| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 4 | |
| #2 | Canada | 3 | |
| #3 | China | 3 | |
| #4 | United Kingdom | 3 | |
| #5 | United States | 2 | |
| #6 | Australia | 1 | |
| #7 | Japan | 1 | |
| #8 | Mexico | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology | |
| #3 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Griffiths George | 15 |
| #2 | Gay Geoffrey Norman Walter | 12 |
| #3 | George Griffiths | 2 |
| #4 | Walter Gay Geoffrey Norman | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB0408910D0 | Device for air cleaning | |
| GB0302490D0 | An insulated kettle | |
| CA2606544A1 | Air cleaning device with uniform electric field electret properties |