Patents by Inventor Robert J. Wiacek
Robert J. Wiacek 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: 12215039Abstract: The preparation of monodispersed TiO2 nanocrystals with nanocrystal size between 1-30 nm is described herein. These TiO2 nanocrystals are used to prepare dispersions into solvents, formulation into monomers, oligomers, and polymers, and nanocomposites from the resulting formulations. Dispersions of nanocrystals can be formed in various solvents at high loading, high transmittance, and low viscosity. Formulations incorporating these nanocrystals and a matrix material are highly stable, where the resulting nanocomposites have high refractive index and are optically transparent in the visible wavelengths, with very little or no scattering.Type: GrantFiled: November 20, 2019Date of Patent: February 4, 2025Assignee: PT SPE SUBCO LLCInventors: Jason Allen Repac, Serpil Gonen Williams, Selina Thomas Monickam, Robert J. Wiacek
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Publication number: 20250033988Abstract: Preparation of capped metal oxide nanocrystals comprising a metal oxide shell that are photocatalytically and thermally stable and their dispersions in monomers, oligomers, and polymers, as well as the resulting formulations and nanocomposite films. These nanocrystals are highly monodisperse with nanocrystal size between 3-100 n. Resultant formulations incorporating these nanocrystals and a matrix material are highly stable and result in nanocomposites that have high refractive index, are highly transparent, have minimal to no change in absorption upon thermal or UV processing and are optically transparent in the visible wavelengths with very little or no scattering.Type: ApplicationFiled: December 20, 2022Publication date: January 30, 2025Inventors: Robert J. WIACEK, Selina Thomas MONICKAM, Mohammad Sadegh YAZDANPARAST, Brian SZYCHOWSKI, Guoyi FU, Peter Christopher GUSCHL, Grace E.M. MCCLINTOCK, Lei ZHENG, Zehra Serpil Gonen WILLIAMS, Mohammadreza AMIRMOSHIRI, Nicole Joud TADROS
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Publication number: 20220017381Abstract: The preparation of monodispersed TiO2 nanocrystals with nanocrystal size between 1-30 nm is described herein. These TiO2 nanocrystals are used to prepare dispersions into solvents, formulation into monomers, oligomers, and polymers, and nanocomposites from the resulting formulations. Dispersions of nanocrystals can be formed in various solvents at high loading, high transmittance, and low viscosity. Formulations incorporating these nanocrystals and a matrix material are highly stable, where the resulting nanocomposites have high refractive index and are optically transparent in the visible wavelengths, with very little or no scattering.Type: ApplicationFiled: November 20, 2019Publication date: January 20, 2022Inventors: Jason Allen REPAC, Serpil Gonen WILLIAMS, Selina Thomas MONICKAM, Robert J. WIACEK
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Patent number: 10753012Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: GrantFiled: October 27, 2016Date of Patent: August 25, 2020Assignee: PIXELLIGENT TECHNOLOGIES, LLCInventors: Wei Xu, Zehra Serpil Gonen Williams, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Jun Xu
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Patent number: 10487243Abstract: The present invention relates to a formulation suitable for the preparation of a highly refractive encapsulation material with good barrier properties towards water vapor for an LED, to an encapsulation material for an LED having a high refractive index and good barrier properties towards water vapor which is obtainable from said formulation and to a light emitting device (LED) comprising said encapsulation material. The formulation comprises a polymer comprising a first repeating unit M1 and a second repeating unit M2; and a surface-modified zirconium dioxide nanocrystal.Type: GrantFiled: July 14, 2017Date of Patent: November 26, 2019Assignee: AZ Electronic Materials (Luxembourg) S.a.r.l.Inventors: Ralf Grottenmueller, Abraham Casas Garcia-Minguillan, Fumio Kita, Dieter Wagner, Robert J. Wiacek, Daniel P. Russell, Zehra Serpil Gonen Williams
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Publication number: 20190300748Abstract: The present invention relates to a formulation suitable for the preparation of a highly refractive encapsulation material with good barrier properties towards water vapor for an LED, to an encapsulation material for an LED having a high refractive index and good barrier properties towards water vapor which is obtainable from said formulation and to a light emitting device (LED) comprising said encapsulation material. The formulation comprises a polymer comprising a first repeating unit M1 and a second repeating unit M2; and a surface-modified zirconium dioxide nanocrystal.Type: ApplicationFiled: July 14, 2017Publication date: October 3, 2019Inventors: RALF GROTTENMUELLER, Abraham CASAS GARCIA-MINGUILLAN, Fumio KITA, Dieter WAGNER, Robert J. WIACEK, Daniel P. RUSSELL, Zehra Serpil Gonen WILLIAMS
