Expandable support ring for packing element containment system
US-2016090813-A1 · Mar 31, 2016 · US
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Maenza Frank J patents in 2016
Maenza Frank J was listed as an assignee on 1 patent publication in 2016.
| Metric | Value |
|---|---|
| Company | Maenza Frank J |
| Year | 2016 |
| Patents | 1 |
Patents
Representative publications for Maenza Frank J in 2016.
Top CPC classifications
Most common classification codes for Maenza Frank J in 2016.
| CPC | Patents |
|---|---|
| E21B33/06 | 1 |
| E21B33/12 | 1 |
| E21B33/1208 | 1 |
| E21B33/1216 | 1 |
| E21B33/128 | 1 |
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