Patents by Inventor Richard C. Kromer

Richard C. Kromer 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).

  • Polymeric furan derivative
    Patent number: 3979373
    Abstract: A thermoplastic polymer composition and the method for making the same are disclosed. The polymer composition comprises randomly distributed units of ##EQU1## and IN SPECIFIED RATIOS. The process for producing the polymer comprises reacting a polyketone with a strong acid wherein the polyketone is the equimolar alternate copolymer of ethylene and carbon monoxide.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: September 7, 1976
    Assignee: Shell Oil Company
    Inventors: Thomas E. Kiovsky, Richard C. Kromer
  • Polymeric pyrrollic derivative
    Patent number: 3979374
    Abstract: A thermoplastic pyrrollic polymer composition and the method for making the same are disclosed. The polymer composition comprises ##EQU1## randomly distributed units of IN SPECIFIED RATIOS. The process for producing the polymer comprises reacting a polyketone and a primary monoamine in specified amounts wherein the polyketone is the equimolar alternate copolymer of ethylene and carbon monoxide.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: September 7, 1976
    Assignee: Shell Oil Company
    Inventors: Thomas E. Kiovsky, Richard C. Kromer
  • Polyketone derivative
    Patent number: 3979367
    Abstract: A thermoplastic polymer composition and the method for making the same are disclosed. The polymer composition comprises randomly distributed units of ##EQU1## --CH.sub.2 --CH.sub.2 -- and ##EQU2## or ##EQU3## in specified ratios. The process for producing the polymer comprises reacting a polyketone and a monothiol or dithiol compound in specified amounts.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: September 7, 1976
    Assignee: Shell Oil Company
    Inventors: Thomas E. Kiovsky, Richard C. Kromer