Patents by Inventor Donald A. Derby

Donald A. 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).

  • Patent number: 4910975
    Abstract: A device for cooling condiments, beverages and the like. The device includes an insulated chest which receives a cooling medium therein. The chest also carries a first stationary compartment and at least one second compartment. The chest has a base wall, side walls and an open top. The stationary compartment has a bottom wall, side walls, open top and a depth defined between the open top and the bottom wall thereof. Each of the second compartments has a respective bottom wall, side walls, open top and a depth defined between the open top and the bottom wall. The depth of the second compartment is less than the depth of the stationary compartment. Each of the compartments is positioned extending into the chest. Positioned thusly, the cooling medium directly contacts each of the bottom walls and at least two of the side walls of the stationary compartment, such that condiments therein are substantially surrounded by the cooling medium.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: March 27, 1990
    Inventor: Donald A. Derby
  • Patent number: 3960897
    Abstract: A method for the preparation of macrocyclic compounds comprising heating a mixture of a cyclic peroxide and an alkane solvent.
    Type: Grant
    Filed: March 29, 1974
    Date of Patent: June 1, 1976
    Assignee: Research Corporation
    Inventors: Paul Richard Story, Peter Busch, Donald Derby Denson, Carl Edward Wright