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| 9970654 | Combustion device for improving turndown ratio | Apr 15, 13 | May 15, 18 | Kyungdong Navien Co., Ltd. |
| 9970657 | Pressure relief valve with rotating damper | Jan 16, 14 | May 15, 18 | STEFFES CORPORATION |
| 9958158 | Powdered fuel conversion systems | Apr 16, 15 | May 01, 18 | Not available |
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| 9932874 | Reducing oxygen in a gas turbine exhaust | Feb 17, 14 | Apr 03, 18 | ExxonMobil Upstream Research Company |
| 9927121 | Servo gas system, gas burner and method for operating the gas burner | Jul 29, 14 | Mar 27, 18 | HONEYWELL TECHNOLOGIES SARL |
| 9920937 | Heating system | Jan 16, 17 | Mar 20, 18 | ProGreen Labs, LLC |
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| 9897315 | Safety device against combustible gas leaks for household appliances | Jul 15, 10 | Feb 20, 18 | ELTEK S.P.A. |
| 9879859 | Combustion apparatus supplying combustion air via suction type fan and method for controlling the same | Jul 22, 15 | Jan 30, 18 | NORITZ CORPORATION |
| 9857078 | Signal responsive well test burner | Feb 01, 13 | Jan 02, 18 | HALLIBURTON ENERGY SERVICES, INC. |
| 9845732 | Systems and methods for variation of injectors for coherence reduction in combustion system | May 28, 14 | Dec 19, 17 | GENERAL ELECTRIC COMPANY |
| 9822730 | Floating rod seal for a stirling cycle machine | Mar 15, 13 | Nov 21, 17 | NEW POWER CONCEPTS LLC |
| 9816845 | Boiler load analysis apparatus | Oct 28, 13 | Nov 14, 17 | MIURA CO., LTD. |
| 9811814 | Chemically heated hot emitter generator system | Aug 27, 13 | Nov 07, 17 | GREENLIGHT INDUSTRIES, INC. |
| 9803862 | Control system and method for a solid fuel combustion appliance | May 23, 11 | Oct 31, 17 | MAXITROL COMPANY |
| 9797595 | Fuel combustion system with a perforated reaction holder | Feb 14, 14 | Oct 24, 17 | CLEARSIGN COMBUSTION CORPORATION |