Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6739800 | Self-flushing gutter pipe | — | 2004-05-25 |
| 6467995 | Self-flushing pipe | Heather Marie Barnes | 2002-10-22 |
| 6202700 | Self-flushing pipe | — | 2001-03-20 |
| 5765323 | Drainage pipe | — | 1998-06-16 |
| 5660008 | Triangular shaped pipe for use in crawl spaces | — | 1997-08-26 |
| 5035095 | Basement wall structure to prevent water leakage | — | 1991-07-30 |
| 4930272 | Drain system | — | 1990-06-05 |
| 4612742 | Wall and foundation drainage construction | — | 1986-09-23 |