Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8968480 | Method of sequestering hydrocarbons or vegetable derived oil contaminants from a surface | Phillip D. Calvert | 2015-03-03 |
| D362904 | Evaporative cooling housing | Philip D. Calvert | 1995-10-03 |
| D362905 | Evaporative cooler housing | Philip D. Calvert | 1995-10-03 |
| 5238451 | Light eliminator for poultry house | Robert Barnwell | 1993-08-24 |