Patents by Inventor Ruth Pegington
Ruth Pegington has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240117244Abstract: A method of treating a reaction mixture comprising light-emitting nanoparticles formed upon reaction of a silica-forming compound in the presence of a light-emitting material in a protic, water-miscible solvent. The method comprises forming a phase-separated system comprising: an aqueous phase comprising the protic, water miscible solvent, an organic phase comprising an organic solvent and a separating solvent; and separating the organic phase. The separating solvent is immiscible with water, miscible with the water-miscible protic solvent and miscible with the organic solvent.Type: ApplicationFiled: September 14, 2023Publication date: April 11, 2024Inventors: Ruth Pegington, Jonathan Behrendt
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Patent number: 11788001Abstract: A light-emitting polymer comprising a light-emitting repeat unit in a backbone of the polymer, wherein the polymer has an anisotropy of no more than 0.8 and wherein a transition dipole moment of the light-emitting repeat unit is aligned with the polymer backbone.Type: GrantFiled: November 24, 2020Date of Patent: October 17, 2023Assignee: Sumitomo Chemical Company LimitedInventors: Ruth Pegington, Michael Cass, David Mohamad, Matthew Roberts, William Tarran, Martin Humphries
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Publication number: 20210206911Abstract: A polymer having a first repeat unit of formula (I) and a second repeat unit of formula (II): wherein: R1 is an ionic substituent and R2 is a substituent; R3 and R4 are each independently a non-ionic substituent; R5 independently in each occurrence is a substituent; and each p is independently 0, 1, 2 or 3. A layer of an organic electronic device, e.g. an electron-transporting or electron-injecting layer of an organic light-emitting device, may be formed by deposition of an ink containing the polymer dissolved in a solvent. A light-emitting marker for use in an assay may contain the polymer.Type: ApplicationFiled: January 5, 2021Publication date: July 8, 2021Applicant: Sumitomo Chemical Company LimitedInventors: Ruth Pegington, Martina Pintani
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Publication number: 20210079296Abstract: A light-emitting polymer comprising a light-emitting repeat unit in a backbone of the polymer, wherein the polymer has an anisotropy of no more than 0.8 and wherein a transition dipole moment of the light-emitting repeat unit is aligned with the polymer backbone.Type: ApplicationFiled: November 24, 2020Publication date: March 18, 2021Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Ruth Pegington, Michael Cass, David Mohamad, Matthew Roberts, William Tarran, Martin Humphries
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Patent number: 10870796Abstract: A light-emitting polymer comprising a light-emitting repeat unit in a backbone of the polymer, wherein the polymer has an anisotropy of no more than 0.8 and wherein a transition dipole moment of the light-emitting repeat unit is aligned with the polymer backbone.Type: GrantFiled: February 18, 2016Date of Patent: December 22, 2020Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Ruth Pegington, Michael Cass, David Mohamad, Matthew Roberts, William Tarran, Martin Humphries
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Patent number: 10580992Abstract: A polymer comprising one or more optionally substituted repeat units of formula (I): wherein each Ar1 independently represents a substituted or unsubstituted aromatic or heteroaromatic group; each Ar2 independently represents a substituted or unsubstituted aromatic or heteroaromatic group; n and m in each occurrence is at least 1; and R1 and R2 are substituents wherein R1 and R2 are different.Type: GrantFiled: November 21, 2017Date of Patent: March 3, 2020Assignees: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Ruth Pegington, Sophie Barbara Heidenhain, Mary J. McKiernan
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Patent number: 10573817Abstract: A composition comprising a first material substituted with at least one group of formula (I) and a second material substituted with at least one group selected from groups of formulae (IIa) and (IIb): wherein: Sp1 and Sp2 are spacer groups; NB independently in each occurrence is a norbornene group that may be unsubstituted or substituted with one or more substituents; n1 and n2 are 0 or 1; m1 is 1 if n1 is 0 and m1 is at least 1 if n1 is 1; m2 is 1 if n2 is 0 and m2 is at least 1 if n2 is 1; Ar1 represents an aryl or heteroaryl group; R1 independently in each occurrence is H or a substituent; and * represents a point of attachment to the first or second material. The composition may be used to form a layer of an organic electronic device, for example the hole-transporting layer of an organic light-emitting device.Type: GrantFiled: July 8, 2015Date of Patent: February 25, 2020Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Jonathan Pillow, Martin Humphries, Ruth Pegington, Florence Bourcet, Yonek Hleba, Thomas Kugler, Sheena Zuberi
