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Feigelson
Boris Feigelson, Springfield, VA US
Boris N. Feigelson, Springfield, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20080229549 | Method of growing group III nitride crystals - This disclosure pertains to a process for making single crystal Group III nitride, particularly gallium nitride, at low pressure and temperature, in the region of the phase diagram of Group III nitride where Group III nitride is thermodynamically stable comprises a charge in the reaction vessel of (a) Group III nitride material as a source, (b) a barrier of solvent interposed between said source of Group III nitride and the deposition site, the solvent being prepared from the lithium nitride (Li | 09-25-2008 |
| 20110123425 | GaN Whiskers and Methods of Growing Them from Solution - Millimeter-scale GaN single crystals in filamentary form, also known as GaN whiskers, grown from solution and a process for preparing the same at moderate temperatures and near atmospheric pressures are provided. GaN whiskers can be grown from a GaN source in a reaction vessel subjected to a temperature gradient at nitrogen pressure. The GaN source can be formed in situ as part of an exchange reaction or can be preexisting GaN material. The GaN source is dissolved in a solvent and precipitates out of the solution as millimeter-scale single crystal filaments as a result of the applied temperature gradient. | 05-26-2011 |
Gregg Feigelson, Chester, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20090023930 | PROCESSES AND INTERMEDIATES FOR THE PREPARATION OF HETEROCYCLIC SULFONAMIDE COMPOUNDS - Methods for preparing compound of formula (I) are described, wherein R | 01-22-2009 |
| 20100324066 | CRYSTALLINE FORMS OF 4-[(2,4-DICHLORO-5-METHOXYPHENYL)AMINO]-6-METHOXY-7-[3-(4-METHYL-1-PIPERA- ZINYL)PROPOXY]-3-QUINOLINECARBONITRILE AND METHODS OF PREPARING THE SAME - This invention is directed to a crystalline 4-[(2,4-dichloro-5-methoxyphenyl)amino]-6-methoxy-7-[3-(4-methyl-1-piperazinyl)propoxy]-3-quinolinecarbonitrile monohydrate having an x-ray diffraction pattern wherein 2θ angles (°) of significant peaks are at about: 9.19, 11.48, 14.32, 19.16, 19.45, 20.46, 21.29, 22.33, 23.96, 24.95, 25.29, 25.84, 26.55, 27.61, and 29.51, and a transition temperature of about 109° C. to about 115° C. | 12-23-2010 |