Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5411587 | Paper coating kaolin pigments their preparation and use | Mitchell J. Willis, Fred M. Allen, Jordan Keith Lampert | 1995-05-02 | $39,171,000 |
| 5169443 | Paper coating kaolin pigments there preparation and use | Mitchell J. Willis | 1992-12-08 | $7,141,000 |