| Patent No. | Patent Title: |
| 5023065 | Synthetic mica powder, manufacturing method thereof and cosmetics... |
| 5021230 | Method of making silicon carbide |
| 5009869 | Methods for purification of air |
| 5008090 | Catalytic process for minimizing the H2 S emissions fr... |
| 5004588 | Process for removal of hydrogen sulfide from gaseous stream |
| 5000933 | Process for hydrothermal production of sodium silicate solutions |
| 4997630 | Removal of CO2 and/or H2 S from gases |
| 4994107 | Aerosol reactor production of uniform submicron powders |
| 4992249 | Reduction of nitrogen- and carbon-based pollutants through the us... |
| 4992251 | Silicas |
| 4990318 | Selective removal of hydrogen sulfide over a nickel-promoted abso... |
| 4986971 | Method for production of trichloromonosilane |
| 4986972 | Method for making silicon nitride powder |
| 4985224 | Process for making silicon nitride whisker |
| 4983369 | Process for forming highly uniform silica spheres |
| 4983370 | Purified quartz and process for purifying quartz |
| 4983371 | Silicon nitride powder of low oxygen content |
| 4983368 | Method of producing ଲ-sialon fine powder |
| 4981665 | Hexagonal silicon carbide platelets and preforms and methods for ... |
| 4981672 | Composite coating for electrochemical electrode and method |
| 4981664 | Method of production of high purity silica and ammonium fluoride |
| 4980143 | Process for increasing the percentage of silicon tetrachloride |
| 4978516 | Process for treating talc |
| 4976933 | Hydrogen stream purification |
| 4976944 | Purification of silane gas |
| 4976943 | Spherical, hydrophilic silica, method of its preparation and use |
| 4976935 | Regeneration of solvent in H2 S removal from gases |
| 4973463 | Carbon black for tire tread |
| 4973462 | Process for producing high purity silica |
| 4971779 | Process for the pyrolytic conversion of a polymeric precursor ... |
| 4970057 | Silicon nitride vacuum furnace process |
| 4968500 | Continuous method for preparation of granulated sodium perborate |
| 4965058 | Polysiloxazanes, silicon oxynitride fibers and processes for prod... |
| 4961911 | Process for reducing carbon monoxide emissions from a fluidized b... |
| 4960575 | Removal of hydrogen sulfide with on site generated sulfite from ... |
| 4960576 | H2 S abatement in geothermal steam during stacking ope... |
| 4959200 | Process for manufacturing silane |
| 4957715 | Gas treatment process |
| 4956162 | Process for removal of particulates and SO2 from combu... |
| 4956167 | Silicas |
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