F27B 1/22

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9809495 Method for the closed-cell expansion of mineral materialOct 04, 12Nov 07, 17BINDER + CO AG
9683781 Indirect-heat thermal processing of bulk solidsAug 13, 15Jun 20, 17SOLEX THERMAL SCIENCE INC.
9625176 Low emissions direct fired air heaterOct 15, 10Apr 18, 17PROTO-TECHNICS, INC.
9605326 Method and system for operating a blast furnace with top-gas recycle and a fired tubular heaterJul 03, 13Mar 28, 17HYL TECHNOLOGIES, S.A. DE C.V.
8890036 Vacuum ovenMar 12, 13Nov 18, 14IBEX DENTAL TECHNOLOGIES, INC.
8487220 Vacuum ovenNov 18, 10Jul 16, 13IBEX DENTAL TECHNOLOGIES, INC.
4830093 Method and apparatus for utilizing waste heat in a combustion systemDec 29, 86May 16, 89ENERGY ENVIRONMENTAL DEVELOPMENT CO., INC.
4470581 Apparatus for selective reduction of metallic oxidesJan 20, 83Sep 11, 84Midrex International B.V. Zurich Branch
4369955 Cupola furnace systemNov 10, 80Jan 25, 83Not available
4340207 Waste heat recovery apparatusDec 03, 79Jul 20, 82DRAVO CORPORATION
4221638 Fluid-solid contact vessel having fluid distributors thereinJan 05, 76Sep 09, 80Paraho Corporation