Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5116537 | Low temperature expandable vermiculite and intumescent sheet material containing same | Julie Yang | 1992-05-26 |
| 5079280 | Low temperature expandable vermiculite and intumescent sheet material containing same | Julie Yang | 1992-01-07 |