HDA Entertainment, Inc.

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Timonium, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Integrated circuit for audio enhancement system
- Patent number 5,642,427
- Issue date Jun 24, 1997
- HDA Entertainment, Inc.
- Joel Katz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Integrated circuit for audio enhancement system
- Patent number 5,425,106
- Issue date Jun 13, 1995
- HDA Entertainment, Inc.
- Joel Katz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
74734014 - VIRTUAL MUSIC REALITY
- Serial number 74734014
- Filing date Sep 8, 1995
- HDA ENTERTAINMENT, INC.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments