Patents by Inventor Mary J. McKiernan
Mary J. McKiernan 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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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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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: 9859499Abstract: A polymer comprising one or more optionally substituted repeat units of formula (I): (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: January 16, 2013Date of Patent: January 2, 2018Assignees: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Ruth Pegington, Sophie Barbara Heidenhain, Mary J. McKiernan
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Patent number: 8945432Abstract: A conductive polymer composition comprising a conductive polymer in a solid polyelectrolyte.Type: GrantFiled: December 23, 2005Date of Patent: February 3, 2015Assignees: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Andrew Bruce Holmes, Mary J. McKiernan, Caroline Towns
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Publication number: 20140353652Abstract: A polymer comprising one or more optionally substituted repeat units of formula (I): (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: January 16, 2013Publication date: December 4, 2014Inventors: Ruth Pegington, Sophie Barbara Heidenhain, Mary J. McKiernan
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Patent number: 8878163Abstract: An organic light-emitting device comprising an anode; a hole transport layer; a light-emitting layer; and a cathode, characterized in that the hole transport layer comprises a polymer having a repeat unit comprising a 9,9 biphenyl fluorene unit wherein the 9-phenyl rings are independently and optionally substituted and the fluorene unit is optionally fused.Type: GrantFiled: November 18, 2008Date of Patent: November 4, 2014Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Co., Ltd.Inventors: Natasha M. Conway, Mary J. McKiernan, Brian Tierney
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Patent number: 8569752Abstract: A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.Type: GrantFiled: April 30, 2012Date of Patent: October 29, 2013Assignees: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Mary J. McKiernan, Annette Steudel, Caroline Towns
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Patent number: 8502199Abstract: A semiconductive conjugated polymer comprising a first repeat unit comprising general formula I: where Ar1, Ar3, and Ar5 are the same or different and wherein each represents an optionally substituted aryl or heteroaryl group; Ar2 and Ar4 are the same or different and each represent a substituted aryl or heteroaryl group; and Ar2 and Ar4 sterically interact with one another so as to cause an increase in the bandgap of the polymer.Type: GrantFiled: December 23, 2005Date of Patent: August 6, 2013Assignees: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Brian Tierney, Mark Leadbeater, Nalinkumar Patel, Clare L. Foden, Natasha M. Conway, Mary J. McKiernan
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Patent number: 8410242Abstract: A pulsed driven display comprising an organic light-emitting device, said device comprising an organic layer comprising a semiconductive polymer, said polymer comprising a fluorene or triarylamine repeat unit, the fluorene or triarylamine repeat unit having a group R pendent from the polymer backbone, wherein R has general formula I: where Ar1 represents phenyl or a group comprising napthyl; Ar2 represents phenyl or a group comprising napthyl; R? represents a substituent group; R?=H or a substituent; n=0, 1, 2 or 3; m=0 or 1; and n?=1 or 2, with the proviso that m=0 if n=0.Type: GrantFiled: April 13, 2006Date of Patent: April 2, 2013Assignees: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Valerie Grand, Richard Wilson, Mark Dowling, Ilaria Grizzi, Mary J. McKiernan
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Patent number: 8308987Abstract: A conductive composition for use in an organic light-emitting device comprising: a polycation having a conjugated backbone; a polyanion to balance the charge on the polycation; and a semiconductive hole transport polymer containing side groups pendant from the polymer backbone, each side group comprising one or more groups XY, where XY represents a group with a high dissociation constant such that it is ionized completely.Type: GrantFiled: July 14, 2006Date of Patent: November 13, 2012Assignees: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Mary J. McKiernan, Jeremy Burroughes, Annette Steudel
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Publication number: 20120217490Abstract: A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.Type: ApplicationFiled: April 30, 2012Publication date: August 30, 2012Applicants: CDT OXFORD LIMITED, CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventors: Carl R. Towns, Caroline Towns, Mary J. McKiernan, Annette Steudel
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Patent number: 8173996Abstract: A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.Type: GrantFiled: October 11, 2005Date of Patent: May 8, 2012Assignees: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Carl R. Towns, Caroline Towns, legal representative, Mary J. McKiernan, Annette Steudel
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Publication number: 20100276674Abstract: An organic light-emitting device comprising an anode; a hole transport layer; a light-emitting layer; and a cathode, characterised in that the hole transport layer comprises a polymer having a repeat unit comprising a 9,9 biphenyl fluorene unit wherein the 9-phenyl rings are independently and optionally substituted and the fluorene unit is optionally fused.Type: ApplicationFiled: November 18, 2008Publication date: November 4, 2010Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, SUMATION CO., LIMITEDInventors: Natasha M. Conway, Mary J. McKiernan, Brian Tierney
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Publication number: 20090203876Abstract: A pulsed driven display comprising an organic light-emitting device, said device comprising an organic layer comprising a semiconductive polymer, said polymer comprising a fluorene or triarylamine repeat unit, the fluorene or triarylamine repeat unit having a group R pendent from the polymer backbone, wherein R has general formula I: where Ar1 represents phenyl or a group comprising napthyl; Ar2 represents phenyl or a group comprising napthyl; R? represents a substituent group; R??H or a substituent; n=0, 1, 2 or 3; m=0 or 1; and n?=1 or 2, with the proviso that m=0 if n=0.Type: ApplicationFiled: April 13, 2006Publication date: August 13, 2009Applicants: Cambridge Display Technologh Limited, CDT Oxford LimitedInventors: Valerie Grand, Richard Wilson, Mark Dowling, Ilaria Grizzi, Mary J. McKiernan
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Publication number: 20090152531Abstract: A semiconductive hole transport material containing polar substituent groups, the polar substituent groups substantially not affecting the electronic properties of the hole transport material and the hole transport material being soluble in a polar solvent.Type: ApplicationFiled: October 11, 2005Publication date: June 18, 2009Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LTD, CDT OXFORD LTD.Inventors: Carl R. Towns, Caroline Towns, Mary J. McKiernan, Annette Steudel
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Publication number: 20090146164Abstract: A semiconductive conjugated polymer comprising a first repeat unit comprising general formula I: where Arl, Ar3, and Ar5 are the same or different and wherein each represents an optionally substituted aryl or heteroaryl group; Ar2 and Ar4 are the same or different and each represent a substituted aryl or heteroaryl group; and Ar2 and Ar4 sterically interact with one another so as to cause an increase in the bandgap of the polymer.Type: ApplicationFiled: December 23, 2005Publication date: June 11, 2009Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventors: Brian Tierney, Mark Leadbeater, Nalinkumar Patel, Clare L. Foden, Natasha M. Conway, Mary J. McKiernan
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Publication number: 20080265756Abstract: A conductive composition for use in an organic light-emitting device comprising: a polycation having a conjugated backbone; a polyanion to balance the charge on the polycation; and a semiconductive hole transport polymer containing side groups pendant from the polymer backbone, each side group comprising one or more groups XY, where XY represents a group with a high dissociation constant such that it is ionized completely.Type: ApplicationFiled: July 14, 2006Publication date: October 30, 2008Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, CDT OXFORD LIMITEDInventors: Mary J. McKiernan, Jeremy Burroughes, Annette Steudel