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Home > About us > Our Intellectual Property > Patents List
Patents List
Granted US Patents in the name of Cambridge Display Technology

Patent number Title Priority date
US4923288 Optical Modulators based on Polymers 1987-05-21
US5247190 Semiconductive Copolymers for use in Electroluminescent Devices 1989-04-20
US5399502 Method of manufacturing of electroluminescent devices 1989-04-20
US5328809 Patterning of semiconductive polymers 1990-08-24
US5401827 Semiconductive copolymers for use in luminescent devices 1990-08-24
US5425125 Optical device incorporating semiconductive conjugated polymer 1990-08-24
US5512654 Semiconductive copolymers for use in luminescent devices 1990-08-24
US5672678 Semiconductive copolymers for use in luminescent devices 1990-08-24
US5747182 Manufacture of electroluminescent devices 1992-07-27
US5807627 Electroluminescent devices 1992-07-27
US5653914 Electroluminescent device comprising a chromophoric polymeric composition 1992-12-18
US5514878 Polymers for Electroluminescent Devices 1993-06-10
US5821690 Electroluminescent devices having a light-emitting layer 1993-08-26
US6117567 Colour Source And Method For Its Fabrication 1994-05-17
US5698048 Photoresponsive materials 1994-12-09
US6559256 Polymers for use in optical devices 1994-12-28
US5929562 Organic light emitting devices 1995-04-18
US5965979 Manufacture of organic light emitting devices 1995-04-18
US6111560 Display with a light modulator and a light source 1995-04-18
US6188175 Electroluminescent device 1995-04-18
US6211613 High contrast electroluminescent displays 1996-04-10
US6395328 Organic light emitting diode color display 1996-04-10
US6541790 Organic light emitting device and method of fabricating the same 1996-05-03
US5523555 Photodetector device having a semiconductive conjugated polymer 1996-06-04
US6423428 Conjugated copolymers for use in luminescent devices 1996-07-29
US6605823 Electroluminescent devices with electrode protection 1996-07-29
US6255774 Multilayer cathode for organic light-emitting device 1996-09-04
US6402579 Electrode deposition for organic light-emitting devices 1996-09-04
US6488555 Electrode deposition for organic light-emitting devices 1996-09-04
US5965901 Electroluminescent devices with voltage drive scheme 1996-11-28
US6002206 Organic EL devices and operation thereof 1996-11-28
US5969475 Tuneable microcavities 1996-12-04
US6153711 Rheology modification of precursor solutions 1997-01-28
US6416885 Electroluminescent device 1997-08-29
US6551727 Electroluminescent device 1997-08-29
US6580212 Display device with improved contrast 1997-09-01
US6403809 Compounds for electronic devices 1997-09-05
US6626566 Compounds for electronic devices 1997-09-05
US6384528 Electroluminescent device 1997-11-21
US6559593 Sputter deposition 1997-12-01
US6558219 Method of making electroluminescent devices having varying electrical and/or optical properties 1998-03-13
US6340789 Multilayer photovoltaic or photoconductive devices 1998-03-20
US6340732 Conjugated polymers 1998-03-31
US6592969 Flexible substrates for organic devices 1998-04-02
US6603139 Polymer devices 1998-04-16
US6635990 Display device with primary and secondary light-emissive regions 1998-06-19
US6693611 Display devices 1998-08-19
US6576093 Method of producing organic light-emitting devices 1998-12-17
US6353072 Polymer preparation from boron derivative functional group-containing monomers 1999-03-05
US6512082 Polymers, their preparation and uses 2000-01-05
US6670213 Method of preparing photoresponsive devices, and devices made thereby 2001-10-10

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Pending patent applications in the name of Cambridge Display Technology

