Patents by Inventor Quentin Francis Soper

Quentin Francis Soper 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 controlling aquatic weeds
    Patent number: 4056382
    Abstract: A method of controlling aquatic weeds which comprises adding to a body of water containing the aquatic weeds a substituted thiadiazolylurea in sufficient quantity to kill the weeds.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: November 1, 1977
    Assignee: Eli Lilly and Company
    Inventor: Quentin Francis Soper
  • Method of controlling aquatic weeds
    Patent number: 3990879
    Abstract: A method of controlling aquatic weeds which comprises adding to a body of water containing the aquatic weeds a substituted 1-thiadiazolyl-3-arylurea in sufficient quantity to kill the weeds.
    Type: Grant
    Filed: December 26, 1974
    Date of Patent: November 9, 1976
    Assignee: Eli Lilly and Company
    Inventor: Quentin Francis Soper