Koffron; Robert J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Koffron; Robert J..The latest application filed is for "vortex inhibitor".
- Koffron; Robert J. - Farmington Hills MI
| Patent | Date |
|---|---|
| Vortex inhibitor Grant 8,591,802 - Koffron , et al. November 26, 2 | 2013-11-26 |
| Vortex Inhibitor App 20110186602 - Koffron; Robert J. ; et al. | 2011-08-04 |
| Vortex Inhibitor With Sacrificial Rod App 20080116233 - Koffron; Robert J. ; et al. | 2008-05-22 |
| Method and apparatus for delivering metallurgically improved molten metal Grant 7,169,349 - Koffron , et al. January 30, 2 | 2007-01-30 |
| Vortex inhibitor with sacrificial rod App 20040164466 - Koffron, Robert J. ; et al. | 2004-08-26 |
| Vortex inhibitor with sacrificial rod Grant 6,723,275 - Koffron , et al. April 20, 2 | 2004-04-20 |
| Method and apparatus for metal pouring App 20030004602 - Koffron, Robert J. ; et al. | 2003-01-02 |
| Vortex inhibitor with sacrificial rod App 20020093128 - Koffron, Robert J. ; et al. | 2002-07-18 |
| Yield metal pouring system Grant 6,280,499 - Koffron August 28, 2 | 2001-08-28 |
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