Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4963178 | Apparatus for making quartz glass crucibles | David R. Brown, Charles E. Frost | 1990-10-16 |
| 4819879 | Particle spray gun | John Sharpless, Alan J. Knobbe, Gerald W. Crum | 1989-04-11 |
| 4713104 | Quartz glass crucibles | David R. Brown, Charles E. Frost | 1987-12-15 |
| 4632686 | Method of manufacturing quartz glass crucibles with low bubble content | David R. Brown, Charles E. Frost | 1986-12-30 |