Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H1013 | Process for the immobilization and volume reduction of low level | Richard Franklin Wormsbecher, David N. Hill | 1992-01-07 |
| 4627903 | Electrode for an electrostatic atomizing device | David N. Hill | 1986-12-09 |
| 4253221 | Method of producing low voltage field emission cathode structure | Joe K. Cochran, Jae Do Lee | 1981-03-03 |