Patents by Inventor Joseph B. Holtwick

Joseph B. Holtwick 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).

  • O,O-dialkyl phosphoramidothioate plant growth enhancers
    Patent number: 4702761
    Abstract: O,O-dialkyl phosphoramidothioates, such as O,O-dimethyl phosphoramidothioate, enhance the growth of gramineous crop plants when applied to the growing plant in small quantities. The forage and ensilage yield of maize and sorghum are increased as is the grain yield of maize.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: October 27, 1987
    Assignee: The Dow Chemical Company
    Inventors: Maria P. Herrero, Joseph B. Holtwick