| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Singapore | 4 | |
| #2 | United Kingdom | 3 | |
| #3 | Indonesia | 3 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | United States | 2 | |
| #6 | Australia | 1 | |
| #7 | Hong Kong | 1 | |
| #8 | Japan | 1 | |
| #9 | Malaysia | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations | |
| #2 | Hydraulic engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sandanasamy Richard Douglas | 15 |
| #2 | Siu Joaquim Pak-Man | 3 |
| #3 | Sandanasamy Richard D | 1 |
| #4 | Sandanasamty Richard Douglas | 1 |
| #5 | Siu Joaquim P | 1 |
| #6 | Douglas Sandanasamy Richard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| SG145576A1 | A bund wall building system and associated method | |
| SG75134A1 | A vertical drain stitcher | |
| SG67394A1 | A mandrel shoe | |
| SG76511A1 | A vertical drain | |
| GB9410734D0 | An interlocking joint | |
| GB9311320D0 | An interlocking joint |