Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5876533 | Method of sealing a manhole riser and a catch basin and apparatus for same | Jeffrey W. House, William P. House | 1999-03-02 |
| 5800648 | Exterior lining for catch basin or manhole | Jeffrey W. House | 1998-09-01 |
| 5613806 | Sealing system for sewer and water applications | Jeffrey W. House | 1997-03-25 |
| 5531485 | Method for sealing a pipe juncture | Jeffrey W. House, William P. House | 1996-07-02 |
| 5511897 | Method of sealing a manhole riser and a catch basin and apparatus for same | William P. House | 1996-04-30 |