Patents by Inventor Robert L. Derby

Robert L. Derby 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).

  • Synthetic resinous polymer containing biologically active organic material
    Patent number: 4460572
    Abstract: A fumigant swellable fumigant insoluble cross-linked polymer is swollen with volatile fumigant such as 1,3-dichloropropene. Fumigant is released at a slower rate than if polymer is not employed.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: July 17, 1984
    Assignee: The Dow Chemical Company
    Inventors: Robert L. Derby, Richard H. Hall, Howard L. Young
  • Disposal system
    Patent number: 4019628
    Abstract: Hazardous materials such as askarels, chlorinated hydrocarbons or other ecologically undesirable liquids are disposed of by gelling the liquid within a combustible package and subsequently shipping the package to a qualified disposal site, such as an incinerator, which can incinerate halogenated hydrocarbons in an ecologically sound manner.
    Type: Grant
    Filed: October 30, 1974
    Date of Patent: April 26, 1977
    Assignee: The Dow Chemical Company
    Inventor: Robert L. Derby