Patents by Inventor Leroy E. Leonard

Leroy E. Leonard 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).

  • Solid-state radiation-emitting compositions and devices
    Patent number: 5122305
    Abstract: The invention relates to a composition for the volumetric generation of radiation, wherein a first substance functions as a source of exciting radiation, and a second substance interacts with the exciting radiation to provide a second radiation. The compositions comprise a porous substrate which is loaded with: a source of exciting radiation, a component capable of emitting radiation upon interaction with the exciting radiation, or both. In the composition, a composite is formed from a carrier material and at least one of the source of the exciting radiation or the component which is capable of interacting with the exciting radiation. The composite is then employed for loading a porous substrate, preferably an aerogel substrate.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: June 16, 1992
    Inventors: Carol S. Ashley, C. Jeffrey Brinker, Scott Reed, Timothy J. Shepodd, Leroy E. Leonard, Robert E. Ellefson, John T. Gill, Robert J. Walko, Clifford L. Renschler