| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 7 | |
| #2 | Germany | 2 | |
| #3 | Austria | 1 | |
| #4 | Switzerland | 1 | |
| #5 | Denmark | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Finland | 1 | |
| #8 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Basic materials chemistry | |
| #4 | Materials and metallurgy | |
| #5 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Finishing work on buildings | |
| #3 | Refining | |
| #4 | General building constructions | |
| #5 | Building materials | |
| #6 | Climate change mitigation in wastewater treatment | |
| #7 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ottenholm Tor Axel Ingvar | 9 |
| #2 | Ingvar Ottenholm Tor Axel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0149011A1 | A method for producing oil from animal feet and/or hooves | |
| SE7908250L | Process for extracting fat from slaughterhouse bones by the application of high-frequency electrical energy | |
| ATA830778A | Method for producing a component and component | |
| DE1471355A1 | Process for the production of construction elements from essentially bark and cement, as well as construction element produced according to this process |