Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |