| 6729795 |
Modular drain and drain system |
James G. Wilson, Christopher B. Presler |
2004-05-04 |
| 6655098 |
Stair module support and leveling system |
William A. Dillen, II, Allen L. Kinner, Matthew Cramer, James G. Wilson |
2003-12-02 |
| 6612780 |
Modular trench drain system |
James G. Wilson, Allen L. Kinner, Christopher B. Presler, Matthew Schlager |
2003-09-02 |
| 5560178 |
Method for covering openings contiguous to a swimming pool |
Paul D. Spies |
1996-10-01 |
| 5557904 |
Thermoformable plastic framin/connecting strip |
— |
1996-09-24 |
| 5417016 |
Cover for openings contiguous to a swimming pool |
Paul D. Spies |
1995-05-23 |
| 5107551 |
Multiple accessory swimming pool coping |
Donald H. Weir |
1992-04-28 |
| 4980934 |
Retrofittable receptor device |
Stephen F. Gray, Sr. |
1991-01-01 |
| 4873802 |
Plastic module rigidizing system |
— |
1989-10-17 |
| 4829732 |
Anchor socket jig assembly |
Scott E. Crandall |
1989-05-16 |
| 4735395 |
Interfacial separator for concrete structures |
— |
1988-04-05 |
| 4589237 |
Stair module support and leveling construction |
— |
1986-05-20 |
| 4548009 |
Concrete expansion joint |
— |
1985-10-22 |
| 4490067 |
Modular drain system |
— |
1984-12-25 |
| 4457119 |
Swimming pool coping |
— |
1984-07-03 |
| 4429425 |
Swimming pool cover or dome bead construction |
Donald H. Weir |
1984-02-07 |