| Patent No. | Patent Title: |
| 4406702 | Additive compositions for hydraulic cement base mixtures |
| 4385044 | Treatment of contaminated Stretford solution |
| 4379777 | Purification of metallurgical grade silicon |
| 4378342 | Process for the manufacture of potassium nitrate |
| 4377564 | Method of producing silicon |
| 4376724 | Rhodium catalyst and method for preparing the same |
| 4376808 | Lining unit |
| 4376105 | Process for producing nitrous oxide |
| 4374819 | Catalytic process for removing toxic gases from gas streams |
| 4374103 | Method of using a low cost catalyst system |
| 4374104 | Composition and method for removing hydrogen sulfide from gas str... |
| 4373704 | Apparatus for refining molten metal |
| 4372940 | Process and apparatus for treatment of thiosulfate containing liq... |
| 4372935 | NOx Removal from NOx /O2 gaseous... |
| 4372540 | Apparatus for oxygen sprinkle smelting of sulfide concentrates |
| 4372932 | Process for removing SOx and NOx compounds ... |
| 4370367 | Self-bonding flame spray wire for producing a readily grindable c... |
| 4369061 | Recovery of precious metals from difficult ores |
| 4369100 | Method for enhancing chemical reactions |
| 4368181 | Method of producing ଲ-silicon carbide |
| 4367212 | Control of thiosulfate in wet desulfurization process solutions |
| 4367211 | Plasma arc process for the reduction of sulfur dioxide to sulfur |
| 4366137 | Process for producing silicon |
| 4364918 | Separation of thiosulfate from Stretford solution |
| 4364908 | Method for purifying titanyl hydrate |
| 4364914 | Process for the manufacture of potassium nitrate with co-producti... |
| 4363656 | Injection of hot gases into shaft furnace |
| 4363790 | Desulfurization of H2 S containing gas streams with pr... |
| 4361543 | Process for producing polycrystals of cubic boron nitride |
| 4360380 | Process for recovery of metal values from sludges |
| 4360189 | Quench press |
| 4359210 | Temperature control apparatus |
| 4359452 | Process for the production of insoluble sulfur |
| 4358428 | Method of removing nitrogen oxides from waste gas by selective co... |
| 4356159 | Method of recovering bromine from methyl bromide |
| 4356161 | Process for reducing the total sulfur content of a high CO2<... |
| 4353884 | Method for synthesizing boracities |
| 4353885 | Titanium diboride article and method for preparing same |
| 4351514 | Apparatus for purifying molten metal |
| 4350326 | Apparatus for heat recovery from molten slag |
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