Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4438219 | Alumina catalyst stable at high temperatures | John M. Crone, Jr. | 1984-03-20 |
| 4289810 | In-situ cavity coating method | King D. Eng, Kung-You Lee, Matthew A. McMahon | 1981-09-15 |
| 4255173 | Lead filter for internal combustion engine exhaust gases | Edward A. Mayer | 1981-03-10 |