Shield for sumping frame of mining machine
US-9903202-B2 · Feb 27, 2018 · US
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Willison John patents
Willison John is listed as an inventor on 5 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Willison John |
| Total patents | 5 |
| First publication | Mar 22, 2016 |
| Latest publication | Feb 27, 2018 |
Notable patents
Publications ranked by popularity score, then publication date.
Shield for sumping frame of mining machine
US-2017089197-A1 · Mar 30, 2017 · US
Air flow system for mining machine
US-9482090-B2 · Nov 1, 2016 · US
Air flow system for mining machine
US-2016160643-A1 · Jun 9, 2016 · US
Air flow system for mining machine
US-9291052-B2 · Mar 22, 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 |
|---|---|
| Joy Mm Delaware Inc | 5 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21C35/22 | 5 |
| E21C27/24 | 5 |
| E21C35/20 | 3 |
| E21C35/223 | 3 |
| E21F5/20 | 3 |