Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5341719 | Multi-layer composite gun barrel | Stephen J. Bullis, Peter C. Wolff | 1994-08-30 | $16,502,000 |
| 4669212 | Gun barrel for use at high temperature | Melvin Robert Jackson, Paul A. Siemers | 1987-06-02 | $13,655,000 |
| 4577431 | Wear resistant gun barrel and method of forming | Paul A. Siemers, Robert W. Kopp, Melvin Robert Jackson, Steven R. Duke, Ying Liu | 1986-03-25 | $5,413,000 |