Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4480594 | Economizer support | Robert P. Sullivan | 1984-11-06 |
| 4314130 | Method of making variably rifled tubes | Thomas L. Mabery | 1982-02-02 |
| 4270690 | Method of forming variably rifled tubes | Thomas L. Mabery | 1981-06-02 |