Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6254981 | Fused glassy particulates obtained by flame fusion | — | 2001-07-03 |
| 6045913 | At least partly fused particulates and methods of making them by flame fusion | — | 2000-04-04 |
| 5883029 | Compositions comprising fused particulates and methods of making them | — | 1999-03-16 |
| 5641717 | Compositions comprising fused particulates and methods of making same | — | 1997-06-24 |
| 5559170 | Compositions comprising fused particulates and methods of making them | — | 1996-09-24 |
| 4493875 | Proppant for well fractures and method of making same | Warren R. Beck | 1985-01-15 |
| 4432172 | Breakaway timber support poles | Charles R. Kuykendall | 1984-02-21 |