Thomas J. Johnson

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Chesterfield, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Architectural sound enhancement with pre-filtered masking sound
- Patent number 7,548,854
- Issue date Jun 16, 2009
- AWI Licensing Company
- Kenneth P. Roy
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Plenum mounted, flat panel masking loudspeaker system and method fo...
- Patent number 6,164,408
- Issue date Dec 26, 2000
- Atlas Sound
- Michael E. Lamm
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Enhanced sound processing system for use with sound radiators
- Publication number 20030198339
- Publication date Oct 23, 2003
- Kenneth P. Roy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Architectural sound enhancement with pre-filtered masking sound
- Publication number 20030144848
- Publication date Jul 31, 2003
- Kenneth P. Roy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Architectural sound enhancement with radiator response matching EQ
- Publication number 20030144847
- Publication date Jul 31, 2003
- Kenneth P. Roy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Architectural sound enhancement with DTMF control
- Publication number 20030142814
- Publication date Jul 31, 2003
- Kenneth P. Roy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Architectural sound enhancement with test tone diagnostics
- Publication number 20030142833
- Publication date Jul 31, 2003
- Kenneth P. Roy
- H04 - ELECTRIC COMMUNICATION TECHNIQUE