Patents by Inventor Anu Chopra
Anu Chopra 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: 11518751Abstract: A photochromic compound including a core skeletal structure represented by the following Formula (I), wherein D is oxygen or sulfur; E is oxygen, sulfur, or NR2?; a is 0 or 1; R1 is hydrogen, or substituted or unsubstituted alkyl; R2 and R2? are each independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or substituted or unsubstituted heterocycloalkyl; and the photochromic compound is a thermally reversible photochromic compound.Type: GrantFiled: May 28, 2018Date of Patent: December 6, 2022Assignee: Transitions Optical, Ltd.Inventors: Robert W. Walters, Chien-Yang Chiu, Anu Chopra, Darrin R. Dabideen, Sujit Mondal, Nick J. Parise, Wenjing Xiao
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Publication number: 20210395436Abstract: The present invention relates to a photochromic article that includes a substrate and a photochromic layer formed from a curable photochromic composition. The photochromic composition includes a polyol component that includes a polycarbonate diol, an isocyanate component that includes an unblocked polyfunctional isocyanate and/or a blocked polyfunctional isocyanate, and at least one photochromic compound. The equivalents ratio of blocked/unblocked isocyanate equivalents of the isocyanate component to hydroxyl equivalents of the polyol component is at least 5:1. The photochromic article exhibits a T1/2 (Fade Half Life) at 23° C. of less than or equal to 70 seconds.Type: ApplicationFiled: November 7, 2019Publication date: December 23, 2021Inventors: Joseph D. TURPEN, Elizabeth A. ZEZINKA, Emily AMOND, Anu CHOPRA, Michael Frank HALEY, Beon-Kyu KIM, Sujit MONDAL, Nicholas J. PARISE, Brian SHAUGHNESSY, Robert W. WALTERS, Wenjing XIAO, An-Hung YEH
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Publication number: 20210198226Abstract: A photochromic compound including a core skeletal structure represented by the following Formula (I), wherein D is oxygen or sulfur; E is oxygen, sulfur, or NR2?; a is 0 or 1; R1 is hydrogen, or substituted or unsubstituted alkyl; R2 and R2? are each independently selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or substituted or unsubstituted heterocycloalkyl; and the photochromic compound is a thermally reversible photochromic compound.Type: ApplicationFiled: May 28, 2018Publication date: July 1, 2021Inventors: Robert W. Walters, Chien-Yang Chiu, Anu Chopra, Darrin R. Dabideen, Sujit Mondal, Nick J. Parise, Wenjing Xiao
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Patent number: 10493486Abstract: A method of forming a photochromic segmented multifocal lens is described. The method involves, forming a segmented multifocal lens blank by molding, in which the segmented multifocal lens blank has a front surface and a rear surface. The front surface of the segmented multifocal lens blank includes a segmented optical power addition portion. The method further includes, grinding the rear surface of the segmented multifocal lens blank, thereby forming a segmented multifocal finished lens having a front surface and a rear surface. The front surface of the segmented multifocal finished lens includes the segmented optical power addition portion. The method additionally includes, forming a photochromic coating layer over at least a portion of the rear surface of the segmented multifocal finished lens. The photochromic coating layer includes at least one photochromic compound.Type: GrantFiled: November 17, 2014Date of Patent: December 3, 2019Assignee: Transitions Optical, Inc.Inventors: Paul J. Lynch, Frank M. Haley, Anu Chopra
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Patent number: 9465234Abstract: The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.Type: GrantFiled: June 29, 2015Date of Patent: October 11, 2016Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Anu Chopra, Jun Deng, Beon-Kyu Kim, David B. Knowles, Frank F. Molock, Jr., Victor A. Montes, Stephen D. Straight, Wenjing Xiao, Huayun Yu
