Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979338 | Cryogenic deflashing apparatus and method of use | David T. Stearns | 1990-12-25 |
| 4648214 | Cryogen shot blast deflashing system | John J. Brull | 1987-03-10 |
| 4355488 | Cryogenic deflashing method | David T. Stearns, Erwin Stegmann, Thomas E. McWhorter, Warren F. Geiger, Thomas J. Abrahamsen | 1982-10-26 |