| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | Denmark | 2 | |
| #5 | Austria | 1 | |
| #6 | Finland | 1 | |
| #7 | France | 1 | |
| #8 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Electrical machinery and energy | |
| #3 | Environmental technology | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Shaping of plastics | |
| #2 | Special electric heating or lighting | |
| #3 | Unspecified technologies | |
| #4 | Domestic heating systems | |
| #5 | Climate change mitigation in buildings | |
| #6 | Fillers | |
| #7 | Resistors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bergersen Hans Amund | 6 |
| #2 | Bjerkeseth Erik | 2 |
| #3 | Lund Olav G | 1 |
| #4 | Gerhard Lund Olav | 1 |
| #5 | Erik Bjerkeseth | 1 |
| #6 | Lund Olav | 1 |
| #7 | Bergersen Hans A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4092626A | Continuous web consisting of resistance foil material between two insulating foil layers and method for the production of such webs | |
| US4025893A | Continuous web consisting of resistance foil material between two insulating foil layers and method for the production of such webs | |
| GB1448700A | Manufacture of electrical heating mats | |
| US3263307A | Method for making electrical heating mats and blanks therefor | |
| CA750610A | Method of manufacturing electric heating elements |