| A hybrid organic-inorganic composite film | January 21, 2019 | 12/31/2001 |
| A process for preparing immobilzed nano-sized metal particles | January 21, 2019 | 12/31/2001 |
| An improved process for the production of cyclopentane from light petroleum fraction | January 21, 2019 | 03/30/2001 |
| A process for the preparation of silicon nitride powder | January 21, 2019 | 02/28/2002 |
| A process for the preparation of hydrogen peroxide | January 21, 2019 | 12/31/2001 |
| A synergistic compositon for the preparation of silicon nitride powder | January 21, 2019 | 02/28/2002 |
| A process for preparation of a lactone form a cyclic ketone | January 21, 2019 | 12/31/2001 |
| A process for the preparation of phytomedicinal composition to increase secrease secretion of mammary glands for lactating mothers | January 21, 2019 | 01/31/2001 |
| A transposed process for making wet processed leather | January 21, 2019 | 02/20/2004 |
| A device for feeding pulverised coal to a furnace | January 21, 2019 | 03/28/2003 |