Safety valve coupling and method of manufacturing valve
US-10626703-B2 · Apr 21, 2020 · US
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Johnson Jeffrey patents in 2020
Johnson Jeffrey was listed as an assignee on 1 patent publication in 2020.
| Metric | Value |
|---|---|
| Company | Johnson Jeffrey |
| Year | 2020 |
| Patents | 1 |
Patents
Representative publications for Johnson Jeffrey in 2020.
Top CPC classifications
Most common classification codes for Johnson Jeffrey in 2020.
| CPC | Patents |
|---|---|
| E21B17/05 | 1 |
| E21B2034/005 | 1 |
| E21B2200/05 | 1 |
| E21B2200/06 | 1 |
| E21B34/105 | 1 |
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