Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D757695 | Helmet-dust plug | Nan Jiang, James Phillip Purrington, Jr. | 2016-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D757695 | Helmet-dust plug | Nan Jiang, James Phillip Purrington, Jr. | 2016-05-31 |