Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11002010 | Methods for making high sound transmission class gypsum boards and gypsum boards made by the method | Suman Sinha Ray, Mark Hemphill, Yijun Sang | 2021-05-11 |
| 10604929 | Fire resistant gypsum board comprising expandable graphite and related methods and slurries | Qinghua Li, Naveen Punati, Weixin D. Song | 2020-03-31 |
| 5910004 | Vibration enhancer for fishing rod | — | 1999-06-08 |