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Publication number: 20160279886Abstract: A method of forming a photochromic segmented multifocal lens is described. The method involves, forming a segmented multifocal lens blank by molding, in which the segmented multifocal lens blank has a front surface and a rear surface. The front surface of the segmented multifocal lens blank includes a segmented optical power addition portion. The method further includes, grinding the rear surface of the segmented multifocal lens blank, thereby forming a segmented multifocal finished lens having a front surface and a rear surface. The front surface of the segmented multifocal finished lens includes the segmented optical power addition portion. The method additionally includes, forming a photochromic coating layer over at least a portion of the rear surface of the segmented multifocal finished lens. The photochromic coating layer includes at least one photochromic compound.Type: ApplicationFiled: November 17, 2014Publication date: September 29, 2016Inventors: Paul J. Lynch, Frank M. Haley, Anu Chopra
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Publication number: 20150301357Abstract: The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.Type: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Inventors: Anu Chopra, Jun Deng, Beon-Kyu Kim, David B. Knowles, Frank F. Molock, Jr., Victor A. Montes, Stephen D. Straight, Wenjing Xiao, Huayun Yu
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Patent number: 9097916Abstract: The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.Type: GrantFiled: April 22, 2014Date of Patent: August 4, 2015Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Anu Chopra, Jun Deng, Beon-Kyu Kim, David B. Knowles, Frank F. Molock, Jr., Victor A. Montes, Stephen D. Straight, Wenjing Xiao, Huayun Yu
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Patent number: 9073838Abstract: The present invention relates to a method of making indeno-fused naphthol materials, that involves, with some embodiments, forming an indanone acid intermediate, represented by the following general Formula V, With Formula V, m is from 0 to 4, and R1 for each m, Rg and Rh can each be independently selected from, for example, hydrogen and hydrocarbyl.Type: GrantFiled: May 13, 2014Date of Patent: July 7, 2015Assignee: Transitions Optical, Inc.Inventors: Anu Chopra, Barry Van Gemert, Wenjing Xiao, Huayun Yu
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Patent number: 9034219Abstract: Described herein are compounds generally comprising an indeno[2?,3?:3,4]naptho[1,2-b]pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles. Also described herein are methods for preparing certain photochromic compounds, compositions, and articles.Type: GrantFiled: December 7, 2011Date of Patent: May 19, 2015Assignee: Transitions Optical, Inc.Inventors: Meng He, Darrin R. Dabideen, Xiao-Man Dai, Wenjing Xiao, Ruisong Xu, Sujit Mondal, Anil Kumar, Anu Chopra
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Patent number: 9028728Abstract: The present invention relates to photochromic materials that include one or more indeno-fused naphthopyrans that have particular groups at the 7, 11, and 13 positions thereof, and at the position alpha to the oxygen of the pyran ring thereof. With some embodiments, hydrogen or an alkoxy group is bonded to the 7 position, an optionally substituted phenyl is bonded to the 11 position, two alkyl groups are bonded to the 13 position, and two optionally substituted phenyl groups are bonded to the position alpha to the oxygen of the pyran ring of the indeno-fused naphthopyran compound. The 13 position of the indeno-fused naphthopyrans is free of ether groups in which an ether oxygen is bonded to the 13 position, and hydroxyl. The present invention also relates to photochromic articles and compositions that include such indeno-fused naphthopyrans.Type: GrantFiled: December 8, 2011Date of Patent: May 12, 2015Assignee: Transitions Optical, Inc.Inventors: Kevin E. Bancroft, Anu Chopra, Xiao-Man Dai, Beon-Kyu Kim, David B. Knowles, Jason R. Lewis, Victor A. Montes, Stephen D. Straight, Massimiliano Tomasulo, Barry Van Gemert, Robert W. Walters, Wenjing Xiao, Huayun Yu, Elizabeth A. Zezinka
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Patent number: 9006427Abstract: Various photochromic materials are provided that are essentially free of polymerizable unsaturated groups, and comprise: a) an indeno[2?,3?:3,4]naphtho[1,2-b]pyran; and b) an electron-withdrawing, non-conjugating group bonded at the 11-position of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran. Alternative embodiments include various substituents at other positions of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran.Type: GrantFiled: February 7, 2014Date of Patent: April 14, 2015Assignee: Transitions Optical, Inc.Inventors: Anu Chopra, Patrick M. Brown
