| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 3 | |
| #2 | Australia | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Mexico | 2 | |
| #5 | Taiwan | 2 | |
| #6 | Canada | 1 | |
| #7 | Egypt | 1 | |
| #8 | Israel | 1 | |
| #9 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Analysing materials | |
| #2 | Measuring volume |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sargent John S | 13 |
| #2 | Sargent Frank T | 12 |
| Publication | Filing date | Title |
|---|---|---|
| AU1804599A | Volume charge density measuring system | |
| WO9857156A1 | Capacitive measuring system |