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Publication number: 20200055885Abstract: A metal complex of formula (I): M(L1)x(L2)y (I) wherein: M is a second or third row transition metal; L1 in each occurrence is independently a light-emitting ligand; L2 is an auxiliary ligand; x is at least 1; y is at least 1; each L1 is a group of formula (IIa) or (IIb): wherein R1-R10 are each independently H or a substituent with the proviso at least one of R3, R5 and R9 of at least one L1 is a group of formula —(Ar)p wherein Ar in each occurrence is independently an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents, and p is at least 2.Type: ApplicationFiled: June 24, 2016Publication date: February 20, 2020Applicants: Cambridge Display Techology Limited, Sumitomo Chemical Company LimitedInventors: William Tarran, Kiran Kamtekar, Ruth Pegington, Michael Cass, Matthew Roberts
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Patent number: 10434102Abstract: An OLED comprising a hole-transporting layer and light-emitting layer wherein the hole-transporting layer comprises a hole-transporting polymer wherein no more than 5% of the polystyrene equivalent polymer weight measured by gel permeation chromatography consists of chains with weight of less than 50,000.Type: GrantFiled: November 21, 2017Date of Patent: October 8, 2019Assignees: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Ruth Pegington, Martin Humphries
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Patent number: 10396287Abstract: An organic electronic device comprising an anode, a cathode, a semiconducting layer between the anode and the cathode and a hole transporting layer between the anode and the semiconducting layer, the hole-transporting layer comprising a co-polymer comprising repeat units of formula (I) and one or more co-repeat units: (I) wherein: Ar1 independently in each occurrence represents a fused aryl or fused heteroaryl group that may be unsubstituted or substituted with one or more substituents; Ar2 represents an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; R independently in each occurrence represents a substituent; and m is 1 or 2, preferably 1; and each Ar1 is directly bound to an aromatic or heteroaromatic group of a co-repeat unit.Type: GrantFiled: January 16, 2013Date of Patent: August 27, 2019Assignees: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Jonathan Pillow, Richard J. Wilson, Sophie Barbara Heidenhain, Ruth Pegington, Alexander Doust, Richard Owoare
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Patent number: 10392476Abstract: A polymer having a backbone of alternating N atoms and aromatic or heteroaromatic groups including a repeating structure of formula (I) wherein: R3 independently in each occurrence is a substituent; m is 0 or a positive integer; Ar1 and Ar2 are an aryl or heteroaryl group and at least one group selected from Ar1 and Ar2 has formula (II) wherein: each x is independently 0 or a positive integer; each y is independently 0 or a positive integer, and R1 and R2 independently in each occurrence is a substituent.Type: GrantFiled: November 28, 2014Date of Patent: August 27, 2019Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Kiran Kamtekar, Ruth Pegington
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Publication number: 20190221757Abstract: A metal complex of formula (I): M(L1)x(L2)y??(I) wherein: M is a second or third row transition metal; L1 in each occurrence is independently a light-emitting ligand; L2 is an auxiliary ligand; x is at least 1; y is at least 1; each L1 is a group of formula (IIa) or (IIb): wherein R1-R10 are each independently H or a substituent with the proviso at least one of R3, R5 and R9 of at least one L1 is a group of formula —(Ar)p wherein Ar in each occurrence is independently an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents, and p is at least 2.Type: ApplicationFiled: February 13, 2019Publication date: July 18, 2019Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: William Tarran, Kiran Kamtekar, Ruth Pegington, Michael Cass, Matthew Roberts
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Patent number: 10323123Abstract: Methods of metal-catalysed polymerisation are described using a metal catalyst of formula (III): wherein R3 in each occurrence is independently selected from C1-10 alkyl and aryl that may be unsubstituted or substituted with one or more substituents; y is 0 or 2; and Z?is an anion. Methods described include Buchwald-type and Suzuki-type polymerisation.Type: GrantFiled: February 8, 2017Date of Patent: June 18, 2019Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Florence Bourcet, Kiran Kamtekar, Ruth Pegington, James Morey
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Patent number: 10280262Abstract: Methods of metal-catalysed polymerisation are described using a metal catalyst of formula (III): wherein R3 in each occurrence is independently selected from C1-10 alkyl and aryl that may be unsubstituted or substituted with one or more substituents; y is 0 or 2; and Z?is an anion. Methods described include Buchwald-type and Suzuki-type polymerisation.Type: GrantFiled: February 8, 2017Date of Patent: May 7, 2019Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Florence Bourcet, Kiran Kamtekar, Ruth Pegington, James Morey
