Patents by Inventor Philip B. Hobson

Philip B. Hobson 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).

  • Water aided catechol etherification
    Patent number: 4618728
    Abstract: A method is disclosed for facilitating selective etherification of catechol with methallyl chloride in the absence of an etherification catalyst, in which there is employed a solvent system comprising an aliphatic ketone and an etherification aiding amount of water.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: October 21, 1986
    Assignee: FMC Corporation
    Inventors: Philip B. Hobson, Robert E. Keay
  • Process for preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran
    Patent number: 4380654
    Abstract: A process for preparing 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran in which 2-methallyloxyphenol is heated to a temperature in the range of 150.degree. C. to 250.degree. C. in the presence of a solvent and a Lewis acid catalyst under an autogenous pressure of 20 to 60 psig is disclosed and exemplified.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: April 19, 1983
    Assignee: FMC Corporation
    Inventors: Borivoj R. Franko-Filipasic, Philip B. Hobson