| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | France | 2 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | China | 1 | |
| #6 | Germany | 1 | |
| #7 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Walking sticks | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yung Kwong Yuen | 6 |
| #2 | Kwong-Yuen Yumg | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2007289619A1 | One-handed operating mechanism for opening and closing umbrella | |
| WO2006042451A1 | A switch used for an umbrella capable of operation by one hand | |
| WO9635347A1 | A stick umbrella which is opened and closed in one hand | |
| GB8315149D0 | Umbrella | |
| US3796226A | Umbrella, sunshade or the like | |
| GB1351305A | Umbrellas | |
| GB1351195A | Umbrellas and sunshades | |
| GB1066742A | Improvements in and relating to umbrellas, sunshades and the like |