William James Hannan

Person

Concord, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Optical data recorder system
- Patent number 4,506,303
- Issue date Mar 19, 1985
- Itek Corporation
- William J. Hannan
- G11 - INFORMATION STORAGE
Information Patent Grant
Imaging system with enlarged depth of field
- Patent number 4,404,594
- Issue date Sep 13, 1983
- Itek Corporation
- William J. Hannan
- G01 - MEASURING TESTING
Information Patent Grant
Patching tape for diffractive subtractive filter viewgraphs
- Patent number 4,221,465
- Issue date Sep 9, 1980
- RCA Corporation
- William J. Hannan
- G02 - OPTICS
Information Patent Grant
Broadening the spatial frequency pass band of a thermoplastic layer
- Patent number 4,148,636
- Issue date Apr 10, 1979
- RCA Corp.
- Thomas L. Credelle
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color image storage and display utilizing holography
- Patent number 4,142,204
- Issue date Feb 27, 1979
- RCA Corporation
- William J. Hannan
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Broadening the spatial frequency pass band of a thermoplastic layer
- Patent number 4,137,077
- Issue date Jan 30, 1979
- RCA Corporation
- Thomas L. Credelle
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Token and reader for vending machines
- Patent number 4,108,367
- Issue date Aug 22, 1978
- RCA Corporation
- William James Hannan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Format for color diffractive subtractive filters
- Patent number 4,094,584
- Issue date Jun 13, 1978
- RCA Corporation
- William James Hannan
- G02 - OPTICS
Information Patent Grant
Adaptor for inter-relating an external audio input device with a st...
- Patent number 4,040,088
- Issue date Aug 2, 1977
- RCA Corporation
- William James Hannan
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Credit card containing electronic circuit
- Patent number 4,004,133
- Issue date Jan 18, 1977
- RCA Corporation
- William James Hannan
- G06 - COMPUTING CALCULATING COUNTING

William James Hannan

Person

Patents Grantslast 30 patents

Optical data recorder system

Imaging system with enlarged depth of field

Patching tape for diffractive subtractive filter viewgraphs

Broadening the spatial frequency pass band of a thermoplastic layer

Color image storage and display utilizing holography

Broadening the spatial frequency pass band of a thermoplastic layer

Token and reader for vending machines

Format for color diffractive subtractive filters

Adaptor for inter-relating an external audio input device with a st...

Credit card containing electronic circuit