Assignee
- Alterra Energy
- Canadian Occidental Petroleum
- Esso Resources Canada Limited
- Gulf Canada Resources Limited
- Hbog-Oil Sands Limited
- Pan Canadian Petroleum Limited
- Petro-Canada
Inventors
- Anthony H. S. Leung (1 patents)
- George Cymerman (12 patents)
- Waldemar Maciejewski (8 patents)