| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Belgium | 4 | |
| #2 | Spain | 3 | |
| #3 | Switzerland | 2 | |
| #4 | France | 2 | |
| #5 | United States | 2 | |
| #6 | United Kingdom | 1 | |
| #7 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Environmental technology | |
| #4 | Engines, pumps and turbines | |
| #5 | Packaging and shipping | |
| #6 | Thermal processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Launay Pierre | 7 |
| #2 | Phat Tran Dinh | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3605774A | Maritime apparatus utilizable as a hydrocarbon reservoir | |
| ES381965A2 | Method of advancing a prestressed concrete bridging structure | |
| ES381903A1 | Caisson for a marine structure | |
| ES368365A1 | Method of advancing bridging structures | |
| US3447784A | Apparatus for prestressing concrete |