C. Ronald Coffin

Person

Topsfield, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Repairable electromagnetic linear motor for loudspeakers and the like
- Patent number 6,778,677
- Issue date Aug 17, 2004
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker system with dust protection
- Patent number 6,714,656
- Issue date Mar 30, 2004
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker enclosure
- Patent number 6,513,624
- Issue date Feb 4, 2003
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Compound driver for acoustical applications
- Patent number 6,466,676
- Issue date Oct 15, 2002
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker system
- Patent number 6,431,309
- Issue date Aug 13, 2002
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dual cone loudspeaker
- Patent number 6,343,128
- Issue date Jan 29, 2002
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fluid jet cutting system
- Patent number 6,216,573
- Issue date Apr 17, 2001
- Hydrocision, Inc.
- Timothy E. Moutafis
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hand tightenable high pressure connector
- Patent number 5,713,878
- Issue date Feb 3, 1998
- Surgi-Jet Corporation
- Timothy E. Moutafis
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Repairable electromagnetic linear motor for loudspeakers and the like
- Publication number 20040013283
- Publication date Jan 22, 2004
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTROMAGNETIC LINEAR MOTOR FOR LOUDSPEAKERS AND THE LIKE
- Publication number 20040013282
- Publication date Jan 22, 2004
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Fluid jet cutting system
- Publication number 20020050197
- Publication date May 2, 2002
- Timothy E. Moutafis
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Loudspeaker enclosure
- Publication number 20010037910
- Publication date Nov 8, 2001
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Compound driver for acoustical applications
- Publication number 20010033668
- Publication date Oct 25, 2001
- C. Ronald Coffin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Fluid jet cutting system
- Publication number 20010002562
- Publication date Jun 7, 2001
- Timothy E. Moutafis
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

C. Ronald Coffin

Person

Patents Grantslast 30 patents

Repairable electromagnetic linear motor for loudspeakers and the like

Loudspeaker system with dust protection

Loudspeaker enclosure

Compound driver for acoustical applications

Loudspeaker system

Dual cone loudspeaker

Fluid jet cutting system

Hand tightenable high pressure connector

Patents Applicationslast 30 patents

Repairable electromagnetic linear motor for loudspeakers and the like

ELECTROMAGNETIC LINEAR MOTOR FOR LOUDSPEAKERS AND THE LIKE

Fluid jet cutting system

Loudspeaker enclosure

Compound driver for acoustical applications

Fluid jet cutting system