Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10033728 | CAPTCHA challenge incorporating obfuscated characters | Michael S. Brown, Neil I. Readshaw | 2018-07-24 |
| 9699176 | CAPTCHA challenge incorporating obfuscated characters | Michael S. Brown, Neil I. Readshaw | 2017-07-04 |
| 9525686 | Captcha challenge incorporating obfuscated characters | Michael S. Brown, Neil I. Readshaw | 2016-12-20 |
| 9372974 | CAPTCHA challenge incorporating obfuscated characters | Michael S. Brown, Neil I. Readshaw | 2016-06-21 |
| 9338162 | CAPTCHA challenge incorporating obfuscated characters | Michael S. Brown, Neil I. Readshaw | 2016-05-10 |