| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | Israel | 2 | |
| #4 | India | 2 | |
| #5 | Australia | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Italy | 1 | |
| #8 | Netherlands | 1 | |
| #9 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Thermal processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mcelwain John Allen | 2 |
| #2 | Mcelwain John A | 2 |
| #3 | Mcelwain J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IL122827D0 | A process for reducing the volume of dairy sludge | |
| IL117040D0 | A process for the treatment of waste water | |
| GB2053454A | Environment conditioning system | |
| GB2026679A | Solar energy collector and system |