Auxiliary face seal for submersible well pump seal section
US-9777560-B2 · Oct 3, 2017 · US
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Shaffer Daniel A patents
Shaffer Daniel A is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Shaffer Daniel A |
| Total patents | 2 |
| First publication | May 26, 2016 |
| Latest publication | Oct 3, 2017 |
Notable patents
Publications ranked by popularity score, then publication date.
Auxiliary Face Seal for Submersible Well Pump Seal Section
US-2016145984-A1 · May 26, 2016 · US
Recent patents
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Baker Hughes Inc | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F04D13/10 | 2 |
| F04D29/126 | 2 |
| E21B43/128 | 2 |
| F04D13/086 | 1 |
| F04D29/12 | 1 |