Fuel cell apparatus and method for downhole power systems
US-9312557-B2 · Apr 12, 2016 · US
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Walter Joseph patents in 2016
Walter Joseph was listed as an assignee on 1 patent publication in 2016.
| Metric | Value |
|---|---|
| Company | Walter Joseph |
| Year | 2016 |
| Patents | 1 |
Patents
Representative publications for Walter Joseph in 2016.
Top CPC classifications
Most common classification codes for Walter Joseph in 2016.
| CPC | Patents |
|---|---|
| E21B4/04 | 1 |
| E21B41/0085 | 1 |
| H01M8/0273 | 1 |
| H01M8/04089 | 1 |
| H01M8/04104 | 1 |
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