| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Japan | 3 | |
| #3 | Austria | 2 | |
| #4 | Canada | 2 | |
| #5 | Switzerland | 2 | |
| #6 | France | 2 | |
| #7 | United Kingdom | 2 | |
| #8 | Sweden | 2 | |
| #9 | Brazil | 1 | |
| #10 | Germany | 1 | |
| #11 | Italy | 1 | |
| #12 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Materials and metallurgy | |
| #3 | Measurement | |
| #4 | Environmental technology | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Chemical or physical processes | |
| #3 | Combustion residues removal | |
| #4 | Analysing materials | |
| #5 | Unspecified technologies | |
| #6 | Alkali metal compounds | |
| #7 | Rare-earth metal compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brady Jack D | 5 |
| #2 | Graves Kenny M | 4 |
| #3 | Himes Richard C | 4 |
| #4 | Craig Bruce G | 4 |
| #5 | Craig B G | 2 |
| #6 | Jiyatsuku Deii Bureidei | 2 |
| #7 | Himes R C | 2 |
| #8 | Himes Richard Carl | 1 |
| #9 | Gulick Walter Field | 1 |
| #10 | Tamasu Pii Rasu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4379130A | Process for regenerating scrubbing solutions | |
| US4334897A | Gas scrubbing apparatus | |
| JPS5289377A | Device for collecting samples | |
| GB1525183A | Air filtration apparatus and method of operation thereof | |
| US4073631A | Stationary drum filtration device and method | |
| US4038057A | Closed circuit sampler | |
| CH597895A5 | Filtering (sub)micron solid and liq. particles from fast gas streams |