Patents by Inventor Arakali Srinivasarao Radhakrishna

Arakali Srinivasarao Radhakrishna 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).

  • Silylated polycarbonate polymers, method of making, and articles
    Patent number: 8536282
    Abstract: A polycarbonate polymer or copolymer comprising pendant silylated dihydroxy aromatic compound of the formula (1a); wherein Ga and Gb are each independently C1-12 alkyl, —OSi(C1-12 alkyl)3, C1-12 arylalkyl, or —OSi(C1-12 arylalkyl)3; Za and Zb are each independently a straight or branched C2-18 is alkylene, a C8-18 arylalkylene, or a C8-18 alkylarylene, Xa is a direct bond, a heteroatom-containing group, or a C1-18 organic group, and r and s are each independently 1 or 2 is disclosed.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: September 17, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventors: Jan Pleun Lens, Tilak Thulasi Raj, Binod Behari Sahoo, Arakali Srinivasarao Radhakrishna
  • Methods of polymer preparation using polycyclic dihydroxy compounds
    Patent number: 7381786
    Abstract: Disclosed herein is a process for preparing a polymer comprising structural units derived from polycyclic dihydroxy compound having Formula (I), wherein R1 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic functionality having 1 to 10 carbons, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; R2 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; and each R3 and R4, at each occurrence, can be the same or different and are independently at each occurrence an aliphatic functionality having 1 to 10 carbons or a cycloaliphatic functionality having 3 to 10 carbons, “n” is an integer having a value 0 to 4 and “m” is an integer ha
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: June 3, 2008
    Assignee: General Electric Company
    Inventors: Jan Henk Kamps, Jan-Pleun Lens, James A. Mahood, Arakali Srinivasarao Radhakrishna, T. Tilak Raj, Ravindra Vikram Singh
  • Antimicrobial method using a hydroxydiphenyl ether compound
    Patent number: 7105577
    Abstract: The present invention relates to the use of hydroxydiphenyl ether compounds as antimicrobially active substances, to certain new compounds of this type and to processes for the preparation of these compounds.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: September 12, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Werner Hölzl, Wolfgang Haap, Dietmar Ochs, Karin Puchtler, Marcel Schnyder, Surendra Umesh Kulkarni, Arakali Srinivasarao Radhakrishna, Mangesh Shivram Sawant, Asawari Bhikaji Mahtre
  • Polymer compositions containing benzimidazole based stabilizer compounds
    Patent number: 6919389
    Abstract: The invention discloses a stabilized resin composition comprising a thermoplastic resin and a stabilizing benzimidazole based additive compound. In a second embodiment, the invention discloses a method to make a stabilized composition comprising a benzimidazole based stabilizing compound and a resin, said method comprising mixing said benzimidazole based stabilizing compound with said resin.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: July 19, 2005
    Assignee: Crompton Corporation
    Inventors: William Palmer Enlow, Marshall D. Moore, Vaikunth Sitaram Prabhu, Tilak T. Raj, Arakali Srinivasarao Radhakrishna, Raju Kharatkar
  • Hydroxydiphenyl ether compounds
    Publication number: 20040186174
    Abstract: The present invention relates to the use of hydroxydiphenyl ether compounds as antimicrobially active substances, to certain new compounds of this type and to processes for the preparation of these compounds.
    Type: Application
    Filed: April 2, 2004
    Publication date: September 23, 2004
    Inventors: Werner Holzl, Wolfgang Haap, Dietmar Ochs, Karin Puchtler, Marcel Schnyder, Surendra Umesh Kulkarni, Arakali Srinivasarao Radhakrishna, Mangesh Shivram Sawant, Asawari Bhikaji Mahtre
  • 4-Hydroxyisothiazole compounds
    Patent number: 6759423
    Abstract: The present invention relates to the use of 4-hydroxyisothiazole compounds as antimicrobially active substances, certain new 4-hydroxyisothiazole compounds and a process for their preparation.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: July 6, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Werner Hölzl, Wolfgang Haap, Dietmar Ochs, Karin Puchtler, Marcel Schnyder, Dinesh Narendra Rele, Sitaram Pal, Asawari Bhikaji Mahtre, Surendra Umesh Kulkarni, Arakali Srinivasarao Radhakrishna
  • Hydroxydiphenyl ether compounds
    Publication number: 20030162836
    Abstract: The present invention relates to the use of hydroxydiphenyl ether compounds as antimicrobially active substances, to certain new compounds of this type and to processes for the preparation of these compounds.
    Type: Application
    Filed: October 25, 2002
    Publication date: August 28, 2003
    Inventors: Werner Holzl, Wolfgang Haap, Dietmar Ochs, Karin Puchtler, Marcel Schnyder, Surendra Umesh Kulkarni, Arakali Srinivasarao Radhakrishna, Mangesh Shivram Sawant, Asawari Bhikaji Mahtre
  • 4-hydroxyisothiazole compounds
    Publication number: 20020136697
    Abstract: The present invention relates to the use of 4-hydroxyisothiazole compounds as antimicrobially active substances, certain new 4-hydroxyisothiazole compounds and a process for their preparation.
    Type: Application
    Filed: October 3, 2001
    Publication date: September 26, 2002
    Inventors: Werner Holzl, Wolfgang Haap, Dietmar Ochs, Karin Puchtler, Marcel Schnyder, Dinesh Narendra Rele, Sitaram Pal, Asawari Bhikaji Mahtre, Surendra Umesh Kulkarni, Arakali Srinivasarao Radhakrishna
  • 4-hydroxyisothiazole compounds
    Patent number: 6376522
    Abstract: The present invention relates to the use of 4-hydroxyisothiazole compounds as antimicrobially active substances, certain new 4-hydroxyisothiazole compounds and a process for their preparation.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: April 23, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Werner Hölzl, Wolfgang Haap, Dietmar Ochs, Karin Puchtler, Marcel Schnyder, Dinesh Narenda Rele, Sitaram Pal, Asawari Bhikaji Mahtre, Surendra Umesh Kulkarni, Arakali Srinivasarao Radhakrishna