Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7959132 | Apparatus for emitting a chemical agent | Martin Butler, Richard Read | 2011-06-14 |
| D547431 | Cartridge and refill of air treatment device | Martin Butler, Richard Read | 2007-07-24 |
| D525693 | Air freshener refill | Martin Butler, Richard Read | 2006-07-25 |
| D508284 | Air freshener device | Martin Butler, Richard Read | 2005-08-09 |