| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | EPO (European Patent Office) | 5 | |
| #3 | Canada | 2 | |
| #4 | Germany | 1 | |
| #5 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Machines | |
| #3 | Medical technology | |
| #4 | Civil engineering | |
| #5 | Measurement | |
| #6 | Macromolecular chemistry and polymers |
| # | Name | Total Patents |
|---|---|---|
| #1 | Anger Wilhelm | 7 |
| #2 | Baum Joachim | 4 |
| #3 | Steinhauer Eric | 4 |
| #4 | Czech Gunther | 3 |
| #5 | Volk Stephan | 2 |
| #6 | Wiedmann Helmut | 2 |
| #7 | Lange Karl-Heinz | 2 |
| #8 | Vidmann Khelmut | 1 |
| #9 | Leuzinger Christoph | 1 |
| #10 | Lange Karl Heinz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0395089A1 | Ear probe provided with a parallel guiding device | |
| DE3726189A1 | Spectacle frames and parts thereof | |
| EP0361547A2 | Rimless spectacles for correction purposes |