| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | Canada | 1 | |
| #3 | China | 1 | |
| #4 | Hong Kong | 1 | |
| #5 | Republic of Korea | 1 | |
| #6 | Singapore | 1 | |
| #7 | United States | 1 | |
| #8 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Audio-visual technology | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Optical systems | |
| #2 | Television | |
| #3 | Measuring distances | |
| #4 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mercer Graham Peter Francis | 4 |
| #2 | Freeman Robin John | 1 |
| #3 | Graham Peter Francis Mercer | 1 |
| #4 | Mercer Graham Peter Francis Gpf | 1 |
| #5 | Freeman R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8720276D0 | Precision slides & position encoders | |
| GB2059095A | Microscopes | |
| GB1586701A | Disc with line transmitters | |
| ZA7205372B | Improvements in high magnification optical apparatus | |
| US3481673A | Optical comparison systems |