Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11055947 | Modular vending system for propane cylinders | Leonard J. Halsey, JR. | 2021-07-06 |
| 10699510 | Modular vending system for propane cylinders | Leonard J. Halsey, JR. | 2020-06-30 |
| 10008068 | Modular vending systems for propane cylinders | Leonard J. Halsey, JR. | 2018-06-26 |