Expandable slip ring for use with liner hangers and liner top packers
US-8939220-B2 · Jan 27, 2015 · US
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Harris Michael J patents in 2015
Harris Michael J was listed as an assignee on 1 patent publication in 2015.
| Metric | Value |
|---|---|
| Company | Harris Michael J |
| Year | 2015 |
| Patents | 1 |
Patents
Representative publications for Harris Michael J in 2015.
Top CPC classifications
Most common classification codes for Harris Michael J in 2015.
| CPC | Patents |
|---|---|
| E21B33/04 | 1 |
| E21B33/10 | 1 |
| E21B33/1295 | 1 |
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