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Charles Emory Hughes II
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Milford, PA, US
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Patents Grants
last 30 patents
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Patent Grant
Optimum driver spacing for a line array with a minimum number of ra...
Patent number
7,260,228
Issue date
Aug 21, 2007
Altec Lansing, a division of Plantronics, Inc.
Charles Emory Hughes
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
Dipole and monopole surround sound speaker system
Publication number
20060072773
Publication date
Apr 6, 2006
Altec Lansing Technologies, Inc.
Charles Emory Hughes
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optimum driver spacing for a line array with a minimum number of ra...
Publication number
20050201582
Publication date
Sep 15, 2005
Altec Lansing Technologies, Inc.
Charles Emory Hughes
H04 - ELECTRIC COMMUNICATION TECHNIQUE