrishna S. 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).

  • Satin and tinted satin iridescent films
    Patent number: 5837359
    Abstract: This invention provides a thermoplastic multilayer resinous film in which two or more resinous materials form a plurality of very thin layers of substantially uniform thickness, the layers being substantially parallel, the contiguous adjacent layers being of different transparent thermoplastic resinous materials differing in refractive index, each of the outermost skin layers being at least 5% of the total thickness of the film and the multilayer film containing a sufficient quantity of a pearlescent pigment in at least one of the interior layers to render it non-glossy.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: November 17, 1998
    Assignee: The Mearl Corporation
    Inventors: Ramakrishna S. Shetty, Scott A. Cooper
  • Colored iridescent film
    Patent number: 5451449
    Abstract: Disclosed is a transparent thermoplastic resinous film of at least 10 generally parallel layers in which the contiguous adjacent layers are of diverse transparent thermoplastic resinous material differing in refractive index by at least about 0.03, the film containing a sufficient quantity of a transparent dye which is soluble in the thermoplastic resinous material of the layers in which it is located to enhance or modify the apparent color of at least one of the reflection and transmission colors of the film.
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: September 19, 1995
    Assignee: The Mearl Corporation
    Inventors: Ramakrishna S. Shetty, Scott A. Cooper
  • Iridescent film with thermoplastic elastomeric components
    Patent number: 5089318
    Abstract: Improvements in multilayer light reflecting film are effected by the use of a thermoplastic elastomer resin in a system in which two or more resinous materials form a plurality of the layers.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: February 18, 1992
    Assignee: The Mearl Corporation
    Inventors: Ramakrishna S. Shetty, Scott A. Cooper
  • Iridescent film with thermoplastic elastomeric components
    Patent number: RE36899
    Abstract: Improvements in multilayer light reflecting film are effected by the use of a thermoplastic elastomer resin in a system in which two or more resinous materials form a plurality of the layers.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: October 3, 2000
    Assignee: Engelhard Corp.
    Inventors: Ramakrishna S. Shetty, Scott A. Cooper