| A process for preparation of cellulose fractions | January 21, 2019 | 01/31/2001 |
| An improved process for the production of 3,4,5,6,7,8-hexahydro-1-(aryl methyl) isoquinolines | January 21, 2019 | 11/01/2000 |
| An improved process for decolourisation of agro-industry effluents to produce colourless effluent | January 21, 2019 | 11/18/1999 |
| A process for the preparation of ester derivatives of acyclic monoterpenoid | January 21, 2019 | 01/19/2001 |
| A bioactive hexane fractoin cim 109 from the plant vetivera zizanioides useful for inhibiting the growth of drug resistant bacterial pathogen | January 21, 2019 | 08/05/2003 |
| Device for supplying disintegrated coal to furnace | January 21, 2019 | 12/31/2003 |
| A process for the biotransformation of cyanohydrocarbons to corresponding amides | January 21, 2019 | 01/18/2000 |
| A composition for the manufacture of flyash based rigid roof supports | January 21, 2019 | 07/31/2002 |
| A process for making rare earth doped optical fibre | January 21, 2019 | 03/31/2003 |
| Process for preparing improved silicon carbide powder | January 21, 2019 | 10/27/2004 |