Patents by Inventor Kamlesh Singh

Kamlesh Singh 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: 20160143894
    Abstract: A crystalline Form N-1 of apixaban substantially free from one or more of: 1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid; 7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-1-phenyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxamide; or methyl 1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylate, relative to apixaban by area percentage of HPLC and having a mean particle size equal to or greater than 100 ?m.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 26, 2016
    Inventors: Brij KHERA, Kumar Kamlesh SINGH, Santosh Devidas DIWAKAR, Sunil Dnyaneshwar NARODE, Hiteshkumar Natwarlal SUTHAR
  • Publication number: 20160113912
    Abstract: The present invention relates to an improved process for the preparation of apixaban and intermediates thereof. In particular, the invention relates to an improved process for the preparation of an amorphous form of apixaban. The invention also relates to a pharmaceutical composition comprising an amorphous form of apixaban for oral administration as an antithrombotic agent.
    Type: Application
    Filed: June 17, 2014
    Publication date: April 28, 2016
    Inventors: Shriprakash Dhar DWIVEDI, Kumar Kamlesh SINGH, Nitin TANDON, Digambar WARE
  • Patent number: 9249134
    Abstract: A stable amorphous form of dasatinib of Formula (I) wherein amorphous dasatinib after exposure to a relative humidity of 75% at 40 ° C. or 60% at 25 ° C. for a period of at least three months doesn't change to crystalline form and a process for the preparation of the amorphous form of dasatinib of Formula (I).
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: February 2, 2016
    Assignee: Cadila Healthcare Limited
    Inventors: Shriprakash Dhar Dwivedi, Kumar Kamlesh Singh, Nikhil Amar Singh, Amol Kashinath Patil
  • Publication number: 20150283249
    Abstract: The present invention provides an amorphous form of apremilast and process for preparation thereof. The present invention also provides a pharmaceutical composition comprising an amorphous apremilast and one or more of pharmaceutically acceptable carriers, excipients or diluents used for the treatment of active psoriatic arthritis.
    Type: Application
    Filed: April 2, 2015
    Publication date: October 8, 2015
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Brij KHERA, Kumar Kamlesh SINGH, Santosh Devidas DIWAKAR, Chetan Jayantibhai VASAVA, Anil Kumar Shivprasad TIWARI
  • Publication number: 20150210649
    Abstract: The present invention provides an isopropanol solvate of enzalutamide. The present invention also provides a process for the preparation of androgen receptor antagonist. In particular, the present invention provides a process for the preparation of enzalutamide or its pharmaceutically acceptable salts, hydrates, solvates, polymorphs or intermediates thereof.
    Type: Application
    Filed: January 27, 2015
    Publication date: July 30, 2015
    Inventors: Shri Prakash Dhar Dwivedi, Kumar Kamlesh Singh, Ganpat Dan Shimbu Charan
  • Publication number: 20150087834
    Abstract: The present invention relates to a method for the preparation of sitagliptin phosphate and sitagliptin phosphate anhydrous of Formula (I?) and monohydrate of Formula (I),
    Type: Application
    Filed: March 20, 2014
    Publication date: March 26, 2015
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Shri prakash Dhar DWIVEDI, Kumar Kamlesh SINGH, Sunil Dnyaneshwar NARODE, Dhaval Jashvantbhai PATEL, Kirtipalsinh Sajjansinh SOLANKI
  • Publication number: 20150051228
    Abstract: The present invention relates to an amorphous form of linagliptin and processes for the preparation thereof. The invention also relates to a pharmaceutical composition comprising therapeutically effective amount of an amorphous form of linagliptin and use of said composition for treatment of diabetes especially type-I or type-II, prediabetes or reduction of glucose tolerance.
    Type: Application
    Filed: March 12, 2013
    Publication date: February 19, 2015
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Shriprakash Dhar Dwivedi, Ashok Prasad, Kuldeep Natwarlal Jain, Kumar Kamlesh Singh, Jitendra Maganbhai Gajera
  • Publication number: 20140343073
    Abstract: A stable amorphous form of dasatinib of Formula (I) wherein amorphous dasatinib after exposure to a relative humidity of 75% at 40° C. or 60% at 25° C. for a period of at least three months doesn't change to crystalline form and a process for the preparation of the amorphous form of dasatinib of Formula (I).
    Type: Application
    Filed: March 24, 2014
    Publication date: November 20, 2014
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: SHRIPRAKASH DHAR DWIVEDI, KUMAR KAMLESH SINGH, NIKHIL AMAR SINGH, AMOL KASHINATH PATIL
  • Publication number: 20140121215
    Abstract: The field of the invention relates to a process for the preparation of amorphous imatinib mesylate. In particular, the invention relates to a process for the preparation of stable amorphous imatinib mesylate. More particularly, the invention relates to pharmaceutical compositions that includes the stable amorphous imatinib mesylate together along with its excipients.
    Type: Application
    Filed: October 22, 2013
    Publication date: May 1, 2014
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Shriprakash Dhar DWIVEDI, Kumar Kamlesh SINGH, Ganpant Dan Shimbu CHARAN, Chetan Jayantibhai VASAVA
  • Publication number: 20140113942
    Abstract: The present invention relates to process an improved process for the preparation of azilsartan medoxomil. In particular, the field of invention relates to a process for purification of azilsartan medoxomil. More particularly, the invention relates to an improved process for preparation of azilsartan medoxomil and its pharmaceutically acceptable salts.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 24, 2014
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Shriprakash Dhar DWIVEDI, Kumar Kamlesh SINGH, Jitendra Maganbhai GAJERA