Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5204155 | Resilient foam-backed carpet and method of preparation | Johannes A. H. Claessen | 1993-04-20 |
| 4942074 | Carpet tile | David S. Queen, John Smith | 1990-07-17 |
| 4737221 | Carpet tile production method | David S. Queen, John Smith | 1988-04-12 |
| 4582554 | Carpet tile production method | David S. Queen, John Smith | 1986-04-15 |