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Ronnie S. Espiritu
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Castaic, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Speaker surround structure for maximizing cone diameter
Patent number
10,028,061
Issue date
Jul 17, 2018
Harman International Industries, Incorporated
Ronnie S. Espiritu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker surround structure for maximizing cone diameter
Patent number
8,934,656
Issue date
Jan 13, 2015
Harman International Industries, Incorporated
Ronnie S. Espiritu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker surround structure for maximizing cone diameter
Patent number
8,094,865
Issue date
Jan 10, 2012
Harman International Industries, Incorporated
Ronnie S. Espiritu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker surround structure for maximizing cone diameter
Patent number
7,548,631
Issue date
Jun 16, 2009
Harman International Industries, Incorporated
Ronnie S. Espiritu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Compact vehicular loudspeaker with dual-standard mounting system
Patent number
6,505,705
Issue date
Jan 14, 2003
Harman International Industries, Incorporated
Ronnie S. Espiritu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio speaker having rotatable tweeter
Patent number
6,002,780
Issue date
Dec 14, 1999
Harman International Industries, Incorporated
Ronnie S. Espiritu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Twist-lock-mountable versatile loudspeaker mount
Patent number
5,867,583
Issue date
Feb 2, 1999
Harman International Industries, Inc.
Robert E. Hazelwood
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
SPEAKER SURROUND STRUCTURE FOR MAXIMIZING CONE DIAMETER
Publication number
20150125024
Publication date
May 7, 2015
HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
Ronnie S. ESPIRITU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SPEAKER SURROUND STRUCTURE FOR MAXIMIZING CONE DIAMETER
Publication number
20120183171
Publication date
Jul 19, 2012
HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
Ronnie S. Espiritu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SPEAKER SURROUND STRUCTURE FOR MAXIMIZING CONE DIAMETER
Publication number
20090324000
Publication date
Dec 31, 2009
HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
Ronnie S. Espiritu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Speaker surround structure for maximizing cone diameter
Publication number
20040086143
Publication date
May 6, 2004
Harman International Industries Incorporated
Ronnie S. Espiritu
H04 - ELECTRIC COMMUNICATION TECHNIQUE