Patents by Inventor Steven P. Hardebeck

Steven P. Hardebeck 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).

  • Low-temperature and low pressure unsaturated polyester resin composition
    Patent number: 6228918
    Abstract: The invention relates to a product and process for producing molded unsaturated polyester products. An unsaturated polyester is formulated with two initiators in combination with two reagents which scavenge free radicals; one of the scavengers traps free radicals which occur at low temperatures of 20 to 50° C.; whereas the second scavenger traps free radical which are produced and occur in the compositions at temperatures above those low temperatures. The compositions of the invention eliminate premature gelling and insure shelf life.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: May 8, 2001
    Assignee: Gil Technologies
    Inventor: Steven P. Hardebeck