Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11073341 | Basket for heat transfer elements for a rotary air preheater | Lawrence G. Cowburn, James Leslie Bice | 2021-07-27 |
| 9644899 | Heating element undulation patterns | Lawrence G. Cowburn, Dennis R. Grantier, Jeffery E. Yowell | 2017-05-09 |