| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 4 | |
| #3 | Norway | 3 | |
| #4 | United Kingdom | 2 | |
| #5 | Australia | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Germany | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | France | 1 | |
| #10 | Israel | 1 | |
| #11 | Italy | 1 | |
| #12 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Computer technology | |
| #5 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Heat-exchange device details | |
| #2 | Heat-exchanger without contact | |
| #3 | Making metal sheets | |
| #4 | Unspecified technologies | |
| #5 | Static stores | |
| #6 | Metal tempering | |
| #7 | Metal-working | |
| #8 | Changing non-ferrous metals |
| # | Name | Total Patents |
|---|---|---|
| #1 | Carnavos Theodore C | 7 |
| #2 | French Fred W | 4 |
| #3 | French Fred Wellington | 3 |
| #4 | French F | 2 |
| #5 | French Fred W Ii | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO8402572A1 | Coaxial finned tube heat exchanger | |
| GB1390782A | Heat-exchange tubing | |
| CA940118A | Heat-exchange tubing and method of making it | |
| GB1390781A | Heat-exchange tubing | |
| US3776018A | Tubing with inner baffle fins and method of producing it | |
| DE2209325A1 | HEAT EXCHANGE TUBE WITH INTERNAL RIBS AND METHOD OF ITS MANUFACTURING | |
| US3662582A | Heat-exchange tubing and method of making it | |
| US3622403A | Production of metal tubing with rough inner surfaces | |
| CA880021A | Method of reforming tubular metal blanks into inner-fin tubes |