Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7134808 | Drain sealing | David Albone | 2006-11-14 |
| 6632046 | Mold liner for facilitating manufacture of reinforced drainage blocks | David Robertson | 2003-10-14 |
| 5687910 | Sprinkler riser connecting apparatus | — | 1997-11-18 |
| 5577706 | Water faucet with automatic shut-off mechanism for water conservation | — | 1996-11-26 |
| 5392066 | In-store advertising system | Daniel J. Fisher | 1995-02-21 |
| 4244698 | Method for drying magnesium sulfate | Herbert A. Johnson | 1981-01-13 |
| D254228 | Article of flatware | — | 1980-02-19 |