Patents by Inventor Edward R. Ritchey

Edward R. Ritchey 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).

  • Control of algae, aquatic plants, and the like
    Patent number: 3948632
    Abstract: An algaecide-herbicide composition of matter and process for applying same. The matter comprises a major proportion of a first compound having an alkanolamine and a copper salt selected from the group consisting of copper sulfate, copper chloride, copper acetate, copper nitrate, and mixtures thereof, and a minor proportion of a second compound having the formula ##EQU1## wherein R is selected from the group consisting of sodium, potassium, and mixtures thereof.
    Type: Grant
    Filed: April 8, 1974
    Date of Patent: April 6, 1976
    Inventor: Edward R. Ritchey