Patents by Inventor Anju Parthasarathy
Anju Parthasarathy 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: 20130171217Abstract: Disclosed herein are compositions and methods to treat skin with a peracid-based benefit agent. The peracid benefit agent can be used for a benefit such as the prevention or treatment of acne, skin whitening, skin bleaching, skin conditioning, reducing the appearance of skin wrinkles, skin rejuvenation, reducing dermal adhesions, and preventing, reducing or eliminating body odors or any combination thereof. The peracid may be enzymatically generated from a carboxylic acid ester substrate using an enzyme having perhydrolytic activity (perhydrolase) in the presence of a source of peroxygen. A fusion protein comprising the perhydrolase coupled to a skin-binding domain, either directly or through an optional linker, may be used to target the perhydrolytic activity to the skin surface.Type: ApplicationFiled: June 14, 2012Publication date: July 4, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: DEXTER A. CHISHOLM, MARK S. PAYNE, PIERRE E. ROUVIERE, HONG WANG, SCOTT D. CUNNINGHAM, ROBERT DICOSIMO, KARI A. FOSSER, TANJA MARIA GRUBER, XUEPING JIANG, ANJU PARTHASARATHY
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Publication number: 20120317733Abstract: Disclosed herein are compositions and methods to treat hair with a peracid-based benefit agent. The peracid benefit agent can be used for hair bleaching, hair weakening, hair removal, hair waiving, hair straightening or any combination thereof. The peracid may be enzymatically generated from a carboxylic acid ester substrate using an enzyme having perhydrolytic activity (perhydrolase) in the presence of a source of peroxygen. A fusion protein comprising the perhydrolase coupled to a hair-binding domain, either directly or through an optional linker, may be used to target the perhydrolytic activity to the hair surface.Type: ApplicationFiled: December 19, 2011Publication date: December 20, 2012Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Dexter A. Chisholm, Xiumin Cui, Scott D. Cunningham, Robert DiCosimo, Stephen R. Fahnestock, Tanja Maria Gruber, Yongqing Huang, Xueping Jiang, Anju Parthasarathy, Mark S. Payne, Pierre E. Rouviere, Hong Wang
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Publication number: 20100158822Abstract: Peptides having strong affinity for silica as well as surfaces comprising silica are described. The silica-binding peptides may be used to construct peptide based-reagents suitable for delivery of a silica-coated particulate benefit agent to a surface, such as body surface, for personal care and cosmetic applications. Peptide-based reagents formed by coupling at least one of the silica-binding peptides to at least one body surface-binding peptide, either directly or through a spacer, are described. The peptide-based reagents may be used in conjunction with at least one silica-coated colorant to color body surfaces.Type: ApplicationFiled: December 8, 2009Publication date: June 24, 2010Applicant: E .I. DU PONT DE NEMOURS AND COMPANYInventors: STEPHEN R. FAHNESTOCK, KARI A. FOSSER, ANJU PARTHASARATHY, HONG WANG
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Publication number: 20100158837Abstract: Peptides having strong affinity for iron oxide pigment particles have been identified. Peptide-based reagents comprising at least one of the present iron oxide-based pigment-binding peptides and at least one body surface-binding peptide are described. The peptide-based reagents may be used in conjunction with at least one iron oxide-based pigment to color body surfaces.Type: ApplicationFiled: December 8, 2009Publication date: June 24, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: STEPHEN R. FAHNESTOCK, Kristy N. Kostichka, Anju Parthasarathy, Hong Wang
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Patent number: 6699545Abstract: This invention concerns a method for increasing the polymerization rate of polyester polymers in the solid state by adding a catalytic amount of zinc p-toluenesulfonate to a polyester polymer melt that is essentially free of antimony and germanium, before solid state polymerization.Type: GrantFiled: April 22, 2002Date of Patent: March 2, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Anju Parthasarathy
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Publication number: 20030171508Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: ApplicationFiled: June 22, 2001Publication date: September 11, 2003Inventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 6613915Abstract: Selected olefins such as ethylene and &agr;-olefins are polymerized by nickel [II] complexes of certain monoanionic ligands. The polyolefins are useful in many applications such as molding resins, film, fibers and others. Also described are many novel nickel compounds and their precursors, as well a novel ligands.Type: GrantFiled: October 13, 1999Date of Patent: September 2, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Lynda Kaye Johnson, Alison Margaret Anne Bennett, Lin Wang, Anju Parthasarathy, Elisabeth Hauptman, Robert D. Simpson, Jerald Feldman, Edward Bryan Coughlin, Steven Dale Ittel
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Publication number: 20030139566Abstract: This invention concerns a method for increasing the polymerization rate of polyester polymers in the solid state by adding a catalytic amount of zinc p-toluenesulfonate to a polyester polymer melt that is essentially free of antimony and germanium, before solid state polymerization.Type: ApplicationFiled: April 22, 2002Publication date: July 24, 2003Inventor: Anju Parthasarathy
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Patent number: 6310163Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: GrantFiled: July 10, 1997Date of Patent: October 30, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 6225391Abstract: The present invention concerns compounds of Formula I R24-zSi[(Q)xA(CH2)yH]z or of Formula II [H(CH2)yA(Q)x]bSiR13-bSiR13-b[(Q)xA(CH2)yH]b, wherein Q is OCH2CH2, OCH2CHCH2, or any combination of one or more units of OCH2CH2 and OCH2CHCH2; A is O, OC6H4, S, NH, NR, O—C(O)—; R is alkyl, aryl, or alkaryl; x is greater than 2 and less than 100;y is greater than 0; except when A═OC6H4, then y is greater than or equal to 0; z is 1 to 4; and each R2 is independently selected from the group consisting of alkyl, aryl and alkaryl; B is O, C6H4, —(CH2)q—, and hydrocarbylene; q is greater than 1 and less than 30; b is 1 to 3; and each R1 is independently selected from the group consisting of alkyl, aryl, and alkaryl, used as nonvolatile in situ precursors to anti-fog agents for packaging films and a novel process of making such films.Type: GrantFiled: February 11, 2000Date of Patent: May 1, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Anju Parthasarathy, Steven Dale Ittel