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Publication number: 20180023212Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: ApplicationFiled: September 12, 2017Publication date: January 25, 2018Inventors: Zehra Serpil GONEN WILLIAMS, Yijun WANG, Robert J. WIACEK, Xia BAI, Linfeng GOU, Selina I. THOMAS, Wei XU, Jun XU, Rakesh PATEL
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Patent number: 9856581Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: GrantFiled: March 21, 2016Date of Patent: January 2, 2018Assignee: PIXELLIGENT TECHNOLOGIES, LLCInventors: Zehra Serpil Gonen Williams, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Wei Xu, Jun Xu, Rakesh Patel
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Patent number: 9617657Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: GrantFiled: November 24, 2014Date of Patent: April 11, 2017Assignee: PIXELLIGENT TECHNOLOGIES, LLCInventors: Wei Xu, Zehra Serpil Gonen Williams, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Jun Xu
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Publication number: 20170044687Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: ApplicationFiled: October 27, 2016Publication date: February 16, 2017Inventors: Wei XU, Zehra Serpil GONEN WILLIAMS, Yijun WANG, Robert J. WIACEK, Xia BAI, Linfeng GOU, Selina I. THOMAS, Jun XU
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Publication number: 20160203981Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: ApplicationFiled: March 21, 2016Publication date: July 14, 2016Inventors: Zehra Serpil GONEN WILLIAMS, Yijun WANG, Robert J. WIACEK, Xia BAI, Linfeng GOU, Selina I. THOMAS, Wei XU, Jun XU, Rakesh PATEL
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Patent number: 9359689Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: GrantFiled: October 26, 2012Date of Patent: June 7, 2016Assignee: PIXELLIGENT TECHNOLOGIES, LLCInventors: Wei Xu, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Zehra Serpil Gonen Williams, Jun Xu, Rakesh Patel
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Patent number: 9328432Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: GrantFiled: June 20, 2014Date of Patent: May 3, 2016Assignee: PIXELLIGENT TECHNOLOGIES, LLCInventors: Zehra Serpil Gonen Williams, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Wei Xu, Jun Xu, Rakesh Patel
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Patent number: 9202688Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: GrantFiled: June 20, 2014Date of Patent: December 1, 2015Assignee: PIXELLIGENT TECHNOLOGIES, LLCInventors: Zehra Serpil Gonen Williams, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Wei Xu, Jun Xu, Rakesh Patel
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Publication number: 20150203989Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: ApplicationFiled: November 24, 2014Publication date: July 23, 2015Inventors: Wei XU, Zehra Serpil GONEN WILLIAMS, Yijun WANG, Robert J. WIACEK, Xia BAI, Linfeng GOU, Selina I. THOMAS, Jun XU
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Patent number: 8920675Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: GrantFiled: October 26, 2011Date of Patent: December 30, 2014Assignee: Pixelligent Technologies, LLCInventors: Wei Xu, Zehra Serpil Gonen Williams, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Jun Xu
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Patent number: 8883903Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: GrantFiled: October 16, 2013Date of Patent: November 11, 2014Assignee: Pixelligent Technologies, LLCInventors: Zehra Serpil Gonen Williams, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Wei Xu, Jun Xu, Rakesh Patel
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Publication number: 20140295649Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: ApplicationFiled: June 20, 2014Publication date: October 2, 2014Applicant: PIXELLIGENT TECHNOLOGIES, LLCInventors: Zehra Serpil GONEN WILLIAMS, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Wei Xu, Jun Xu, Rakesh Patel
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Publication number: 20140045323Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: ApplicationFiled: October 16, 2013Publication date: February 13, 2014Inventors: Zehra Serpil GONEN WILLIAMS, Yijun WANG, Robert J. WIACEK, Xia BAI, Linfeng GOU, Selina I. THOMAS, Wei XU, Jun XU, Rakesh PATEL
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Patent number: 8592511Abstract: Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.Type: GrantFiled: April 25, 2011Date of Patent: November 26, 2013Assignee: Pixelligent Technologies, LLCInventors: Zehra Serpil Gonen Williams, Yijun Wang, Robert J. Wiacek, Xia Bai, Linfeng Gou, Selina I. Thomas, Wei Xu, Jun Xu, Rakesh Patel