Class F22D : PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; FEED-WATER SUPPLY; CONTROLLING WATER LEVEL; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN BOILERS
Subclass 1/16: Feed-water heaters, e.g. preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10180086 | Heat exchanging system and method for a heat recovery steam generator | Sep 23, 14 | Jan 15, 19 | Nooter Eriksen Inc. |
| 8973658 | Heat recovery method for wellpad SAGD steam generation | Mar 02, 12 | Mar 10, 15 | CONOCOPHILLIPS COMPANY |
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