Coffin; C. Ronald
Patent Applications and Registrations
Patent applications and USPTO patent grants for Coffin; C. Ronald.The latest application filed is for "electromagnetic linear motor for loudspeakers and the like".
- Coffin; C. Ronald - Topsfield MA
| Patent | Date |
|---|---|
| Repairable electromagnetic linear motor for loudspeakers and the like Grant 6,778,677 - Coffin August 17, 2 | 2004-08-17 |
| Loudspeaker system with dust protection Grant 6,714,656 - Coffin March 30, 2 | 2004-03-30 |
| Electromagnetic Linear Motor For Loudspeakers And The Like App 20040013282 - Coffin, C. Ronald | 2004-01-22 |
| Repairable electromagnetic linear motor for loudspeakers and the like App 20040013283 - Coffin, C. Ronald | 2004-01-22 |
| Compound driver for acoustical applications Grant 6,466,676 - Coffin October 15, 2 | 2002-10-15 |
| Loudspeaker system Grant 6,431,309 - Coffin August 13, 2 | 2002-08-13 |
| Fluid jet cutting system App 20020050197 - Moutafis, Timothy E. ; et al. | 2002-05-02 |
| Dual cone loudspeaker Grant 6,343,128 - Coffin January 29, 2 | 2002-01-29 |
| Loudspeaker enclosure App 20010037910 - Coffin, C. Ronald | 2001-11-08 |
| Compound driver for acoustical applications App 20010033668 - Coffin, C. Ronald | 2001-10-25 |
| Fluid jet cutting system App 20010002562 - Moutafis, Timothy E. ; et al. | 2001-06-07 |
| Fluid jet cutting system Grant 6,216,573 - Moutafis , et al. April 17, 2 | 2001-04-17 |
| Hand tightenable high pressure connector Grant 5,713,878 - Moutafis , et al. February 3, 1 | 1998-02-03 |
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