Patents by Inventor John J. Heffron, executor

John J. Heffron, executor 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).

  • Process for the preparation of oxalate esters
    Patent number: 4005128
    Abstract: A process for the preparation of oxalate esters by reacting carbon monoxide with an alcohol in the presence of a stoichiometric quantity of a metal salt catalyst and a stoichiometric quantity of an amine base. Preferably stoichiometric amounts of particular metal oxidizing salts are employed along with the metal salt catalyst and a stoichiometric amount of amine base. Alternatively ligands of the metal salt catalysts may be employed, especially in conjunction with a metal oxidant and an amine base thereby providing a pronounced effect on selectivity for the oxalate ester over the carbonate.
    Type: Grant
    Filed: April 2, 1975
    Date of Patent: January 25, 1977
    Assignee: Atlantic Richfield Company
    Inventors: Lee R. Zehner, Richard W. Sauer, deceased, John J. Heffron, executor