Renfro; Charles K.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Renfro; Charles K..The latest application filed is for "multi-chambered fluid mixing apparatus and method".
- Renfro; Charles K. - Elizabethton TN
| Patent | Date |
|---|---|
| Multi-chambered fluid mixing apparatus and method Grant 8,132,958 - Renfro March 13, 2 | 2012-03-13 |
| Method for mixing additive into viscous material Grant 7,980,755 - Renfro July 19, 2 | 2011-07-19 |
| Method for mixing colorant with a viscous material Grant 7,407,321 - Renfro August 5, 2 | 2008-08-05 |
| Multi-chambered Fluid Mixing Apparatus And Method App 20080144433 - Renfro; Charles K. | 2008-06-19 |
| Mixing apparatus and method App 20070177455 - Renfro; Charles K. | 2007-08-02 |
| Mixing apparatus having rotational and axial motion Grant 7,070,318 - Renfro July 4, 2 | 2006-07-04 |
| Mixing apparatus and method Grant 6,910,799 - Renfro June 28, 2 | 2005-06-28 |
| Mixing apparatus and method App 20030099153 - Renfro, Charles K. | 2003-05-29 |
| Mixing apparatus and method App 20020154568 - Renfro, Charles K. | 2002-10-24 |
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