Northeast; Chad
Patent Applications and Registrations
Patent applications and USPTO patent grants for Northeast; Chad.The latest application filed is for "concentric coiled tubing annular fracturing string".
- Northeast; Chad - Calgary CA
| Patent | Date |
|---|---|
| Concentric coiled tubing annular fracturing string App 20070151735 - Ravensbergen; John Edward ; et al. | 2007-07-05 |
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