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Patent number: 8920928Abstract: Described herein are compounds generally comprising an indeno[2?,3?:3,4]naptho[1,2-b]pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles.Type: GrantFiled: December 14, 2011Date of Patent: December 30, 2014Assignee: Transitions Optical, Inc.Inventors: Meng He, Darrin R. Dabideen, Sujit Mondal, Xiao-Man Dai, Ruisong Xu, Wenjing Xiao, Massimiliano Tomasulo, Huayun Yu, Anu Chopra, Anil Kumar
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Publication number: 20140364618Abstract: The present invention relates to a method of making indeno-fused naphthol materials, that involves, with some embodiments, forming an indanone acid intermediate, represented by the following general Formula V, With Formula V, m is from 0 to 4, and R1 for each m, Rg and Rh can each be independently selected from, for example, hydrogen and hydrocarbyl.Type: ApplicationFiled: May 13, 2014Publication date: December 11, 2014Applicant: Transitions Opticals, Inc.Inventors: Anu Chopra, Barry Van Gemert, Wenjing Xiao, Huayun Yu
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Patent number: 8859097Abstract: The present invention provides a compound represented by the Formula I: wherein substituents R16 and R17? are each independently selected from an electron withdrawing group have a Hammett ?p value of from 0.05 to 0.85 and R17 is hydrogen.Type: GrantFiled: October 5, 2011Date of Patent: October 14, 2014Assignee: Transitions Optical, Inc.Inventor: Anu Chopra
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Patent number: 8815771Abstract: A mechanochromic coating composition is disclosed comprising a polymeric network incorporating a plurality of ring-opening mechanophores each bound at two positions thereof within said polymeric network.Type: GrantFiled: April 16, 2012Date of Patent: August 26, 2014Assignee: PPG Industries Ohio, Inc.Inventors: Anu Chopra, Jun Deng, Charles R. Hickenboth, Robin M. Peffer
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Publication number: 20140225049Abstract: The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.Type: ApplicationFiled: April 22, 2014Publication date: August 14, 2014Applicant: Johnson & Johnson Vision Care, Inc.Inventors: Anu Chopra, Jun Deng, Beon-Kyu Kim, David B. Knowles, Frank F. Molock, JR., Victor A. Montes, Stephen D. Straight, Wenjing Xiao, Huayun Yu
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Patent number: 8765978Abstract: The present invention relates to a method of making indeno-fused naphthol materials, that involves, with some embodiments, forming an indanone acid intermediate, which can be represented by the following general Formula V, With Formula V, m is from 0 to 4, and R1 for each m, Rg and Rh can each be independently selected from, for example, hydrogen and hydrocarbyl. The present invention also relates to a method of making an indeno-fused naphthopyran that involves an indanone acid intermediate synthetic route.Type: GrantFiled: December 13, 2011Date of Patent: July 1, 2014Assignee: Transitions Optical, Inc.Inventors: Anu Chopra, Barry Van Gemert, Wenjing Xiao, Huayun Yu
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Patent number: 8748634Abstract: Various photochromic materials are provided that are essentially free of polymerizable unsaturated groups, and comprise: a) an indeno[2?,3?:3,4]naphtho[1,2-b]pyran; and b) an electron-withdrawing, non-conjugating group bonded at the 11-position of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran. Alternative embodiments include various substituents at other positions of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran. Also provided are photochromic articles including a substrate and one of the above photochromic materials, in contact with at least a portion of the substrate.Type: GrantFiled: September 25, 2007Date of Patent: June 10, 2014Assignee: Transitions Optical, Inc.Inventors: Anu Chopra, Patrick M. Brown
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Publication number: 20140155598Abstract: Various photochromic materials are provided that are essentially free of polymerizable unsaturated groups, and comprise: a) an indeno[2?,3?:3,4]naphtho[1,2-b]pyran; and b) an electron-withdrawing, non-conjugating group bonded at the 11-position of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran. Alternative embodiments include various substituents at other positions of the indeno[2?,3?:3,4]naphtho[1,2-b]pyran.Type: ApplicationFiled: February 7, 2014Publication date: June 5, 2014Applicant: TRANSITIONS OPTICAL, INC.Inventors: Anu Chopra, Patrick M. Brown