| 9963639 | Fixed carbon production device | Sep 13, 13 | May 08, 18 | Kyushu Electric Power Co. Inc. |
| 9951950 | Gas exchange termination system | Jun 06, 16 | Apr 24, 18 | Not available |
| 9896847 | Method of installing exhaust tube | Sep 02, 14 | Feb 20, 18 | NORITZ CORPORATION |
| 9890952 | Exhaust structure for combustion apparatus and construction method thereof | Apr 03, 15 | Feb 13, 18 | NORITZ CORPORATION |
| 9874113 | from combusted carbonaceous material | Jun 08, 15 | Jan 23, 18 | POWERDYNE, INC. |
| 9803857 | Apparatus and methods for reducing wood burning apparatus emissions | Dec 23, 09 | Oct 31, 17 | Not available |
| 9784447 | Flexible universal flue pipe connector with damper and sweep access (connector with damper and access) | Dec 27, 12 | Oct 10, 17 | Not available |
| 9765976 | Domestic cooking appliance with embossed locking system for a gas flue | May 24, 13 | Sep 19, 17 | BSH HOME APPLIANCES CORPORATION |
| 9726375 | Oxy fuel boiler system and a method of operating the same | Oct 17, 13 | Aug 08, 17 | GENERAL ELECTRIC TECHNOLOGY GMBH |
| 9719680 | Portable, free-standing exhaust system | May 02, 14 | Aug 01, 17 | Not available |
| 9657937 | Steam generation system having multiple combustion chambers and dry flue gas cleaning | Aug 23, 10 | May 23, 17 | SAUDI ARABIAN OIL COMPANY |
| 9651251 | Methods and systems for controlling gas temperatures | Jun 10, 16 | May 16, 17 | MITSUBISHI HITACHI POWER SYSTEMS AMERICAS, INC. |
| 9598742 | Exhaust processing and heat recovery system | Mar 16, 10 | Mar 21, 17 | ALSTOM ENERGY TECHNOLOGY AG, ARVOS LJUNGSTROM LLC, |
| 9581337 | Arrangement in the ventilation of a kitchen appliance | Nov 11, 04 | Feb 28, 17 | OY LINDAB AB |
| 9562702 | Air treatment apparatus and method | Nov 25, 11 | Feb 07, 17 | AKOS R&D LTD. |
| 9511360 | Catalytically effective composition for a multilayer catalyst for exhaust gas after-treatment of combustion exhaust gases | Feb 05, 15 | Dec 06, 16 | HERAEUS DEUTSCHLAND GMBH & CO. KG, Heraues Deutschland GmbH & Co. KG, |
| 9335044 | Cover for a chimney | Jul 16, 09 | May 10, 16 | Not available |
| 9322550 | Water seal at backpass economizer gas outlet | May 01, 12 | Apr 26, 16 | GENERAL ELECTRIC TECHNOLOGY GMBH |
| 9285066 | Positive pressure pipe coupling | Oct 29, 09 | Mar 15, 16 | CHEMINEE SECURITE INTERNATIONAL LTEE |
| 9273873 | Hollow draft inducers (draft inducers or hollow inducers) | Apr 27, 13 | Mar 01, 16 | Home Energy Technologies, Inc. |