| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | United States | 5 | |
| #3 | United Kingdom | 2 | |
| #4 | Japan | 1 | |
| #5 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Thermal processes | |
| #4 | Materials and metallurgy | |
| #5 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Unspecified technologies | |
| #3 | Air-conditioning | |
| #4 | Cleaning | |
| #5 | Non-metallic elements | |
| #6 | Paper recycling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Smith James W | 3 |
| #2 | Bender Manfred | 2 |
| #3 | Powlesland John W | 2 |
| #4 | Davis John A | 2 |
| #5 | Powlesland William H | 2 |
| #6 | Harper P H I | 1 |
| #7 | Knight Cyril H | 1 |
| #8 | Shiriru Hiyuusun Naito | 1 |
| #9 | Smith J W | 1 |
| #10 | Barton Robert A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8301968D0 | Removal of hydrogen sulphide from gaseous streams | |
| GB2015976A | Hydrogen sulphide removal process | |
| US4134331A | Canopy hoods | |
| CA1075959A | Canopy hoods | |
| US3994210A | Jet fume control systems | |
| CA1015594A | Jet fume control systems | |
| US4027002A | Hydrogen sulphide removal process | |
| CA1000105A | Controlled fluid flow systems | |
| US3768394A | Device for producing dynamic flow in fluids to form curtains of the fluid |