Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6038868 | Freezer apparatus | Carl N. Strotton, David G. Wardle | 2000-03-21 |
| 5813237 | Cryogenic apparatus and method for spraying a cryogen incorporating generation of two phase flow | Mark T. Grace, David G. Wardle, Ron C. Lee | 1998-09-29 |
| 5486226 | Separation of gaseous mixtures | Ian A. Ross | 1996-01-23 |