Patents by Inventor Robert E. Michel

Robert E. Michel 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).

  • Administration of CEBP-Beta Antagonist and Methods of Use
    Publication number: 20230218717
    Abstract: Provided are methods of administering a peptide antagonist of CCAAT/enhancer-binding protein beta (C/EBP?) and methods of treating solid tumors by administering a peptide antagonist of C/EBP?.
    Type: Application
    Filed: June 21, 2021
    Publication date: July 13, 2023
    Inventors: Barry Jay Kappel, Gene Merutka, Jimmy Andrew Rotolo, Alice Susannah Bexon, Robert E. Michel
  • Recovery of dimethyl terephthalate from polymer mixtures
    Patent number: 5504122
    Abstract: Dimethyl terephthalate is recovered from polymer mixtures containing polymers of terephthalic acid and glycol and a chloride polymer, by adding base to neutralize the hydrochloric acid formed by the degradation of the chloride polymer.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: April 2, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert E. Michel, George M. Williamson
  • Process for the separation of glycols from dimethyl terephthalate
    Patent number: 5391263
    Abstract: Separation of ethylene glycol and diethylene glycol from dimethyl terephthalate is accomplished by distillation using methyl benzoate or the methyl ester of p-toluic acid as an azeotropic agent.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: February 21, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Richard R. Hepner, Robert E. Michel, Robert E. Trotter
  • Recovery and recycle of acetic acid in an oxidation process
    Patent number: 5142097
    Abstract: Acetic acid is recovered from the mother liquor used to oxidize para-xylene to terephthalic acid by adding at least one organic compound having a melting point below 140.degree. C. and an atmospheric boiling point above 230.degree. C.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: August 25, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert E. Michel, Roger G. Rudolph
  • Process for the production of polyethyleneterephthalate from dimethylterephthalate
    Patent number: 4952668
    Abstract: A process for the removal of manganese catalyst from the bis glycol ester of terephthalic acid, by adding terephthalic acid and/or isophthalic acid, and separating the precipitate.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: August 28, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Robert E. Michel
  • Catalyst recovery
    Patent number: 4910175
    Abstract: Recovery of cobalt and manganese catalyst from oxidation process, by precipitation with oxalic acid and alkali metal hydroxide, followed by oxidation of the precipitate in acetic acid to form cobalt and manganese acetate.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: March 20, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert E. Michel, Matthew R. Kegelman, Frederick J. Sebelist
  • Form of solid dimethylterephthalate
    Patent number: 4734309
    Abstract: A block of dimethylterephthalate having a needle-like crystal structure. The block is easily cleavable, and has a reduced tendency to fuse to other blocks when subjected to bag-stacking pressure.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: March 29, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Mark S. Katzenberger, Robert E. Michel, Roger G. Rudolph