| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Sweden | 4 | |
| #3 | EPO (European Patent Office) | 1 | |
| #4 | United Kingdom | 1 | |
| #5 | Norway | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Unspecified technologies | |
| #3 | Pistons and sealings | |
| #4 | Venting or aerating devices | |
| #5 | Pipes | |
| #6 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Berg Lennart Gustaf | 8 |
| #2 | Berg Lennart Gustav | 2 |
| #3 | Gustaf Berg Lennart | 2 |
| Publication | Filing date | Title |
|---|---|---|
| EP0024068A1 | Quick coupling device for pressurized fluid conduits. | |
| DE2927588A1 | Sealing ring with rigid core - is covered by casing of flexible material in two parts which slide onto core | |
| US4064906A | Valve for water pipes | |
| DE2361962A1 | Two position shut off piston valve - has cylindrical piston enclosed with rubber or plastic in flat surrounding tube | |
| GB1124899A | A sealing device between a movable surface and a stationary surface |