Kelvin Francis GRIFFITHS

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Porthcawl, GB

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic transducer having drop ring connected at resonant node
- Patent number 11,856,382
- Issue date Dec 26, 2023
- Dolby Laboratories Licensing Corporation
- Kelvin Francis Griffiths
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
TRANSIENT MULTI-TONE TEST SIGNAL AND METHOD FOR AUDIO SPEAKERS
- Publication number 20230199414
- Publication date Jun 22, 2023
- Dolby Laboratories Licensing Corporation
- Kelvin Francis GRIFFITHS
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ACOUSTIC TRANSDUCER HAVING DROP RING CONNECTED AT RESONANT NODE
- Publication number 20220400347
- Publication date Dec 15, 2022
- Dolby Laboratories Licensing Corporation
- Kelvin Francis GRIFFITHS
- H04 - ELECTRIC COMMUNICATION TECHNIQUE