| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 32 | |
| #2 | Ireland | 6 | |
| #3 | Germany | 5 | |
| #4 | Netherlands | 5 | |
| #5 | France | 4 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Thermal processes | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements | |
| #5 | Control | |
| #6 | Chemical engineering | |
| #7 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hughes John Benjamin Rhodes | 7 |
| #2 | Rhodes Hughes John Benjamin | 3 |
| #3 | Hughes Benjamin Donald | 3 |
| #4 | Frawley Patrick | 2 |
| #5 | Smyth Michael P | 1 |
| #6 | Smyth Michael Philip | 1 |
| #7 | Joyner John Frederick | 1 |
| #8 | Hughes Loenard John | 1 |
| #9 | Wright Brian William | 1 |
| #10 | Benjamin Donald Hughes | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8416852D0 | Ventilation fan | |
| GB8410559D0 | Louvred ventilators | |
| GB8333532D0 | Improvements in or relating to apparatus for controlling a ventilation fan | |
| GB8321425D0 | Louvre assembly | |
| GB8320816D0 | Ventilation arrangement | |
| GB8305475D0 | Ventilators | |
| GB2126708A | Louvres for ventilation openings | |
| GB2126707A | Louvred ventilators | |
| GB2051343A | Louvred ventilators | |
| GB1604919A | Ventilator | |
| GB1504909A | Louvte blades | |
| GB1518929A | Ventilator | |
| GB1519342A | Ventilator | |
| NL7506971A | Astragal window-frame ventilator - has cowl or plate accommodating separate component in which glass pane fits | |
| GB1486461A | Ventilator incorporating centrifugal fan | |
| GB1518928A | Ventilators for windows | |
| IE39019L | Ventilators for windows | |
| GB1422867A | Ventilators for windows | |
| GB1379248A | Air pressure relief means | |
| GB1363094A | Louvred walls |