Patents by Inventor Virendra Kumbhar

Virendra Kumbhar 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).

  • Multimodal anion exchange matrices
    Patent number: 11718643
    Abstract: The invention discloses a separation matrix which comprises a plurality of separation ligands, defined by the formula R1-L1-N(R3)-L2-R, immobilized on a support, wherein R1 is a five- or six-membered, substituted or non-substituted ring structure or a hydroxyethyl or hydroxypropyl group; L1 is either a methylene group or a covalent bond; R2 is a five- or six-membered, substituted or non-substituted ring structure; L2 is either a methylene group or a covalent bond; R3 is a methyl group; and wherein if R1 is a hydroxyethyl group and L1 is a covalent bond, R2 is a substituted aromatic ring structure or a substituted or non-substituted aliphatic ring structure.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: August 8, 2023
    Assignee: Cytiva BioProcess R&D AB
    Inventors: Jean-Luc Maloisel, Gustav Rodrigo, Bjorn Noren, Virendra Kumbhar
  • Multimodal anion exchange matrices
    Patent number: 10815269
    Abstract: The invention discloses a separation matrix which comprises a plurality of separation ligands, defined by the formula R1-L1-N(R3)-L2-R, immobilized on a support, wherein R1 is a five- or six-membered, substituted or non-substituted ring structure or a hydroxyethyl or hydroxypropyl group; L1 is either a methylene group or a covalent bond; R2 is a five-or six-membered, substituted or non-substituted ring structure; L2 is either a methylene group or a covalent bond; R3 is a methyl group; and wherein if R1 is a hydroxyethyl group and L1 is a covalent bond, R2 is a substituted aromatic ring structure or a substituted or non-substituted aliphatic ring structure.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: October 27, 2020
    Assignee: GE Healthcare BioProcess R&D AB
    Inventors: Jean-Luc Maloisel, Gustav Rodrigo, Bjorn Noren, Virendra Kumbhar
  • Multimodal Anion Exchange Matrices
    Publication number: 20190023735
    Abstract: The invention discloses a separation matrix which comprises a plurality of separation ligands, defined by the formula R1-L1-N(R3)-L2-R, immobilized on a support, wherein R1 is a five- or six-membered, substituted or non-substituted ring structure or a hydroxyethyl or hydroxypropyl group; L1 is either a methylene group or a covalent bond; R2 is a five-or six-membered, substituted or non-substituted ring structure; L2 is either a methylene group or a covalent bond; R3 is a methyl group; and wherein if R1 is a hydroxyethyl group and L1 is a covalent bond, R2 is a substituted aromatic ring structure or a substituted or non-substituted aliphatic ring structure.
    Type: Application
    Filed: August 29, 2018
    Publication date: January 24, 2019
    Applicant: GE Healthcare BioProcess R&D AB
    Inventors: Jean-Luc Maloisel, Gustav Rodrigo, Bjorn Noren, Virendra Kumbhar
  • Multimodal Anion Exchange Matrices
    Publication number: 20150299248
    Abstract: The invention discloses a separation matrix which comprises a plurality of separation ligands, defined by the formula R1-L1-N(R3)-L2-R, immobilized on a support, wherein R1 is a five- or six-membered, substituted or non-substituted ring structure or a hydroxyethyl or hydroxypropyl group; L1 is either a methylene group or a covalent bond; R2 is a five- or six-membered, substituted or non-substituted ring structure; L2 is either a methylene group or a covalent bond; R3 is a methyl group; and wherein if R1 is a hydroxyethyl group and L1 is a covalent bond, R2 is a substituted aromatic ring structure or a substituted or non-substituted aliphatic ring structure.
    Type: Application
    Filed: November 11, 2013
    Publication date: October 22, 2015
    Applicant: GE Healtchare Bio-Sciences AB
    Inventors: Jean-Luc Maloisel, Gustav Rodrigo, Bjorn Noren, Virendra Kumbhar