Patents by Inventor Barbara M. Koerber

Barbara M. Koerber 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 preparing 1-dichloroacyl-4-substituted phenoxy benzene and intermediates therefor
    Patent number: 4289909
    Abstract: Processes for preparing 1-dichloroacyl-4-(substituted phenoxy)benzenes and intermediates therefor. The processes are characterized by the use of certain catalysts, solvents and reaction conditions which afford improved yields and reaction products which can be purified by simple procedures (e.g. extraction, crystallization, etc.). The processes are especially applicable to manufacturing large quantities of the aforementioned compounds. The products are useful as mite ovacides.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: September 15, 1981
    Assignee: Chevron Research
    Inventors: Francis J. Freenor, III, Barbara M. Koerber
  • O-Sulfonyl-alpha-halo-2,6-dihalobenzaldoximes
    Patent number: 4125397
    Abstract: O-alkylsulfonyl- and O-haloalkylsulfonyl-alpha-halo-2,6-dihalobenzaldoximes are active pre-emergent herbicides.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: November 14, 1978
    Assignee: Chevron Research Company
    Inventors: Francis J. Freenor, III, Barbara M. Koerber
  • O-sulfonyl-alpha-cyano 2,6-dihalobenzaldoximes
    Patent number: 4123255
    Abstract: O-alkylsulfonyl-, O-haloalkylsulfonyl- and O-dialkylaminosulfonyl-alpha-cyano-2,6-dihalobenzaldoximes are active pre-emergent herbicides.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: October 31, 1978
    Assignee: Chevron Research Company
    Inventors: Francis J. Freenor, III, Barbara M. Koerber