Patents by Inventor John B. Wilkes

John B. Wilkes 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).

  • Production of carboxylic acids from paraffins and carbon dioxide
    Patent number: 4016185
    Abstract: Carboxylic acids are prepared from high-molecular-weight paraffins by vapor phase cracking at a temperature of at least about 500.degree.C and a residence time of from about 0.1 seconds to about 10 seconds in the presence of carbon dioxide.
    Type: Grant
    Filed: December 11, 1975
    Date of Patent: April 5, 1977
    Assignee: Chevron Research Company
    Inventor: John B. Wilkes
  • Hydroformylation using aryl sulfonate stabilizer for cobalt catalyst
    Patent number: 3976703
    Abstract: The destructive dissociation of a cobalt carbonyl complex compound in the liquid phase is inhibited by the presence of an aryl sulfonate stabilizer.
    Type: Grant
    Filed: April 4, 1974
    Date of Patent: August 24, 1976
    Assignee: Chevron Research Company
    Inventor: John B. Wilkes
  • Stabilized hydroformylation reaction systems
    Patent number: 3931332
    Abstract: In hydroformylation reactions at temperatures in the range 100.degree.-225.degree.C. the destructive dissociation of cobalt carbonyl complex compounds to cobalt metal and residue is inhibited by the presence of minor amounts of 2,2'-bipyridine, alkyl-substituted 2,2'-bipyridines, N-alkyl-substituted alkylene diamines and mixtures of these compounds.
    Type: Grant
    Filed: June 4, 1973
    Date of Patent: January 6, 1976
    Assignee: Chevron Research Company
    Inventor: John B. Wilkes