| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 2 | |
| #2 | Switzerland | 2 | |
| #3 | Italy | 2 | |
| #4 | Australia | 1 | |
| #5 | Belgium | 1 | |
| #6 | Canada | 1 | |
| #7 | Germany | 1 | |
| #8 | Denmark | 1 | |
| #9 | Spain | 1 | |
| #10 | Finland | 1 | |
| #11 | France | 1 | |
| #12 | United Kingdom | 1 | |
| #13 | Greece | 1 | |
| #14 | Hong Kong | 1 | |
| #15 | Netherlands | 1 | |
| #16 | Norway | 1 | |
| #17 | Sweden | 1 | |
| #18 | Singapore | 1 | |
| #19 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Analysing materials | |
| #2 | Measuring light |
| # | Name | Total Patents |
|---|---|---|
| #1 | Weston Allen | 13 |
| #2 | Solaroli Lino | 2 |
| #3 | Cerruti Gianfranco | 2 |
| #4 | Allen Weston | 1 |
| #5 | Weston A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH675771A5 | Portable spectrophotometer for analysing metallic paint | |
| GR890100166A | A portable spectrophotometer |