Patents by Inventor Virinder Singh Parmar

Virinder Singh Parmar 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).

  • Publication number: 20120100583
    Abstract: The invention relates to new methods of enzymatic synthesis of polymers such as polyorganosilicones and polyesters, and new polymers made by these methods.
    Type: Application
    Filed: May 24, 2011
    Publication date: April 26, 2012
    Applicant: UNIVERSITY OF MASSACHUSETTS
    Inventors: Rajesh Kumar, Arthur C. Watterson, Virinder Singh Parmar, Jayant Kumar, Lynne Ann Samuelson
  • Publication number: 20110201634
    Abstract: The present invention relates to a dihydropyrimidinone compound of formula (I) wherein X represents O, S, etc. and R? represents alkyl, alkoxy, thioalkyl, thioalkyloxy, phenyl, substituted phenyl, phenyloxy, substituted phenyloxy, amino, monosubstitutedamino, disubstitutedamino, aryl, heteroaryl, aryloxy, heteroaryloxy, halo; R? represents alkoxy, phenyloxy, substituted phenyloxy, aryloxy, heteroaryloxy, halo, NR1R2 and Rn represents OR1, NH2, SR1, NR1R2; R1, R2=H, alkyl, phenyl, aryl, OCOR3, SCOR3, NHCOR3, NR1COR3; R3 represents alkyl, phenyl, aryl, heteroaryl.
    Type: Application
    Filed: June 15, 2009
    Publication date: August 18, 2011
    Applicants: DELHI UNIVERSITY, VALLABHBHAI PATEL CHEST INSTITUTE
    Inventors: Virinder Singh Parmar, Hanumanthrao Guru Raj, Ashok Kumar Prasad
  • Publication number: 20100310647
    Abstract: The invention relates to new methods of enzymatic synthesis of polymers such as polyorganosilicones and polyesters, and new polymers made by these methods.
    Type: Application
    Filed: May 5, 2010
    Publication date: December 9, 2010
    Applicant: UNIVERSITY OF MASSACHUSETTS
    Inventors: Rajesh Kumar, Arthur C. Watterson, Virinder Singh Parmar, Jayant Kumar, Lynne Ann Samuelson
  • Patent number: 7754267
    Abstract: Antioxidant polymers of the present invention comprise repeat units that include one or both of Structural Formulas (I) and (II): wherein: R is —H or a substituted or unsubstituted alkyl, acyl or aryl group; Ring A is substituted with at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Ring B is substituted with at least one —H and at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Rings A and B are each optionally substituted with one or more groups selected from the group consisting of —OH, —NH, —SH, a substituted or unsubstituted alkyl or aryl group, and a substituted or unsubstituted alkoxycarbonyl group; n is an integer equal to or greater than 2; and p is an integer equal to or greater than 0. The invention also includes methods of using and preparing these polymers.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: July 13, 2010
    Assignees: The United States of America as represented by the Secretary of the Army, University of Massachusetts Lowell
    Inventors: Ashok L. Cholli, Vijayendra Kumar, Javant Kumar, Virinder Singh Parmar, Lynne Ann Samuelson, Ferdinando F. Bruno
  • Patent number: 7727571
    Abstract: Antioxidant polymers of the present invention comprise repeat units that include one or both of Structural Formulas (I) and (II): wherein: R is —H or a substituted or unsubstituted alkyl, acyl or aryl group; Ring A is substituted with at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Ring B is substituted with at least one —H and at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Rings A and B are each optionally substituted with one or more groups selected from the group consisting of —OH, —NH, —SH, a substituted or unsubstituted alkyl or aryl group, and a substituted or unsubstituted alkoxycarbonyl group; n is an integer equal to or greater than 2; and p is an integer equal to or greater than 0. The invention also includes methods of using and preparing these polymers.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: June 1, 2010
    Assignees: University of Massachusetts Lowell, The United States of America as represented by the Secretary of the Army
    Inventors: Ashok L. Cholli, Vijayendra Kumar, Javant Kumar, Virinder Singh Parmar, Lynne Ann Samuelson, Ferdinando F. Bruno
  • Patent number: 7601378
    Abstract: The following is an examiner's statement of reasons for allowance: an antioxidant polymer and method of preparing, the antioxidant comprising repeat units that include one or both of Structural Formulas (I) and (II) wherein R is —H or a substituted or unsubstituted alkyl, acyl or aryl group; Ring A is substituted with at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Ring B is substituted with at least one —H and at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group is not taught nor fairly suggested by the prior art or any combination thereof.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: October 13, 2009
    Assignees: University of Massachusetts Lowell, The United States of America as represented by the Secretary of the Army
    Inventors: Ashok L. Cholli, Vijayendra Kumar, Jayant Kumar, Virinder Singh Parmar, Lynne Ann Samuelson, Ferdinando F. Bruno
  • Patent number: 7595074
    Abstract: A method of preparing a phenolic polymer comprising: a) protecting at least one hydroxyl group of a substituted or unsubstituted phenol represented by Structural Formula (XXIX), wherein: R11, R12, R13, R14 and R15 are independently —H, —OH, —NH, —SH, a substituted or unsubstituted alkyl or aryl group, a substituted or unsubstituted alkoxycarbonyl or aryloxycarbonyl group, a substituted or unsubstituted alkoxy group or a saturated or unsaturated carboxylic acid group; or R11, R12, R13, R14 or R15, in conjunction with an adjacent R11, R12, R13, R14 or R15, forms a substituted or unsubstituted alkylene dioxy group; provided that at least one of R11, R12, R13, R14 or R15 is a tert-butyl group 1-ethenyl-2-carboxylic acid or ester thereof, a substituted or unsubstituted alkylene dioxy group or a substituted or unsubstituted n-alkoxycarbonyl group, at least one of R11, R12, R13, R14 or R15 is a hydroxyl group, and at least one of R11, R12, R13, R14 and R15 is —H; with a protecting group, wherein thereby obtaining on
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: September 29, 2009
    Assignees: University of Massachusetts Lowell, The United States of America as represented by the Secretary of the Army
    Inventors: Ashok L. Cholli, Vijayendra Kumar, Ashish Dhawan, Jayant Kumar, Virinder Singh Parmar, Lynne Ann Samuelson, Ferdinando F. Bruno
  • Publication number: 20090099267
    Abstract: Polymers having a main chain having both aromatic units and aliphatic units (with repeating heteroatoms) and a side chain macromonomer are described. Methods of making these polymers using enzymatic synthesis and the applications of these polymers are also described.
