Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834917 | Encapsulation of waste materials | Albert E. Ringwood | 1989-05-30 |
| 4808337 | Hot pressing of bellows like canisters | Wilhelmus J. Bukyx, John G. Padgett, Alfred E. Ringwood | 1989-02-28 |
| 4806098 | Heat transfer and stabilizing apparatus | Wilhelmus J. Bukyx, John G. Padgett, Alfred E. Ringwood | 1989-02-21 |
| 4806279 | Method of producing impregnated synthetic rock precursor | — | 1989-02-21 |
| 4798524 | Apparatus for forming ceramics | — | 1989-01-17 |