John Holden

Person

Hertfordshire, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for displaying a suspended image
- Patent number 6,467,913
- Issue date Oct 22, 2002
- Central Research Laboratories Limited
- John Graham Holden
- G02 - OPTICS
Information Patent Grant
Apparatus for displaying an image suspended in space
- Patent number 6,421,182
- Issue date Jul 16, 2002
- Central Research Laboratories, Limited
- John Graham Holden
- G02 - OPTICS
Information Patent Grant
Apparatus for displaying an image suspended in space
- Patent number 6,204,973
- Issue date Mar 20, 2001
- Central Research Labs, Ltd.
- John Holden
- G02 - OPTICS
Information Patent Grant
Apparatus forming a border for an image
- Patent number 6,046,710
- Issue date Apr 4, 2000
- Central Research Laboratories Limited
- John Holden
- G02 - OPTICS
Information Patent Grant
Apparatus for displaying a plurality of viewable images of an object
- Patent number 5,726,806
- Issue date Mar 10, 1998
- Central Research Laboratories Limited
- John Holden
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Color sequential illumination system
- Patent number 5,260,625
- Issue date Nov 9, 1993
- THORN EMI plc
- John G. Holden
- G02 - OPTICS
Information Patent Grant
Light sources
- Patent number 5,182,490
- Issue date Jan 26, 1993
- THORN EMI plc
- John G. Holden
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Light sources
- Patent number 5,143,438
- Issue date Sep 1, 1992
- THORN EMI plc
- Len Giddens
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Electroluminescent device
- Patent number 4,982,135
- Issue date Jan 1, 1991
- THORN EMI plc
- Henry A. Benbow
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

John Holden

Person

Patents Grantslast 30 patents

Apparatus for displaying a suspended image

Apparatus for displaying an image suspended in space

Apparatus for displaying an image suspended in space

Apparatus forming a border for an image

Apparatus for displaying a plurality of viewable images of an object

Color sequential illumination system

Light sources

Light sources

Electroluminescent device