Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422115 | Lighting device with battery backup | Michael G. Hanley | 2025-09-23 |
| 4932467 | Multi-channel heat exchanger with uniform flow distribution | David B. Wigmore | 1990-06-12 |
| 4883117 | Swirl flow heat exchanger with reverse spiral configuration | David B. Wigmore, Richard E. Niggemann | 1989-11-28 |