Patents by Inventor F. David Wood

F. David Wood 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 alkali metal acyl amino acids
    Patent number: 5710295
    Abstract: A process of preparing alkali metal N-acyl amino acids, especially sodium N-acyl sarcosinates. The process of the invention eliminates the use of phosphorus trichloride or thionyl chloride and carboxylic acid chlorides. The process involves reacting the alkali metal N-acyl amino acid directly with a fatty acid at elevated temperatures with constant removal of water generated in the reaction.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 20, 1998
    Assignee: Hampshire Chemical Corp.
    Inventors: Richard P. Woodbury, Roger R. Gaudette, F. David Wood
  • Preparation of 3-mercaptopropionitrile and 3-mercaptopropionic acid
    Patent number: 5391820
    Abstract: Facile process for the production of 3-mercaptopropionitrile and 3-mercaptopropionic acid by reacting thiodipropionitrile with alkaline hydrosulfide in the presence of alkaline hydroxide. Acidification of the resulting reaction product with a strong acid, or saponification, yields the desired mercaptopropionic acid, which can be isolated in high yield.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: February 21, 1995
    Assignee: Hampshire Chemical Corp.
    Inventors: Richard P. Woodbury, F. David Wood