Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5348726 | Process for producing manganese dioxide | Lifun Lin, William L. Bowden | 1994-09-20 |
| 5277890 | Process for producing manganese dioxide | Lifun Lin, William L. Bowden | 1994-01-11 |