Patents by Inventor Borivoj R. Franko-Filipasic

Borivoj R. Franko-Filipasic 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).

  • Selective removal and recovery of catechol mixed with 2-methallyloxyphenol
    Patent number: 4420642
    Abstract: A process is disclosed for selectively removing catechol from a mixture comprising catechol, 2-methallyloxyphenol, various salts, and by-products by treating the mixture with aqueous base, the aqueous phase being preferably saturated with respect to salts present; the catechol may then be recovered for recycle by acidifying the resulting aqueous phase and extracting the acidified aqueous phase with a suitable organic solvent.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: December 13, 1983
    Assignee: FMC Corporation
    Inventors: Borivoj R. Franko-Filipasic, James Snyder
  • 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
  • Processes for producing herbicide intermediates
    Patent number: H53
    Abstract: Processes for producing 4,4-dimethyl-3-isoxazolidinone and intermediates for it from known and inexpensive starting materials are described and exemplified.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: April 1, 1986
    Assignee: FMC Corporation
    Inventors: Borivoj R. Franko-Filipasic, Sol A. Mednick, James Snyder