Class F22D : PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; FEED-WATER SUPPLY; CONTROLLING WATER LEVEL; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN BOILERS
Subclass 1/32: Feed-water heaters, e.g. preheaters arranged to be heated by steam, e.g. bled from turbines
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12129773 | Start-up and control of liquid salt energy storage combined cycle systems | May 17, 23 | Oct 29, 24 | PINTAIL POWER LLC |
| 11927344 | System and method for warmkeeping sub-critical steam generator | Dec 23, 21 | Mar 12, 24 | General Electric Technology GmbH |
| 11512902 | Flow baffles for shell and tube heat exchangers | Apr 11, 19 | Nov 29, 22 | Holtec International Inc. |
| 11448394 | Boiler feed tank energy recapture system | Jul 26, 19 | Sep 20, 22 | Daniel Steam, Inc. |
| 11326471 | System and method to improve boiler and steam turbine start-up times | Dec 01, 20 | May 10, 22 | General Electric Company |
| 11236640 | Steam power plant, modification method and operation method of steam power plant | Jul 15, 20 | Feb 01, 22 | MITSUBISHI POWER, LTD. |
| 11092040 | Combined heat recovery device | Jul 10, 18 | Aug 17, 21 | Not available |
| 10968785 | Waste heat recovery systems with heat exchangers | May 09, 18 | Apr 06, 21 | Cummins Inc. |
| 10968783 | Thermal power generation system and control method for same | Feb 21, 17 | Apr 06, 21 | MITSUBISHI POWER, LTD. |
| 10845049 | Steam power generating system with injection feedwater heater | Jul 31, 18 | Nov 24, 20 | Not available |
| 10787934 | Steam turbine plant | Apr 17, 17 | Sep 29, 20 | MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
| 10788204 | Injection feedwater heater for steam power generating system | Jul 31, 18 | Sep 29, 20 | Not available |
| 10634339 | Once-through vertical tubed supercritical evaporator coil for an HRSG | Oct 09, 15 | Apr 28, 20 | Nooter Eriksen Inc. |
| 10514183 | Exhaust gas latent heat recovery device | Jul 15, 16 | Dec 24, 19 | MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
| 10393369 | System and method for fluid medium preheating | Mar 27, 15 | Aug 27, 19 | General Electric Company |
| 10364979 | Boiler feed tank energy recovery system | Aug 26, 16 | Jul 30, 19 | Daniel Steam, Inc. |
| 10364708 | Rankine cycle apparatus, combined heat and power system, and rankine cycle apparatus operation method | Jun 05, 15 | Jul 30, 19 | Panasonic Intellectual Property Management Co., Ltd. |
| 10287926 | Supercritical CO2 generation system applying recuperator per each heat source | Oct 20, 16 | May 14, 19 | Doosan Heavy Industries Construction Co., Ltd. |
| 10196939 | Method for low load operation of a power plant with a once-through boiler | Jul 23, 15 | Feb 05, 19 | General Electric Technology GmbH |
| 9927117 | Fossil-fuel power plant and fossil-fuel power plant operation method | Mar 31, 14 | Mar 27, 18 | Electric Power Development Co. Ltd. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0043,701 | START-UP AND CONTROL OF LIQUID SALT ENERGY STORAGE COMBINED CYCLE SYSTEMS | Oct 23, 24 | Feb 06, 25 | PINTAIL POWER LLC |
| 2025/0012,207 | POWER GENERATION FACILITY | Sep 20, 24 | Jan 09, 25 | KABUSHIKI KAISHA TOSHIBA; Toshiba Energy Systems & Solutions Corporation; |
| 2024/0117,759 | POWER GENERATION FACILITY | Jul 19, 23 | Apr 11, 24 | KABUSHIKI KAISHA TOSHIBA; Toshiba Energy Systems & Solutions Corporation; |
| 2020/0041,120 | Injection Feedwater Heater for Steam Power Generating System | Jul 31, 18 | Feb 06, 20 | Not available |
| 2020/0041,121 | Steam Power Generating System with Injection Feedwater Heater | Jul 31, 18 | Feb 06, 20 | Not available |
| 2020/0025,367 | Boiler Feed Tank Energy Recapture System | Jul 26, 19 | Jan 23, 20 | Not available |
| 2015/0114,319 | FEEDWATER PREHEATING SYSTEM AND METHOD | Oct 24, 14 | Apr 30, 15 | GENERAL ELECTRIC TECHNOLOGY GMBH |
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