Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12384712 | Systems and method for producing hollow quartz cylinders | Eugene Anthony Pruss, Frederic F. Ahlgren, Michael Plate, Theodore Kircher | 2025-08-12 |
| 7452518 | Process for treating synthetic silica powder and synthetic silica powder treated thereof | Richard L. Hansen, Theodore Kircher | 2008-11-18 |