Dart valve assembly for a bypass plunger
US-9677389-B2 · Jun 13, 2017 · US
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Lee John M patents
Lee John M is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Lee John M |
| Total patents | 2 |
| First publication | Mar 2, 2017 |
| Latest publication | Jun 13, 2017 |
Notable patents
Publications ranked by popularity score, then publication date.
Dart Valve Assembly for a Bypass Plunger
US-2017058652-A1 · Mar 2, 2017 · US
Recent patents
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Flowco Production Solutions Llc | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B43/121 | 2 |
| F04B53/12 | 2 |