Patents by Inventor Rimvydas L. Cepulis

Rimvydas L. Cepulis 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).

  • Preparation of polyamide from dinitrile, diamine and water with P catalyst
    Patent number: 4520190
    Abstract: Polyamides suitable for fiber spinning are produced by contacting a diamine, a dinitrile and water in a process wherein the diamine is added gradually to the dinitrile over the course of polymerization in the presence of an oxygenated phosphorus compound catalyst.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: May 28, 1985
    Assignee: The Standard Oil Company
    Inventors: Gerald P. Coffey, Benedict S. Curatolo, Rimvydas L. Cepulis
  • Preparation of nylon polyamide with cobalt salt
    Patent number: 4459394
    Abstract: A polyamide is produced by polymerizing at least one of alpha, beta unsaturated carboxylic acid, an ammonium salt of an alpha, beta unsaturated carboxylic acid, an alpha, beta unsaturated nitrile and water, a beta-amino propionic acid or alkyl derivative thereof and an alpha, beta unsaturated amide and ammonia in the presence of a catalyst containing cobalt. Preferred catalysts comprise cobaltous carboxylates and cobaltic salts of the enol of beta-di-ketones.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: July 10, 1984
    Assignee: The Standard Oil Company
    Inventors: Gerald P. Coffey, Rimvydas L. Cepulis, Benedict S. Curatolo
  • Olefin oxidation process
    Patent number: 4342698
    Abstract: Oxole compounds, e.g. furan, are produced by contacting alkenes and/or alkadienes with molecular oxygen in the presence of an antimony catalyst.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: August 3, 1982
    Assignee: The Standard Oil Company
    Inventors: Joseph P. Bartek, Robert K. Grasselli, Rimvydas L. Cepulis
  • Fuel briquet
    Patent number: D555585
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: November 20, 2007
    Assignee: Creative Spark, LLC
    Inventors: Craig Saunders, John Spirk, John R. Nottingham, David Boll, Rimvydas L. Cepulis
  • Fuel briquette
    Patent number: D560603
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: January 29, 2008
    Assignee: Creative Spark, LLC
    Inventors: Craig Saunders, John Spirk, John R. Nottingham, David Boll, Rimvydas L. Cepulis
  • Fuel briquet
    Patent number: D560604
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: January 29, 2008
    Assignee: Creative Spark, LLC
    Inventors: Craig Saunders, John Spirk, John R. Nottingham, David Boll, Rimvydas L. Cepulis
  • Fuel briquet
    Patent number: D561090
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: February 5, 2008
    Assignee: Creative Spark, LLC
    Inventors: Craig Saunders, John Spirk, John R. Nottingham, David Boll, Rimvydas L. Cepulis
  • Fuel briquet
    Patent number: D561091
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: February 5, 2008
    Assignee: Creative Spark, LLC
    Inventors: Craig Saunders, John Spirk, John R. Nottingham, David Boll, Rimvydas L. Cepulis
  • Fuel briquet
    Patent number: D561686
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: February 12, 2008
    Assignee: Creative Spark, LLC
    Inventors: Craig Saunders, John Spirk, John R. Nottingham, David Boll, Rimvydas L. Cepulis