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Patent number: 6174975Abstract: Selected olefins such as ethylene and &agr;-olefins are polymerized by nickel [II] complexes of certain monoanionic ligands. The polyolefins are useful in many applications such as molding resins, film, fibers and others. Also described are many novel nickel compounds and their precursors, as well a novel ligands.Type: GrantFiled: January 13, 1998Date of Patent: January 16, 2001Assignee: E.I. du Pont de Nemours and CompanyInventors: Lynda Kaye Johnson, Alison Margaret Anne Bennett, Lin Wang, Anju Parthasarathy, Elisabeth Hauptman, Robert D. Simpson, Jerald Feldman, Edward Bryan Coughlin, Steven Dale Ittel
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Patent number: 6103920Abstract: Disclosed herein is a process for the polymerization of ethylene, norbornenes and styrenes, by contacting in solution a selected nickel compound and a selected compound which is or can coordinated to the nickel with the olefin(s). The polymers produced are useful for films and molding resins.Type: GrantFiled: July 23, 1997Date of Patent: August 15, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Lynda Kaye Johnson, Jerald Feldman, Kristina Ann Kreutzer, Stephan James Mclain, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Dennis Scott Donald, Lissa Taka Jennings Nelson, Anju Parthasarathy, Xing Shen, Wilson Tam, Yueli Wang
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Patent number: 6034259Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.Type: GrantFiled: July 10, 1997Date of Patent: March 7, 2000Assignees: E. I. du Pont de Nemours and Company, University of North Carolina Chapel HillInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 5886224Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.Type: GrantFiled: July 10, 1997Date of Patent: March 23, 1999Assignees: E. I. du Pont de Nemours and Company, University of North CarolinaInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Samuel David Arthur, Jerald Feldman, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 5866663Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear .alpha.-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected .alpha.-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected .alpha.Type: GrantFiled: July 10, 1997Date of Patent: February 2, 1999Assignees: E. I. du Pont de Nemours and Company, University of North CarolinaInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Lin Wang, Zhen-Yu Yang
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Patent number: 5849693Abstract: This invention relates to novel cyclic compounds linked by a heterocyclic ring system, which are useful as antagonists of the platelet glycoprotein IIb/IIIa complex, to pharmaceutical compositions containing such cyclic compounds, and to methods of using these compounds for the inhibition of platelet aggregation.Type: GrantFiled: March 12, 1997Date of Patent: December 15, 1998Assignee: The DuPont Merck Pharmaceutical CompanyInventors: Gregory James Wells, John Wityak, Anju Parthasarathy, William Frank DeGrado, Sharon Anne Jackson, Shaker Ahmed Mousa
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Patent number: 5773411Abstract: This invention relates to novel cyclic compounds linked by a heterocyclic ring system, which are useful as antagonists of the platelet glycoprotein IIb/IIIa complex, to pharmaceutical compositions containing such cyclic compounds, and to methods of using these compounds for the inhibition of platelet aggregation. A representative compound of the invention is cyclo-(D-Val-N(Me)Arg-Gly-Asp-?5-aminomethyl!-2-furoate).Type: GrantFiled: November 14, 1994Date of Patent: June 30, 1998Assignee: The DuPont Merck Pharmaceutical CompanyInventors: Gregory James Wells, John Wityak, Anju Parthasarathy, William Frank DeGrado, Sharon Anne Jackson, Shaker Ahmed Mousa
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Patent number: 5714556Abstract: Disclosed herein is a process for the polymerization of ethylene, norbornenes and styrenes, by contacting in solution a selected nickel compound and a selected compound which is or can coordinated to the nickel with the olefin(s). The polymers produced are useful for films and molding resins.Type: GrantFiled: June 27, 1996Date of Patent: February 3, 1998Assignee: E. I. DuPont de Nemours and CompanyInventors: Lynda Kaye Johnson, Jerald Feldman, Kristina Ann Kreutzer, Stephan James McLain, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Dennis Scott Donald, Lissa Taka Jennings Nelson, Anju Parthasarathy, Xing Shen, Wilson Tam, Yueli Wang
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Patent number: 5635477Abstract: This invention relates to novel cyclic compounds containing carbocyclic ring systems useful as antagonists of the platelet glycoprotein IIb/IIIa complex, to pharmaceutical compositions containing such cyclic compounds, with or without other therapeutic agents, and to methods of using these compounds, with or without other therapeutic agents, for the inhibition of platelet aggregation, as thrombolytics, and/or for the treatment of other thromboembolic disorders. This invention also relates to methods of using the cyclic compounds of the invention in combination with anti-coagulants such as warfarin or heparin, or additional anti-platelet agents such as aspirin, piroxicam or ticlopidine, or thrombin inhibitors such as boropeptides, hirudin or argatroban, or thrombolytic agents such as tissue plasminogen activator, anistreplase, urokinase or streptokinase, or combinations thereof, for the treatment of thromboembolic disorders. A representative compound of the invention is cyclo(D-Val-(.sup..alpha.Type: GrantFiled: June 5, 1995Date of Patent: June 3, 1997Assignee: The DuPont Merck Pharmaceutical CompanyInventors: William F. Degrado, Sharon A. Jackson, Shaker A. Mousa, Anju Parthasarathy, Michael Sworin, Maria Rafalski