Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5059455 | Method for galvanizing perforated steel sheet | LaVurne R. Hasselbach, Donald P. Kennedy, Roger H. Montgomery, Samuel W. Moore | 1991-10-22 |
| 4964618 | Fence system and components | Charles G. Kennedy, Patrick McKeown | 1990-10-23 |
| 4838524 | Noise barrier | Patrick McKeown | 1989-06-13 |