| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Italy | 6 | |
| #2 | Brazil | 1 | |
| #3 | Switzerland | 1 | |
| #4 | Denmark | 1 | |
| #5 | France | 1 | |
| #6 | Mexico | 1 | |
| #7 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Colla Romano | 6 |
| #2 | Nakanishi M W | 1 |
| #3 | Colla S | 1 |
| #4 | Colla Sergio | 1 |
| Publication | Filing date | Title |
|---|---|---|
| BR8000490A | Method for consolidating lands, by injection of liquids in the underground, beyond meiso relating to execution | |
| CH613736A5 | Method for consolidating land by the creation of strong masses in the shape of columns or bulkheads and equipment for implementation thereof |