Patents by Inventor Alfred E. Lippman

Alfred E. Lippman 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).

  • Preparation of dialkyl phosphorochloridothioates
    Patent number: 4025586
    Abstract: This invention relates to a method of preparing dialkyl phosphorochloridothioates in which unconverted bis-(thiophosphono)sulfide is washed and returned to the chlorinator.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: May 24, 1977
    Assignee: Monsanto Company
    Inventor: Alfred E. Lippman