Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6804862 | Hinge system | — | 2004-10-19 |
| 6805359 | Expansion ring assembly | Ronald W. Neuhaus, James W. Skinner | 2004-10-19 |
| 6676136 | Flexible waterstop ring | James W. Skinner | 2004-01-13 |
| D484781 | Ribbed dowel | — | 2004-01-06 |