| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Brazil | 2 | |
| #3 | Canada | 2 | |
| #4 | China | 2 | |
| #5 | Republic of Korea | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | Australia | 1 | |
| #8 | Singapore | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Surface technology and coating | |
| #3 | Machines | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Optical systems | |
| #2 | Spectacles | |
| #3 | Books | |
| #4 | Layered products | |
| #5 | Producing goods from plastic |
| # | Name | Total Patents |
|---|---|---|
| #1 | Valentine Keenan | 13 |
| #2 | Keenan Valentine | 2 |
| #3 | Mack Timothy | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2020176444A1 | Optical device with transmission inhibition plateau in blue spectral range | |
| KR20200095523A | Optical device for enhancing human color vision with improved appearance | |
| KR20190050799A | Optical devices for improving human color vision | |
| CN110234499A | For enhancing the Optical devices of human color vision |