Patents by Inventor Clifford J. Hull, Jr.

Clifford J. Hull, Jr. 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).

  • Storage stable azadirachtin formulation
    Patent number: 5124349
    Abstract: Storage stable pesticide compositions comprising neem seed extracts which contain azadirachtin as the active pesticidal ingredient wherein the compositions are characterized by their non-degrading solvent systems. In a first embodiment, the pesticide compositions contain solvent systems characterized as having greater than 50% by volume aprotic solvents and less than 15% by volume water. In a second embodiment, the pesticide compositions contain solvent systems characterized as having greater than 50% by volume alcohol and less than 5% by volume water. The pesticide compositions contain surfactant concentrations of at least about 1.0%, up to 10%.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: June 23, 1992
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Charles G. Carter, Clifford J. Hull, Jr., Narender P. Luthra, James F. Walter
  • Storage stable azadirachtin formulation
    Patent number: 5001146
    Abstract: Storage stable pesticide compositions comprising neem seed extracts which contain azadirachtin as the active pesticidal ingredient wherein the compositions are characterized by their non-degrading solvent systems. In a first embodiment, the pesticide compositions contain solvent systems characterized as having greater than 50% by volume aprotic solvents and less than 15% by volume water. In a second embodiment, the pesticide compositions contain solvent systems characterized as having greater than 50% by volume alcohol and less than 5% by volume water.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: March 19, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Charles G. Carter, Clifford J. Hull, Jr., Narender P. Luthra, James F. Walter