Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6345422 | Preformed combination vault and casket assembly with stackable components | — | 2002-02-12 |
| 6250025 | Assembleable columbarium tower | — | 2001-06-26 |
| 5960524 | Burial container assembly and method for constructing the same | James Walthall | 1999-10-05 |
| 4531266 | Burial vault structure | David Darby | 1985-07-30 |
| D265251 | Swimming pool ladder | David Darby | 1982-06-29 |
| 4314390 | Composite burial vault and method for making same | David Darby | 1982-02-09 |
| 4261083 | Composite burial vault | David Darby | 1981-04-14 |