| A synergistic composition and process for the production of transparent frit | January 21, 2019 | 04/28/2003 |
| A synergistic composition for the preparation of dense samarium stablised alpha-siaion | January 21, 2019 | 03/14/2002 |
| A novel metallic paste composition useful as an interlayer in diffusion soldering | January 21, 2019 | 03/27/2002 |
| A device for biological treatment of waste water and a process therefor | January 21, 2019 | 09/04/2003 |
| Method for synthesis of geikelite - a mantle oxide | January 21, 2019 | 09/29/2004 |
| A device for feeding pulverised coal to a furnace | January 21, 2019 | 03/28/2003 |
| Method for preparing conducting polyaniline | January 21, 2019 | 12/31/2003 |
| A novel method for underground extraction of coal from contiguous seams / sections | January 21, 2019 | 08/12/2000 |
| A process for the preparation of a nanosized noble metal catalyst useful for the selective preparation of aliphatic diol | January 21, 2019 | 11/29/2000 |
| An process for the preparation of high grade synthetic rutile from ilmenites with pig iron as a by-product | January 21, 2019 | 03/28/2000 |