Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6415549 | Water conservation plant container | Richard C. Beeson, Jr., Dorota Zofia Haman, Allen G. Smajstrla, Thomas H. Yeager | 2002-07-09 |
| 5568988 | Multi-part dispenser | Nguyen Thai Dang, John S. Frost, Stan Shofner | 1996-10-29 |
| 4613140 | Self-aligning lubricating stuffing box | — | 1986-09-23 |
| 4579350 | Packless stuffing box for polish rods | — | 1986-04-01 |