Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9523538 | High-efficiency enhanced boiler | John E. Okonski, Sr. | 2016-12-20 |
| 8814176 | Device for sealing intersecting joints | — | 2014-08-26 |
| 7413004 | High-efficiency enhanced boiler | John E. Okonski, Sr. | 2008-08-19 |