| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 3 | |
| #2 | Brazil | 2 | |
| #3 | Canada | 2 | |
| #4 | Spain | 2 | |
| #5 | France | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | Italy | 2 | |
| #8 | Netherlands | 2 | |
| #9 | Sweden | 2 | |
| #10 | United States | 2 | |
| #11 | Argentina | 1 | |
| #12 | Belgium | 1 | |
| #13 | Germany | 1 | |
| #14 | Portugal | 1 | |
| #15 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Internal-combustion piston engines | |
| #2 | Cooling of machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Evans John W | 17 |
| #2 | Evans J W | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US4550694A | Process and apparatus for cooling internal combustion engines | |
| NL8320385A | BOILING LIQUID COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINES. |