Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6511204 | Light tube | John J. Emmel, Daniel A. Japuntich, James E. Nash | 2003-01-28 |
| 5993940 | Composite used for light control of privacy | Andrew J. Ouderkirk, Olester Benson, Jr., Wayne K. Darvell, Douglas S. Dunn, Tanya M. Laine +4 more | 1999-11-30 |
| 5858139 | Composite used for light control or privacy | Andrew J. Ouderkirk, Olester Benson, Jr., Wayne K. Darvell, Douglas S. Dunn, Tanya M. Laine +4 more | 1999-01-12 |
| 5620162 | Adjustable paper holder | Tanya L. Beckwith, Wayne K. Darvell, Lawrence J. Fenske, Kenneth J. Kirchhoff, Steven C. Suchanek +1 more | 1997-04-15 |