| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 3 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Canada | 2 | |
| #5 | Brazil | 1 | |
| #6 | China | 1 | |
| #7 | Hong Kong | 1 | |
| #8 | Mexico | 1 | |
| #9 | New Zealand | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Digital networks | |
| #3 | IT methods for management | |
| #4 | Control |
| # | Name | Total Patents |
|---|---|---|
| #1 | Clark Dereck B | 15 |
| #2 | Clark D B | 1 |
| #3 | Clark Dereck D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU1539299A | Methods and apparatus for writing to tracks on magnetic-stripe cards | |
| US5815577A | Methods and apparatus for securely encrypting data in conjunction with a personal computer | |
| NZ283566A | Encryption module with keypad allows secure connection of remote pc to central computer to facilitate financial transactions |