Patents by Inventor Michael D. Riordan

Michael D. Riordan 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).

  • Recovery of ethers
    Patent number: 4144138
    Abstract: Methyl tertiary butyl ether may be recovered from etherification reaction effluent by azeotropic distillation to recover methanol-ether azeotrope overhead which is water-washed to give pure ether raffinate plus ether-methanol bottoms, the latter being azeotropically distilled to yield ether-methanol overhead which is recycled to water-washing.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: March 13, 1979
    Assignee: Texaco Inc.
    Inventors: Babu Y. Rao, Sheldon Herbstman, Michael D. Riordan