| 8939093 | Boiler grate and a boiler | Jan 18, 12 | Jan 27, 15 | VALMET POWER OY |
| 8602020 | Fire grate for enhanced combustion with vertical and horizontal expansion sleeves | Mar 08, 10 | Dec 10, 13 | Earth's Flame, Inc. |
| 7721727 | Cooking stove | May 04, 07 | May 25, 10 | PALOMA INDUSTRIES, LIMITED |
| 6513445 | Plant and grate block for the thermal treatment of waste materials | Aug 17, 00 | Feb 04, 03 | VON ROLL UMWELTTECHNIK AG |
| 6405661 | Combustion enhancing air foil | Mar 22, 01 | Jun 18, 02 | New York State Electric & Gas Corporation |
| 6332410 | Grate for incineration plants | Aug 12, 99 | Dec 25, 01 | ALSTOM |
| 6024031 | Water-cooled thrust combustion grate | Apr 21, 98 | Feb 15, 00 | DOIKOS INVESTMENTS LTD. |
| 5992334 | Loose-material grate with volumetric control of gaseous coolant | Aug 15, 97 | Nov 30, 99 | Not available |
| 5983811 | Method and roller grill for burning refuse | Nov 07, 97 | Nov 16, 99 | DEUTSCHE BABCOCK ANLAGEN GMBH |
| 5967064 | Roller grate | Nov 07, 97 | Oct 19, 99 | DEUTSCHE BABCOCK ANLAGEN GMBH |
| 5871348 | Method and apparatus for preventing formation of snowmen and removing lumps of coating in clinker coolers | Nov 10, 97 | Feb 16, 99 | THYSSENKRUPP POLYSIUS AKTIENGESELLSCHAFT |
| 5701881 | Fire grate having fluctuational profile in circumferential direction thereof | Sep 28, 95 | Dec 30, 97 | Not available |
| 5245983 | Grate bar and grate for combustion plants | Feb 14, 92 | Sep 21, 93 | Noell K+K Abfalltechnik |
| 5226405 | Ignition platform and fuel component for kindling a fire | Mar 05, 92 | Jul 13, 93 | Not available |
| 5036830 | Method and apparatus for burning stacked newspapers in a fireplace or stove | Oct 17, 90 | Aug 06, 91 | Not available |
| 4771760 | Method and apparatus for burning stacked newspapers in a fireplace | May 11, 87 | Sep 20, 88 | CAPRIOTTI, DALE M. |
| 4515147 | Clean burning grate for fireplaces and wood stoves | Jan 23, 84 | May 07, 85 | Not available |
| 4471757 | Log support for fireplace | Mar 15, 83 | Sep 18, 84 | Not available |
| 4469085 | Grille for burning solid fuels in stoves, hearths, ovens, and others | Mar 11, 83 | Sep 04, 84 | V.F.M. Verkoop en Fabrikatie van Metaalprodukten Naamloze Vennootscap, V.F. M. VERKOOP EN FABRIKATIE VAN METAALPRODUKTEN NAAMLOZE VENNOOT-SCHAP, A COMPANY OF BELGIUM, |
| 4466358 | Solid fuel warm air furnace | Feb 14, 83 | Aug 21, 84 | Not available |