| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Belgium | 1 | |
| #3 | Canada | 1 | |
| #4 | German Democratic Republic | 1 | |
| #5 | Germany | 1 | |
| #6 | Denmark | 1 | |
| #7 | Finland | 1 | |
| #8 | France | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | Hungary | 1 | |
| #11 | Ireland | 1 | |
| #12 | Italy | 1 | |
| #13 | Netherlands | 1 | |
| #14 | Norway | 1 | |
| #15 | Sweden | 1 | |
| #16 | United States | 1 | |
| #17 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume |
| # | Name | Total Patents |
|---|---|---|
| #1 | Corney Andrew Cedric | 9 |
| #2 | Sealey Graham Peter | 8 |
| #3 | Corney Andrew C | 4 |
| #4 | Sealey Graham P | 3 |
| #5 | Hartstone J L | 1 |
| #6 | Corney A C | 1 |
| #7 | Zealey Graham Peter | 1 |
| #8 | Sealey G P | 1 |
| #9 | Sealey Grahem P | 1 |