Application number Title Priority date
WO9859529A1 Colour filters for organic light-emissive devices 1997-06-21
WO9948160A1 Electroluminescent devices 1998-03-13
WO9953472A1 Display control device with modes for reduced power consumption 1998-05-13
WO9913692A1 Self-assembled transport layers for oleds 1998-05-21
WO9966483A1 Backlit displays 1998-06-19
WO9920711A1 Polymeric materials for electroluminescent devices 1998-07-08
WO0003950A1 Optical devices 1998-07-14
WO0035028A1 Display devices 1999-01-21
WO0048257A1 Opto-electrical devices 1999-02-12
WO0048258A1 Opto-electrical devices 1999-02-12
WO0036662A1 Organic light-emitting devices 1999-03-26
WO0004593A1 Optical devices 1999-04-06
WO0060612A1 Method for doping a polymer 1999-04-06
WO0076009A1 Light-emitting devices 1999-06-09
WO0076008A1 Method of producing organic light-emissive devices 1999-06-11
WO0107502A2 Polymerisation method 1999-07-24
WO0036661A1 Organic light-emitting devices 1999-09-24
WO0129909A1 Light-emitting devices 1999-10-15
WO0139287A1 Method of producing an organic light-emissive device 1999-11-26
WO0149768A2 Luminescent polymer 2000-01-05
WO0159854A1 Optoelectronic devices 2000-02-09
WO0162822A1 Electro-luminescent polymers, their preparation and uses 2000-02-25
WO0162869A1 Luminescent polymer 2000-02-25
WO0188990A1 Light-emitting devices 2000-05-17
WO0166618A1 Copolymer 2000-05-18
WO0199195A1 Light-emitting devices 2000-06-23
WO0205362A1 Method of producing an organic light-emissive device 2000-07-06
WO0218513A1 A formulation for depositing a conjugated polymer layer 2000-08-30
WO0226856A1 Twisted polymers, uses thereof and processes for the preparation of statistical copolymers 2000-09-26
WO0226859A1 Polymer and uses thereof 2000-09-26
WO0228983A1 Light-emissive polymer blends and light-emissive devices made from the same 2000-10-03
WO02059121A1 Monomer for use in preparation of a polymer to be used in optical devices 2001-01-24
WO02066537A1 (Partially) conjugated polymer process for its preparation and use in electroluminescent devices 2001-02-21
WO02069119A2 Formulation and method for depositing a material on a substrate 2001-02-27
WO02083760A2 Polymer, its preparation and uses 2001-04-11
WO02092723A1 Substituted fluorene polymers, their preparation and use in optical devices 2001-05-11
WO02092724A1 Substituted fluorene polymers, their preparation and uses 2001-05-11
WO03000773A1 Polymer containing substituted triphenylamine units 2001-06-22
WO03012891A1 Electrode compositions 2001-07-26
WO03012892A2 Multi-step organic light-emissive devices 2001-08-01
WO03019696A2 Electroluminescent device 2001-08-25
WO03021340A2 Optoelectronic displays 2001-08-30
WO03035713A1 Conjugated polymer preparation via suzuki-coupling in emulsion 2001-10-25
WO03035714A1 Triarylamine containing monomers for optoelectronic devices 2001-10-25
WO03035796A1 Modified suzuki-method for polymerisation of aromatic monomers 2001-10-25
WO03038790A2 Display drivers 2001-10-31
WO03038798A2 Display driver circuits 2001-10-31
WO03073526A2 Method for preparing light emitting devices 2002-02-26
WO03079322A1 Display driver circuits 2002-03-14
WO03083960A1 Method of preparation of organic optoelectronic and electronic devices and devices thereby obtained 2002-03-27
WO03091983A1 Display driver circuits for organic light emitting diode displays with skipping of blank lines 2002-04-25
WO03092072A2 Display devices 2002-04-25
WO03094140A1 Electroluminescent display and driver circuit to reduce photoluminesence 2002-05-01
WO03095586A1 Polymers their preparation and uses 2002-05-10
WO03101671A1 Suction device 2002-05-31
WO03107313A2 Display driver circuits 2002-06-18
WO03107318A1 Display driver circuits for electroluminescent displays, using constant current generators 2002-06-18
WO04006350A2 Combined information display and information input device 2002-07-03
WO04006291A2 Patterning method 2002-07-09
WO04009864A1 Pellet feeder 2002-07-22
WO04017441A1 Organic optoelectronic device encapsulation package 2002-08-17
WO04018063A1 Interconnectable building blocks 2002-08-21

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Granted US Patents in the name of Cambridge Display Technology & Seiko Epson Corporation

Patent number Title Priority date
US 6,429,601 Electroluminescent Devices 1998-02-18
US 6,518,700 Display Devices 1998-02-23
US 6,498,049 Display Devices 1999-02-19
US 6,639,250 Multiple-Wavelength Light Emitting Device and Electronic Apparatus 1999-08-20

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Pending applications in the name of Cambridge Display Technology & Seiko Epson Corporation

Application number Title Priority date
WO 0059267A1 Composition, method for preparing film and functional element and method for preparing the same 1999-03-29
WO0076010A1 Multiple wavelength light emitting device, electronic apparatus, and interference mirror 1999-06-02
WO0116251A1 A formulation for depositing a light-emitting polymer layer 1999-08-31
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