| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 3 | |
| #2 | Canada | 2 | |
| #3 | China | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Taiwan | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Water-closets with flushing devices | |
| #2 | Unspecified technologies | |
| #3 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Khoo Kah Hin | 11 |
| #2 | Khoo Kah H | 2 |
| Publication | Filing date | Title |
|---|---|---|
| AUPR689801A0 | Control device for dual flushing mechanism of a cistern | |
| AU7499400A | Dual volume discharge outlet valve apparatus | |
| AU7499300A | Liquid flow control valve | |
| EP1232356A1 | Liquid flow control valve | |
| CA2384896A1 | Dual volume discharge outlet valve apparatus |