Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9309684 | Easy dome cover | Janie Marie Richards | 2016-04-12 |
| 4903446 | Prestressed plastic foam structural member | Marilyn Richards | 1990-02-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9309684 | Easy dome cover | Janie Marie Richards | 2016-04-12 |
| 4903446 | Prestressed plastic foam structural member | Marilyn Richards | 1990-02-27 |