Operator fatigue monitoring system
US-9990552-B2 · Jun 5, 2018 · US
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Semple John David patents
Semple John David is listed as an inventor on 3 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Semple John David |
| Total patents | 3 |
| First publication | Mar 24, 2016 |
| Latest publication | Jun 5, 2018 |
Notable patents
Publications ranked by popularity score, then publication date.
Locomotive assembly
US-2016264152-A1 · Sep 15, 2016 · US
Operator fatigue monitoring system
US-2016082838-A1 · Mar 24, 2016 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Electro Motive Diesel Inc | 3 |
| Progress Rail Locomotive Inc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G06K9/00845 | 2 |
| A61B5/1114 | 2 |
| A61B5/18 | 2 |
| G06V20/597 | 2 |
| B60K28/066 | 1 |