Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5383600 | Vandal resistant part circle pop-up gear driven rotary irrigation sprinkler | Steven Verbera | 1995-01-24 |
| 4787558 | Rotary drive sprinkler | George H. Lockwood, David Eugene Robertson, Joseph D. Mason, Mark J. Mattson, Robert W. Patterson | 1988-11-29 |
| 4625914 | Rotary drive sprinkler | George H. Lockwood, David Eugene Robertson, Joseph D. Mason, Mark J. Mattson, Robert W. Patterson | 1986-12-02 |