Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7520924 | Apparatus for collecting particles | David James Squirrell, Nigel Patrick Pomeroy, Martin John Berry | 2009-04-21 |
| 6851459 | Air samplers | David James Squirrell, Hilary Bird, Martin John Berry | 2005-02-08 |