| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Canada | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | Mexico | 2 | |
| #5 | Japan | 1 | |
| #6 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Macromolecular chemistry and polymers |
| # | Technology | |
|---|---|---|
| #1 | Special macromolecular compounds | |
| #2 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ratkowski Donald J | 14 |
| #2 | Burke William J | 4 |
| #3 | Lue Ping-Chang | 2 |
| #4 | Donarudo Zee Ratokousuki | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4769431A | Polyacryloxyalkylsilanol lens composition, articles and method of manufacture | |
| US4661573A | Lens composition articles and method of manufacture | |
| CA1261998A | Lens composition, article and method of manufacture | |
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