| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | United Kingdom | 3 | |
| #3 | Italy | 3 | |
| #4 | Canada | 2 | |
| #5 | Switzerland | 2 | |
| #6 | Japan | 2 | |
| #7 | Australia | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | Spain | 1 | |
| #10 | France | 1 | |
| #11 | Sweden | 1 | |
| #12 | United States | 1 | |
| #13 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Engines, pumps and turbines | |
| #3 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Pumps | |
| #3 | Siphons | |
| #4 | Transport or storage devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grandori Carlo | 9 |
| #2 | Grandori C | 2 |
| #3 | Karuro Gurandori | 2 |
| #4 | Carlo Grandori | 2 |
| Publication | Filing date | Title |
|---|---|---|
| ITRM930819D0 | Improved telescopic double shield cutter | |
| US5174683A | Telescopic double shield boring machine | |
| GB1526702A | Tunnel boring machines | |
| GB699419A | Improvements in pumps for pumping or conveying concrete | |
| GB680293A | Method and device for conveying concrete or mortar to work |