Speakman; Christopher D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Speakman; Christopher D..The latest application filed is for "identification method for dip galvanizing".
- Speakman; Christopher D. - Greenfield OH
| Patent | Date |
|---|---|
| Identification method for dip galvanizing Grant 6,764,016 - Robertson , et al. July 20, 2 | 2004-07-20 |
| Identification method for dip galvanizing App 20040074972 - Robertson, John A. ; et al. | 2004-04-22 |
| Colored patch laser marking Grant 6,518,542 - Robertson , et al. February 11, 2 | 2003-02-11 |
| Laser Markable Micro-pore Aluminum Tags And Method Of Their Fabrication App 20020132105 - Robertson, John A. ; et al. | 2002-09-19 |
| Laser markable micro-pore aluminum tags and method of their fabrication Grant 6,451,421 - Robertson , et al. September 17, 2 | 2002-09-17 |
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