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Patent number: 10205114Abstract: A composition suitable for use in an organic light-emitting layer (103) of an organic light-emitting device having an anode (101) and a cathode (105), the composition comprising a fluorescent light-emitting material, a first triplet-accepting material and a second triplet-accepting material that is different from the first triplet-accepting material. The fluorescent light-emitting material may be a repeat unit of a light-emitting polymer, and the first and second triplet-accepting materials may independently be repeat units of the light-emitting polymer or may be mixed with the fluorescent light-emitting material.Type: GrantFiled: August 28, 2015Date of Patent: February 12, 2019Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Martina Pintani, Ian Johnson, Francesco Di Stasio, Martin Humphries, Jonathan Pillow, Ruth Pegington, James Morey
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Publication number: 20180171076Abstract: A polymer having a backbone of alternating N atoms and aromatic or heteroaromatic groups including a repeating structure of formula (I) wherein: R3 independently in each occurrence is a substituent; m is 0 or a positive integer; Ar1 and Ar2 are an aryl or heteroaryl group and at least one group selected from Ar1 and Ar2 has formula (II) wherein: each x is independently 0 or a positive integer; each y is independently 0 or a positive integer, and R1 and R2 independently in each occurrence is a substituent.Type: ApplicationFiled: November 28, 2014Publication date: June 21, 2018Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Kiran Kamtekar, Ruth Pegington
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Patent number: 9966534Abstract: A copolymer comprising a repeat unit of Formula (I) and at least one further repeat unit: Formula (I) wherein: wherein: Ar1 and Ar2 are each independently selected from aryl and heteroaryl, each of which is independently unsubstituted or substituted with one or more substituents; each R is independently a substituent; each n is independently 0, 1 or 2; each m is independently 0, 1, 2 or 3, and at least one of the repeat units of the polymer is a partially conjugating repeat unit.Type: GrantFiled: December 23, 2013Date of Patent: May 8, 2018Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Philip Stackhouse, Sophie Barbara Heidenhain, Ruth Pegington, Jonathan Pillow, Martin Humphries, Tomoyasu Yoshida
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Publication number: 20180097183Abstract: A polymer comprising one or more optionally substituted repeat units of formula (I): wherein each Ar1 independently represents a substituted or unsubstituted aromatic or heteroaromatic group; each Ar2 independently represents a substituted or unsubstituted aromatic or heteroaromatic group; n and m in each occurrence is at least 1; and R1 and R2 are substituents wherein R1 and R2 are different.Type: ApplicationFiled: November 21, 2017Publication date: April 5, 2018Applicants: Sumimoto Chemical Company Limited, Cambridge Display Technology LimitedInventors: Ruth Pegington, Sophie Barbara Heidenhain, Mary J. McKiernan
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Patent number: 9929347Abstract: A polymer compound is provided having constitutional units of formula (1) and formula (2), and a constitutional unit of formula (3) and/or (4?): wherein Ar1 to Ar4, Ar20, Ar30? and Ar40 represent arylene groups or the like; Ar5 to Ar7 represent aryl groups or the like; Ar8 represents (2+p)-valent aromatic hydrocarbon group or the like; Ar10 represents (2+n)-valent aromatic hydrocarbon group or the like; R1 represents alkyl group or the like; La, Lb, Lg and Lh represent alkylene groups or the like; LA and LD represent oxygen atoms or the like; Q1 represents monovalent crosslinkable group; Q2? to Q4? represent monovalent crosslinkable groups or the like; x, y, c, nA and nD represent 0 or 1; p represents integer of 1 or greater; na and ng represent integer of 0 to 3; nb and nh represent integer of 0 to 12; and n represents integer of 1 to 4.Type: GrantFiled: March 26, 2013Date of Patent: March 27, 2018Assignees: SUMITOMO CHEMICAL COMPANY, LIMTIED, Cambridge Display Teclmology LimitedInventors: Chizu Sekine, Satoshi Mikami, Makoto Anryu, Hidenobu Kakimoto, Annette Regine Steudel, Martin John Humphries, Kiran Timothy Kamtekar, Elena Hojas Garcia, Sophie Heidenhain, Ruth Pegington
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Publication number: 20180078554Abstract: An OLED comprising a hole-transporting layer and light-emitting layer wherein the hole-transporting layer comprises a hole-transporting polymer wherein no more than 5% of the polystyrene equivalent polymer weight measured by gel permeation chromatography consists of chains with weight of less than 50,000.Type: ApplicationFiled: November 21, 2017Publication date: March 22, 2018Applicants: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Ruth Pegington, Martin Humphries