Patents by Inventor Robert L. Sharpe

Robert L. Sharpe 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).

  • Adjustable ladder
    Patent number: 6997282
    Abstract: A ladder is adjustable in a plurality of planes so a wide variety of sloped surfaces can be accommodated. The ladder includes non-slip surfaces on the steps and a paint can holder that can accommodate a one gallon paint can.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: February 14, 2006
    Inventors: Robert L. Sharp, Judith J. Sharp
  • Human glutamate receptor proteins and associated DNA compounds
    Patent number: 6312945
    Abstract: The present invention provides a human glutamate receptor and related DNA compounds useful not only in assays for potential pharmaceuticals but also in methods for molecular biology techniques.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: November 6, 2001
    Assignee: Eli Lilly and Company
    Inventors: J. Paul Burnett, Nancy G. Mayne, Robert L. Sharp, Yvonne M. Snyder
  • Human glutamate receptor and related DNA compounds
    Patent number: 6313279
    Abstract: The present invention provides a human glutamate receptor and related DNA compounds useful not only in assays for potential pharmaceuticals but also in methods for molecular biology techniques.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: November 6, 2001
    Assignee: Eli Lilly and Company
    Inventors: J. Paul Burnett, Nancy G. Mayne, Robert L. Sharp, Yvonne M. Snyder
  • Human metabotropic glutamate receptor and related DNA compounds
    Patent number: 6303751
    Abstract: This invention provides a human glutamate receptor and functional equivalents thereof, and nucleic acids compounds which encode the receptor. The invention also provides assays, probes and primers, and other molecular biology techniques which utilize the compounds disclosed.
    Type: Grant
    Filed: October 3, 1995
    Date of Patent: October 16, 2001
    Assignee: Eli Lilly and Company
    Inventors: J. Paul Burnett, Nancy G. Mayne, Robert L. Sharp, Yvonne M. Snyder
  • Method for grinding piston rings
    Patent number: 4208845
    Abstract: A method and apparatus for grinding a split piston ring having at least one inwardly converging top or bottom wall member by bringing such wall into engagement with a rotating grinding member having a spherical segment working surface, the path of such relative movement being along a line which is coincident with the axis of the piston ring and also coincident with a radius of the spherical surface of the grinding member, whereby all of the inwardly converging surface of the split piston ring is concurrently ground to conform to the curvature of the spherical segment surface of the grinding member.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: June 24, 1980
    Assignee: Dana Corporation
    Inventor: Robert L. Sharpe
  • Piston ring assembly and method of making same
    Patent number: 4123072
    Abstract: A piston and piston ring assembly wherein the piston is provided with a piston ring receiving groove having at least one inwardly converging side wall and an associated piston ring loosely received within the grove wherein the piston ring has at least one inwardly converging side wall of curved cross-section in facing relation with the inwardly converging side wall of the groove of the piston.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: October 31, 1978
    Assignee: Dana Corporation
    Inventor: Robert L. Sharpe