Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6622500 | Energy-efficient capacity control method for an air conditioning compressor | Charles Andrew Archibald, Karma Vir Sangwan, Thomas Martin Urbank | 2003-09-23 |
| 6588222 | Low-cost energy-efficient vehicle air conditioning system | Thomas Martin Urbank, Karma Vir Sangwan, Charles Andrew Archibald | 2003-07-08 |