Barry F. Dowden

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Romsey, GB

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Patents Grantslast 30 patents

Information Patent Grant
Hermetic electro-optic display cell
- Patent number 4,575,190
- Issue date Mar 11, 1986
- International Business Machines Corporation
- John C. Wood
- G02 - OPTICS
Information Patent Grant
Method and electrolytic display for selectively displaying an image
- Patent number 4,526,441
- Issue date Jul 2, 1985
- International Business Machines Corporation
- Barry F. Dowden
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS