Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11282024 | Timeclock control system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2022-03-22 |
| 11074538 | Adaptive alertness testing system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2021-07-27 |
| 10970664 | Impairment detection system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2021-04-06 |
| 10956851 | Adaptive alertness testing system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2021-03-23 |
| 10867271 | Computer access control system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2020-12-15 |
| 10867272 | Geo-fencing system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2020-12-15 |
| 10586197 | Impairment detection system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2020-03-10 |
| 10586198 | Cognitive testing system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2020-03-10 |
| 10430746 | Area access control system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2019-10-01 |
| 10395204 | Interlock control system and method | Marcus T. Wichmann, Darren B. Chamberlin | 2019-08-27 |
| 6743171 | Relocatable mental function testing gateway | Theodore D. Langley | 2004-06-01 |
| 6485417 | Alzheimer's tester | Theodore D. Langley | 2002-11-26 |
| 6113538 | Alertness tester | Theodore D. Langley | 2000-09-05 |