Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9289712 | Air filter arrangements; assemblies; and, methods | Benny K. Nelson, John David Kuhn, David W. Nelson | 2016-03-22 |
| 5975430 | Sprinkler device | — | 1999-11-02 |
| 4509686 | Water sprinkling apparatus | — | 1985-04-09 |
| 4283055 | Puzzle type toy | — | 1981-08-11 |