    Type: Application
    Filed: May 26, 2006
    Publication date: April 16, 2009
    Applicant: University of Massachusetts
    Inventors: Rajesh Kumar, Jayant Kumar, Virinder Singh Parmar, Arthur C. Watterson
  • Patent number: 7507454
    Abstract: Antioxidant polymers of the present invention comprise repeat units that include one or both of Structural Formulas (I) and (II): wherein: R is —H or a substituted or unsubstituted alkyl, acyl or aryl group; Ring A is substituted with at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Ring B is substituted with at least one —H and at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Rings A and B are each optionally substituted with one or more groups selected from the group consisting of —OH, —NH, —SH, a substituted or unsubstituted alkyl or aryl group, and a substituted or unsubstituted alkoxycarbonyl group; n is an integer equal to or greater than 2; and p is an integer equal to or greater than 0. The invention also includes methods of using and preparing these polymers.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: March 24, 2009
    Assignees: University of Massachusetts Lowell, United States of America as represented by the Secretary of the Army
    Inventors: Ashok L. Cholli, Vijayendra Kumar, Jayant Kumar, Virinder Singh Parmar, Lynne Ann Samuelson, Ferdinando F. Bruno
  • Patent number: 7223432
    Abstract: Antioxidant polymers of the present invention comprise repeat units that include one or both of Structural Formulas (I) and (II): wherein: R is —H or a substituted or unsubstituted alkyl, acyl or aryl group; Ring A is substituted with at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Ring B is substituted with at least one —H and at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Rings A and B are each optionally substituted with one or more groups selected from the group consisting of —OH, —NH, —SH, a substituted or unsubstituted alkyl or aryl group, and a substituted or unsubstituted alkoxycarbonyl group; n is an integer equal to or greater than 2; and p is an integer equal to or greater than 0. The invention also includes methods of using and preparing these polymers.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: May 29, 2007
    Assignees: University of Massachusettes Lowell, United States of America, as represented by the Secretary of the Army
    Inventors: Ashok L. Cholli, Vijayendra Kumar, Jayant Kumar, Virinder Singh Parmar, Lynne Ann Samuelson, Ferdinando F. Bruno
  • Patent number: 6962963
    Abstract: The invention relates to new methods of enzymatic synthesis of polymers such as polyorganosilicones and polyesters, and new polymers made by these methods.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: November 8, 2005
    Assignee: University of Massachusetts
    Inventors: Rajesh Kumar, Arthur C. Watterson, Virinder Singh Parmar, Jayant Kumar, Lynne Ann Samuelson
  • Publication number: 20040214935
    Abstract: One group of polymers comprise repeat units of Structural Formula (I) and/or (II): 1
    Type: Application
    Filed: January 21, 2004
    Publication date: October 28, 2004
    Applicants: University of Massachusetts Lowell, Government of the United States, as represented by the Secretary of the Army
    Inventors: Ashok L. Cholli, Vijayendra Kumar, Ashish Dhawan, Jayant Kumar, Virinder Singh Parmar, Lynne Ann Samuelson, Ferdinando F. Bruno
  • Publication number: 20040152176
    Abstract: The invention relates to new methods of enzymatic synthesis of polymers such as polyorganosilicones and polyesters, and new polymers made by these methods.
    Type: Application
    Filed: October 17, 2003
    Publication date: August 5, 2004
    Inventors: Rajesh Kumar, Arthur C. Watterson, Virinder Singh Parmar, Jayant Kumar, Lynne Ann Samuelson
  • Publication number: 20030230743
    Abstract: Antioxidant polymers of the present invention comprise repeat units that include one or both of Structural Formulas (I) and (II): 1
    Type: Application
    Filed: April 4, 2003
    Publication date: December 18, 2003
    Applicant: University of Massachusetts Lowell
    Inventors: Ashok L. Cholli, Vijayendra Kumar, Jayant Kumar, Virinder Singh Parmar, Lynne Ann Samuelson, Ferdinando F. Bruno