| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 5 | |
| #2 | Austria | 3 | |
| #3 | Canada | 2 | |
| #4 | Denmark | 1 | |
| #5 | United Kingdom | 1 |
| # | Technology | |
|---|---|---|
| #1 | Shaping of plastics | |
| #2 | Spectacles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kopp Peter | 9 |
| #2 | Peter Kopp | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB113932A | Improvements in Marksman's Spectacles. | |
| CA345777A | Moulded plate, rod, last and tube production | |
| CA341428A | Resin article production |