| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | India | 2 | |
| #5 | United States | 2 | |
| #6 | China | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | Spain | 1 | |
| #9 | Hungary | 1 | |
| #10 | Malaysia | 1 | |
| #11 | Singapore | 1 | |
| #12 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machines | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Building materials | |
| #2 | Unspecified technologies | |
| #3 | Climate change mitigation in wastewater treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Walker Bryan James | 8 |
| #2 | Walker Bryan J | 5 |
| #3 | Bryan James Walker | 1 |
| #4 | Walker B J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN1013035B | Building materials | |
| CA1240827A | Lightweight aggregate | |
| GB8409468D0 | Building materials | |
| GB8409467D0 | Lightweight aggregate | |
| AU2123583A | Lightweight aggregate |