Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8015970 | Respirator, welding helmet, or face shield that has low surface energy hard-coat lens | Thomas P. Klun, Zai-Ming Qiu, Gerald R. Hofmann, Andrew S. Viner, Oscar S. Benz +3 more | 2011-09-13 |