Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10675561 | Sulfur seal device | Brandon W. Forbes, Thomas C. Willingham, George A. Hearn | 2020-06-09 |
| 9993746 | Sulfur seal device | Brandon W. Forbes, Thomas C. Willingham, George A. Hearn | 2018-06-12 |
| 9522346 | Sulfur seal device | Brandon W. Forbes, Thomas C. Willingham, George A. Hearn | 2016-12-20 |
| 4579462 | Dew point measuring apparatus | Dieter L. Rall | 1986-04-01 |
| 4274475 | Control apparatus for regulating building perimeter temperature change system | Dieter L. Rall, William W. Sawyer | 1981-06-23 |