| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 8 | |
| #2 | Switzerland | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Packaging and shipping | |
| #3 | Thermal processes | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume | |
| #2 | Measuring distances | |
| #3 | Steam generation | |
| #4 | Handling thin material | |
| #5 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rene Pancaldi | 2 |
| #2 | Pancaldi Rene | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1456493A | Liquid-level indicator apparatus | |
| GB1088967A | A multicolour level indicator |