Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9792803 | Secure PIN entry device | John Henry Barrowman | 2017-10-17 |
| 8954750 | Secure PIN entry device | John Henry Barrowman | 2015-02-10 |
| 8621235 | Secure pin entry device | John Henry Barrowman | 2013-12-31 |
| 7898413 | Anti-tamper protected enclosure | Steve Hsu, Daniel Hong, Kenji Chao | 2011-03-01 |
| 6588660 | Passive contactless smartcard security system | Timothy W. Buescher | 2003-07-08 |
| D272355 | Data transmission multiplexer control panel | Vasant H. Acharya, Gilbert S. Hunt | 1984-01-24 |