P

Inventor

WREEDE JOHN E

US57 patents
⚠️ This page may combine multiple inventors who share the name “WREEDE JOHN E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HUGHES AIRCRAFT CO

49 patents
US5455693AOct 3, 1995

Display hologram

HUGHES AIRCRAFT CO192 citations99
US5406395AApr 11, 1995

Holographic parking assistance device

HUGHES AIRCRAFT CO590 citations98
US5606433AFeb 25, 1997

Lamination of multilayer photopolymer holograms

HUGHES AIRCRAFT CO124 citations97
US5016953AMay 21, 1991

Reduction of noise in computer generated holograms

HUGHES AIRCRAFT CO95 citations96
US4960311AOct 2, 1990

Holographic exposure system for computer generated holograms

HUGHES AIRCRAFT CO107 citations96
US5282066AJan 25, 1994

Multiple layer holograms

HUGHES AIRCRAFT CO61 citations95
US5499118AMar 12, 1996

System for copying multiple holograms

HUGHES AIRCRAFT CO98 citations94
US5315417AMay 24, 1994

Low noise transmission holographic optical element

HUGHES AIRCRAFT CO30 citations93
US5214425AMay 25, 1993

Superimposed tell-tales

HUGHES AIRCRAFT CO26 citations93
US5082337AJan 21, 1992

Filter device employing a holographic element

HUGHES AIRCRAFT CO25 citations93
US4916593AApr 10, 1990

Remotely illuminated transparent holographic stoplight for automobiles

HUGHES AIRCRAFT CO27 citations93
US4799746AJan 24, 1989

Efficient holograms and method for making same

HUGHES AIRCRAFT CO36 citations93
US5318816AJun 7, 1994

Laminated hologram decals for identification cards and the like

HUGHES AIRCRAFT CO26 citations92
US4983003AJan 8, 1991

Alternate methods of side lobe reduction in holograms

HUGHES AIRCRAFT CO24 citations92
US4687720AAug 18, 1987

Side lobe suppression in holograms using pre-exposure

HUGHES AIRCRAFT CO37 citations92
US4458977AJul 10, 1984

Systems for forming improved reflection holograms with a single beam

HUGHES AIRCRAFT CO29 citations92
US4329409AMay 11, 1982

Process for fabricating stable holograms

HUGHES AIRCRAFT CO34 citations92
US5495227AFeb 27, 1996

Multiple format holographic CHMSLS

HUGHES AIRCRAFT CO20 citations91
US4330604AMay 18, 1982

Fabrication of holograms on plastic substrates

HUGHES AIRCRAFT CO41 citations91
US5162927ANov 10, 1992

High efficiency holograms by multiple-layer holography

HUGHES AIRCRAFT CO39 citations90
US4815800AMar 28, 1989

Flare reduction in holograms

HUGHES AIRCRAFT CO31 citations90
US5138470AAug 11, 1992

Guard holograms

HUGHES AIRCRAFT CO21 citations82
US4966426AOct 30, 1990

Reverse light blocking hologram for a center high mounted stoplight

HUGHES AIRCRAFT CO20 citations82
US4853306AAug 1, 1989

Method and apparatus for dehydrating dichromatic gelatin holograms

HUGHES AIRCRAFT CO20 citations82
US4789211ADec 6, 1988

Hologram stabilizing assembly and method

HUGHES AIRCRAFT CO23 citations82
US4458978AJul 10, 1984

Double beam systems for forming improved holograms

HUGHES AIRCRAFT CO21 citations81
US4456328AJun 26, 1984

Systems for forming improved diffusion holograms

HUGHES AIRCRAFT CO25 citations81
US5519516AMay 21, 1996

One way holograms

HUGHES AIRCRAFT CO10 citations74
US5471328ANov 28, 1995

Segmented image holographic disks

HUGHES AIRCRAFT CO8 citations74
US5455692AOct 3, 1995

Dual image CHMSLS

HUGHES AIRCRAFT CO15 citations74
US5278008AJan 11, 1994

Diffraction efficiency control in holographic elements

HUGHES AIRCRAFT CO19 citations74
US5210625AMay 11, 1993

Holographic efficiency adjustment

HUGHES AIRCRAFT CO9 citations74
US5196951AMar 23, 1993

Reflection holograms without transmission ghosts

HUGHES AIRCRAFT CO12 citations74
US5105287AApr 14, 1992

Reduction of holographic noise with short laser pulses

HUGHES AIRCRAFT CO9 citations74
US4988152AJan 29, 1991

Holographic rearview mirror and method of producing same

HUGHES AIRCRAFT CO10 citations74
US4984856AJan 15, 1991

Holographic exposure system to reduce spurious hologram noise

HUGHES AIRCRAFT CO18 citations74
US4953923ASep 4, 1990

System for reducing noise holograms

HUGHES AIRCRAFT CO11 citations74
US4854674AAug 8, 1989

Process for improving holographic efficiency

HUGHES AIRCRAFT CO7 citations74
US4826290AMay 2, 1989

Method of producing stable holograms in dichromatic gelatin

HUGHES AIRCRAFT CO16 citations74
US5401346AMar 28, 1995

Laminated hologram decals for identification cards and the like

HUGHES AIRCRAFT CO12 citations73
US5155605AOct 13, 1992

Rotating disk with spatially stabilized images

HUGHES AIRCRAFT CO12 citations73
US4878719ANov 7, 1989

Automotive wheel covers with spatially stabilized images

HUGHES AIRCRAFT CO11 citations73
US4808500AFeb 28, 1989

Stabilizing hydrophilic gelatin holograms having improved resistance to swelling

HUGHES AIRCRAFT CO10 citations73
US4478490AOct 23, 1984

Noise reduction in coherent systems

HUGHES AIRCRAFT CO9 citations73
US5497251AMar 5, 1996

Combination specular and diffuse image CHMSL

HUGHES AIRCRAFT CO9 citations72
US5327266AJul 5, 1994

Simultaneous multiple exposure holograms using coherence mismatch to prevent crosstalk

HUGHES AIRCRAFT CO10 citations72
US5555108ASep 10, 1996

Holographic exposure prism

HUGHES AIRCRAFT CO8 citations71
US5499116AMar 12, 1996

Encoded hologram for producing a machine readable image and a human readable image

HUGHES AIRCRAFT CO14 citations71
US5052765AOct 1, 1991

Scanning fiber optic holographic exposure and feedback system

HUGHES AIRCRAFT CO10 citations69

MC DONNELL DOUGLAS CORP

1 patent

Showing the top 50 of 57 patents by PatentIndex Score.