El Hakam; Carmel Z.
Patent Applications and Registrations
Patent applications and USPTO patent grants for El Hakam; Carmel Z..The latest application filed is for "corrosion protection for head section of earth boring bit".
- El Hakam; Carmel Z. - Houston TX
| Patent | Date |
|---|---|
| Earth boring drill bits made from a low-carbon, high-molybdenum alloy Grant 7,905,301 - El Hakam , et al. March 15, 2 | 2011-03-15 |
| Corrosion protection for head section of earth boring bit Grant 7,823,664 - Massey , et al. November 2, 2 | 2010-11-02 |
| Corrosion Protection for Head Section of Earth Boring Bit App 20090044984 - Massey; Alan J. ; et al. | 2009-02-19 |
| Earth Boring Drill Bits Made From A Low-Carbon, High-Molybdenum Alloy App 20090008154 - El Hakam; Carmel Z. ; et al. | 2009-01-08 |
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