| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 11 | |
| #2 | Canada | 5 | |
| #3 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Civil engineering | |
| #4 | Transport | |
| #5 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Nails | |
| #3 | Ladders | |
| #4 | Ships | |
| #5 | Unspecified technologies | |
| #6 | Accessories for machine tools | |
| #7 | Dredging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hedley Robert Ian | 12 |
| #2 | Hedley Ian | 2 |
| #3 | Whybin Christopher Nash | 2 |
| #4 | Hedley Robert I | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU2003200356A1 | Foldable access device | |
| AUPS040402A0 | Foldable access device | |
| AU6384398A | Rotating locking arrangement | |
| AU6375998A | A tooth wedge assembly | |
| AU4828297A | Access device | |
| AUPO663397A0 | Rotating locking arrangement | |
| AUPO657997A0 | A tooth wedge assembly | |
| AUPO414696A0 | Access device | |
| US5588768A | Locking arrangement | |
| AU6891494A | Improved locking arrangement | |
| CA2128303A1 | Access device | |
| AU6755594A | Access ladder | |
| AU5208290A | Locking arrangement |