Patents by Inventor Richard Frederick Stockel

Richard Frederick Stockel 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).

  • Method of preparing 3,3-Bis (chloromethyl) oxetane
    Patent number: 4031110
    Abstract: 3,3-Bis (chloromethyl) oxetane is prepared by a method which comprises reacting N,N-dimethyl formamide with thionyl chloride to produce Vilsmeier reagent, followed by the reaction of the Vilsmeier reagent with pentaerythritol to produce pentaerythritol monochlorohydrin. The pentaerythritol monochlorohydrin is then reacted with thionyl chloride to produce pentaerythritol trichlorohydrin, followed by the reaction of pentaerythritol trichlorohydrin with an alkali metal hydroxide or an alkaline earth metal hydroxide to 3,3-bis (chloromethyl) oxetane.
    Type: Grant
    Filed: July 13, 1976
    Date of Patent: June 21, 1977
    Assignee: National Patent Development Corporation
    Inventors: Richard Frederick Stockel, Peter Carl Valenti
  • N,N-dichloro substituted aminocarboxylic acids as microbiocides
    Patent number: 4015008
    Abstract: N-chloro nitrogen-containing carboxylic acids have been found to be useful as microbiocides in topical treatment of the skin and mucous membranes.
    Type: Grant
    Filed: September 10, 1975
    Date of Patent: March 29, 1977
    Assignee: National Patent Development Corporation
    Inventors: Sol Joseph Barer, Richard Frederick Stockel, Peter Carl Valenti
  • N,N-Dichloro substituted aminocarboxylic acids as bactericides and fungicides
    Patent number: 3950536
    Abstract: N-chloro nitrogen-containing carboxylic acids have been found to be useful as microbiocides in topical treatment of the skin and mucous membranes.
    Type: Grant
    Filed: February 1, 1974
    Date of Patent: April 13, 1976
    Inventors: Sol Joseph Barer, Richard Frederick Stockel, Peter Carl Valenti