| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 4 | |
| #4 | Hong Kong | 3 | |
| #5 | China | 2 |
| # | Industry | |
|---|---|---|
| #1 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lai Yuk Shing | 18 |
| Publication | Filing date | Title |
|---|---|---|
| US2015124341A1 | Macro conversion lens | |
| CN104335115A | A multi-directional pad for an underwater camera housing | |
| EP2807521A1 | Underwater camera housings | |
| WO2011157998A1 | Highly tactile shutter release | |
| EP2435864A1 | Dioptric adjustment device for underwater viewfinder | |
| EP2366128A1 | Method and apparatus for coupling a lens port to a housing | |
| US2010232780A1 | Positioning device for a reference surface |