Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7675816 | Enhanced noise cancellation in VSP type measurements | Holger Mathiszik, Graham A. Gaston | 2010-03-09 |
| 7646754 | Mobile telephone network | David Laurenson, Yuefeng Zhou | 2010-01-12 |
| 4731967 | Chimney construction | — | 1988-03-22 |
| 4719901 | Flue pipe installation through flammable walls | — | 1988-01-19 |