Patents by Inventor Donald John Peterson

Donald John Peterson 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 cyclopropylcarinyl alcohols
    Patent number: 4086280
    Abstract: Pesticidal and anti-inflammatory cyclopropyl compounds, cyclopropyl intermediates for the preparation of pesticidal compounds, especially chrysanthemic acid-like intermediates, and a process for preparing same.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: April 25, 1978
    Assignee: The Procter & Gamble Company
    Inventors: Donald John Peterson, Medford Dwight Robbins
  • Preparation of chrysanthemic acid compounds
    Patent number: 4085273
    Abstract: Pesticidal and anti-inflammatory cyclopropyl compounds, cyclopropyl intermediates for the preparation of pesticidal compounds, especially chrysanthemic acid-like intermediates, and a process for preparing same.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: April 18, 1978
    Assignee: The Procter & Gamble Company
    Inventors: Donald John Peterson, Medford Dwight Robbins
  • Hydrated soap making
    Patent number: 4075234
    Abstract: Sodium and lithium salts of organic carboxylic acids are prepared by saponifying the corresponding organic carboxylic acid ester with a concentrated aqueous solution of sodium hydroxide or lithium hydroxide in a liquid reaction medium comprising an alkyl nitrile, separating said salts from the reaction mixture, and removing excess alkyl nitrile from the salts.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: February 21, 1978
    Assignee: The Procter & Gamble Company
    Inventor: Donald John Peterson
  • Process for preparing substituted cyclopropycarbinyl compounds
    Patent number: 4065480
    Abstract: Pesticidal and anti-inflammatory cyclopropyl compounds, cyclopropyl intermediates for the preparation of pesticidal compounds, especially chrysanthemic acid-like intermediates, and a process for preparing same.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: December 27, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Donald John Peterson, Medford Dwight Robbins
  • Process for producing cyclopropyl substituted organosulfides
    Patent number: 3998889
    Abstract: Pesticidal and anti-inflammatory cyclopropyl compounds, cyclopropyl intermediates for the preparation of pesticidal compounds, especially chrysanthemic acid-like intermediates, and a process for preparing same.
    Type: Grant
    Filed: June 12, 1975
    Date of Patent: December 21, 1976
    Assignee: The Procter & Gamble Company
    Inventors: Donald John Peterson, Medford Dwight Robbins
  • Alkyltin cyclopropylcarbinylsulfonate
    Patent number: 3959324
    Abstract: Pesticidal and anti-inflammatory cyclopropyl compounds, cyclopropyl intermediates for the preparation of pesticidal compounds, especially chrysanthemic acid-like intermediates, and a process for preparing same.
    Type: Grant
    Filed: August 20, 1973
    Date of Patent: May 25, 1976
    Assignee: The Procter & Gamble Company
    Inventors: Donald John Peterson, Medford Dwight Robbins