Patents by Inventor Kumar Kamlesh Laxmi Singh

Kumar Kamlesh Laxmi 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).

  • PROCESS FOR PREPARING STABLE POLYMORPHIC FORM OF ERLOTINIB HYDROCHLORIDE
    Publication number: 20140121373
    Abstract: The present invention discloses an improved and efficient process for preparing Erlotinib hydrochloride suitable as a cancer drug.
    Type: Application
    Filed: April 23, 2012
    Publication date: May 1, 2014
    Applicant: CADILA HEALTHCARE LIMITED
    Inventors: Nikhil Amar Singh, Gulab Khushalrao Pathe, Dinesh Kumar Chaurasiya, Kumar Kamlesh Laxmi Singh
  • Process for the preparation of 7-ethyl-10-[4-(1-piperidino)-1-piperdino] carbonyloxy-camptothecin hydrochloride trihydrate
    Patent number: 8546573
    Abstract: The present invention relates to process for the preparation of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin hydrochloride trihydrate and process for the isolation of 1-chlorocarbonyl-4-piperidinopiperidine and novel crystalline form of 1-chlorocarbonyl-4-piperidinopiperidine and 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: October 1, 2013
    Assignee: Cadila Healthcare Limited
    Inventors: Ganpat Dan Shimbhu Charan, Arun Ankush Tanpure, Kumar Kamlesh Laxmi Singh
  • PROCESS FOR THE PREPARATION OF 7-ETHYL-10-[4- (1-PIPERIDINO)- 1-PIPERIDINO] CARBONYLOXY-CAMPTOTHECIN HYDROCHLORIDE TRIHYDRATE
    Publication number: 20110144342
    Abstract: The present invention relates to process for the preparation of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin hydrochloride trihydrate and process for the isolation of 1-chlorocarbonyl-4-piperidinopiperidine and novel crystalline form of 1-chlorocarbonyl-4-piperidinopiperidine and 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin.
    Type: Application
    Filed: November 10, 2010
    Publication date: June 16, 2011
    Inventors: Ganpat Dan Shimbhu CHARAN, Arun Ankush Tanpure, Kumar Kamlesh Laxmi Singh