Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10683457 | Solid composite intumescent structures for fire protection | Hui Zhu, David E. Livingstone | 2020-06-16 |
| 10138421 | Hot melt intumescent materials for fire protection | Hui Zhu | 2018-11-27 |
| 8444790 | Multi-layer intumescent fire protection barrier with adhesive surface | — | 2013-05-21 |
| 7290960 | Sprayable mining liner | Ashok Sengupta | 2007-11-06 |
| 7011865 | Sprayable mining liner | Ashok Sengupta | 2006-03-14 |
| 6664414 | Process for reducing residual isocyanate | Ashok Sengupta | 2003-12-16 |