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| 9841193 | Device for improving combustion in a fireplace | Nov 22, 13 | Dec 12, 17 | FINOPTIM S.A.S. |
| 9568214 | Systems and methods for heating water using biofuel | Aug 25, 15 | Feb 14, 17 | GREENWOOD CLEAN ENERGY, INC. |
| 9500373 | Fireplace | Apr 29, 11 | Nov 22, 16 | SCHOTT AG |
| 9441839 | Heating apparatus with fan | Jul 28, 11 | Sep 13, 16 | Not available |
| 9115900 | Systems and methods for heating water using biofuel | Aug 08, 11 | Aug 25, 15 | GREENWOOD CLEAN ENERGY, INC. |
| 8978639 | Secondary room air heat exchanger and method of heating secondary room air | Oct 14, 11 | Mar 17, 15 | HEARTH & HOME TECHNOLOGIES INC. |
| 8915240 | Heating device | Oct 14, 11 | Dec 23, 14 | INNOVATIVE HEARTH PRODUCTS LLC |
| 8333184 | Cool touch fireplace | Jan 07, 10 | Dec 18, 12 | Heat Surge, LLC |
| 8166965 | Fireplace insert | Jun 16, 05 | May 01, 12 | MILES INDUSTRIES, LTD. |
| 7854223 | Heat exchanger for a log-burning fireplace | Jul 16, 08 | Dec 21, 10 | LATIMER, MARGARET R. |
| 6766798 | Supplemental air directing extension frame for a fireplace | Apr 02, 02 | Jul 27, 04 | Not available |
| 5979437 | Air control apparatus for a fireplace | Sep 25, 97 | Nov 09, 99 | Not available |
| 5934270 | Fireplace heat exchange device | Jan 30, 97 | Aug 10, 99 | Not available |
| 5782231 | Direct vent fireplace | Feb 24, 97 | Jul 21, 98 | FROST NATIONAL BANK (SUCCESSOR-IN-INTEREST TO PARKDALE BANK,INC.), THE VERMONT CASTINGS MAJESTIC PRODUCTS COMPANY, |
| 5701882 | Fireplace with ceramic fiber duct | Dec 15, 95 | Dec 30, 97 | MAJESTIC PRODUCTS COMPANY, THE, MONESSEN HEARTH SYSTEMS COMPANY, |
| 5626127 | Clean face air circulating fireplace | Feb 22, 95 | May 06, 97 | MAJESTIC PRODUCTS COMPANY, THE, MONESSEN HEARTH SYSTEMS COMPANY, |
| 5617842 | Fireplace with outer housing cooling system | Jan 24, 95 | Apr 08, 97 | MAJESTIC PRODUCTS COMPANY, THE, MONESSEN HEARTH SYSTEMS COMPANY, |
| 5553604 | Space heating system, heater, and combustion chamber | Apr 14, 94 | Sep 10, 96 | Not available |