Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6908656 | Orthogonally ambiguous carpet tile | David D. Oakey | 2005-06-21 |
| 6841216 | Rotationally determinate, positionally ambiguous striped carpet tiles | David D. Oakey | 2005-01-11 |