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Ashish Kumar
Ashish Kumar Gupta, Up IN
| Patent application number | Description | Published |
|---|---|---|
| 20090256481 | STAND ALONE LAMP FILAMENT PREHEAT CIRCUIT FOR BALLAST - A lamp filament preheating circuit using modified flyback topology which gives pulsating AC in the secondary of the flyback transformer. The circuit may be controller based or implemented by a monoshot and astable multivibrator. A self-oscillation, parallel resonant current fed half bridge inverter circuit may include an arc sensing circuit. | 10-15-2009 |
Ashish Kumar Rehni, Patiala IN
| Patent application number | Description | Published |
|---|---|---|
| 20110097395 | Oral Pharmaceutical Compositions of Buprenorphine and Method of Use - The present invention is directed to oral pharmaceutical compositions of buprenorphine and it pharmaceutically acceptable salts and the use thereof. | 04-28-2011 |
Ashish Kumar Singh, Bihar IN
| Patent application number | Description | Published |
|---|---|---|
| 20100029933 | PURE FORM OF RAPAMYCIN AND A PROCESS FOR RECOVERY AND PURIFICATION THEREOF - The present invention relates to a pure form of rapamycin with a total impurity content less than 1.2%; a process for recovery and purification of rapamycin comprising steps of (a) treating the fermentation broth, extracts or solutions containing rapamycin with water immiscible solvent and concentration; (b) addition of a water miscible solvent to effect separation of impurities present; (c) optionally, binding of the solvent containing the product from step (b) to an inert solid, washing the solid with a base and acid, followed by elution; (d) subjecting the elute from step (c) or the solvent containing the product from step (b) to silica gel chromatography; (e) crystallization of the product obtained from step (d); (f) subjecting a solution of the product from step (e) to hydrophobic interaction or reversed phase chromatography; and (g) re-crystallization to afford rapamycin in substantially pure form. | 02-04-2010 |
Ashish Kumar Tawari, Bemetara IN
| Patent application number | Description | Published |
|---|---|---|
| 20120029923 | SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR CODING OF HARMONIC SIGNALS - A scheme for coding a set of transform coefficients that represent an audio-frequency range of a signal uses a harmonic model to parameterize a relationship between the locations of regions of significant energy in the frequency domain. | 02-02-2012 |