Patents by Inventor Dominic C. Cataldo

Dominic C. Cataldo 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 making controlled released devices
    Patent number: 5856271
    Abstract: The invention is a method of making a controlled release device that is free of defects. According to one aspect of the present invention, a method has the steps of first combining an active chemical with a dried carrier into a bound friable mixture followed by combining the bound friable mixture with a polymer preform prior to forming a device. According to another aspect of the present invention, a method has the steps of heating and mixing a casting urethane with an active chemical into a first solution, heating and mixing a trialkanolamine with a soft segment cross-linker into a second solution, and mixing the two solutions. A further aspect of the present invention is a composition of a casting urethane.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: January 5, 1999
    Assignee: Battelle Memorial Institute
    Inventors: Dominic C. Cataldo, Peter Van Voris