Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672021 | Fibrous nib for use in a capillary feed marker | Lee A. Carlson, Lewis H. Johnson, Craig L. Donaldson | 1997-09-30 |
| 5629363 | Aqueous-based, shear-thinning, erasable ink and roller-ball pen containing same | Takao Machida, Mark Smith | 1997-05-13 |