Kelvin Francis GRIFFITHS

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Bridgend, GB

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Patents Grantslast 30 patents

Information Patent Grant
Sealed pipe-loaded loudspeaker for improving low frequency response...
- Patent number 10,536,769
- Issue date Jan 14, 2020
- Dolby International AB
- Kelvin Francis Griffiths
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Force balanced micro transducer array
- Patent number 10,250,994
- Issue date Apr 2, 2019
- Dolby International AB
- Kelvin Francis Griffiths
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SEALED PIPE-LOADED LOUDSPEAKER FOR IMPROVING LOW FREQUENCY RESPONSE...
- Publication number 20170318383
- Publication date Nov 2, 2017
- DOLBY INTERNATIONAL AB
- Kelvin Francis GRIFFITHS
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Force Balanced Micro Transducer Array
- Publication number 20170272866
- Publication date Sep 21, 2017
- DOLBY INTERNATIONAL AB
- Kelvin Francis GRIFFITHS
- H04 - ELECTRIC COMMUNICATION TECHNIQUE