Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4466218 | Fixed abrasive polishing media | John C. S. Shen | 1984-08-21 |
| 4393628 | Fixed abrasive polishing method and apparatus | John C. S. Shen | 1983-07-19 |
JO
John C. Ottman
Overall (All Time): #2,359,280 of 4,157,543Top 60%
2
Patents All Time