Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8915015 | Solar greenhouse | — | 2014-12-23 |
| 7109847 | Closure security seal with time-recording feature | James W. Hill | 2006-09-19 |
| 6933844 | Closure security seal with time-recording feature | James W. Hill | 2005-08-23 |
| 5300438 | Composting apparatus | Charles H. Bartlett | 1994-04-05 |
| 5050865 | Cycle training device | Charles H. Bartlett | 1991-09-24 |
| 4817939 | Cycle training device | Charles H. Bartlett | 1989-04-04 |