Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8991487 | Pull through centralizer | William Iain Elder Levie, Miles Norman Sweep | 2015-03-31 |
| 8960278 | Pull through centralizer | William Iain Elder Levie, Miles Norman Sweep | 2015-02-24 |