| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 9 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | United States | 3 | |
| #4 | Finland | 2 | |
| #5 | Norway | 2 | |
| #6 | Australia | 1 | |
| #7 | Canada | 1 | |
| #8 | Germany | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Thermal processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ingestrom Curt Holger | 8 |
| #2 | Ingestroem Curt Holger | 6 |
| #3 | Ingestroem Curt H | 3 |
| #4 | Ingestrom C H | 1 |
| #5 | Gustavsson Stig O S | 1 |
| #6 | Bokvist Kjell Arne | 1 |
| #7 | Gustavsson S E S | 1 |
| #8 | Gustavsson Stig Oskar Soeren | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1294260C | Method of controlling the conditions in a dwelling-- house | |
| EP0196303A1 | A method of controlling the conditions in a dwelling-house. | |
| EP0054549A1 | Solar heating system in a building. | |
| AU6920881A | ** | |
| EP0034580A1 | Method and apparatus for manufacturing building blocks containing holes | |
| US4130973A | Building block | |
| DE2740269A1 | Lightweight dimensionally stable building block - mfd. of blown-clay granules with cement binder and has rows of blind holes filled with heat-insulating urea!-formaldehyde! resin foam | |
| FI771313A | Byggblock |