Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5318104 | Error based zone controller | Dipak J. Shah, J. Ward MacArthur, Eric W. Grald, Lorne W. Nelson | 1994-06-07 |
| 5024265 | Zone control system providing synchronization of system operation with the zone of greatest demand | Eric W. Grald, Lorne W. Nelson, Dipak J. Shah | 1991-06-18 |