Balancing load on milling cutting elements
US-10487606-B2 · Nov 26, 2019 · US
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Campbell John E patents
Campbell John E is listed as an inventor on 8 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Campbell John E |
| Total patents | 8 |
| First publication | Mar 3, 2015 |
| Latest publication | Nov 26, 2019 |
Notable patents
Publications ranked by popularity score, then publication date.
Cycloalkylamines as monoamine reuptake inhibitors
US-9868718-B2 · Jan 16, 2018 · US
Balancing load on milling cutting elements
US-2016090805-A1 · Mar 31, 2016 · US
Extended whipstock and mill assembly
US-9228406-B2 · Jan 5, 2016 · US
Cementing whipstock apparatus and methods
US-9206648-B2 · Dec 8, 2015 · US
Retrieval tool and methods of use
US-2015136398-A1 · May 21, 2015 · US
Cycloalkylamines as monoamine reuptake inhibitors
US-2015126511-A1 · May 7, 2015 · US
Pressure activated flow switch for a downhole tool
US-8967300-B2 · Mar 3, 2015 · 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 |
|---|---|
| Smith International | 6 |
| Campbell John E | 2 |
| Sunovion Pharmaceuticals Inc | 2 |
| Dewey Charles H | 1 |
| Levon Daniel | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.