Patents by Inventor Abdul Rehman KHAN

Abdul Rehman KHAN 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 preparation of obeticholic acid
    Patent number: 10875887
    Abstract: The invention of the present application relates to the process for the preparation of intermediates of obeticholic acid and their conversion to obeticholic acid. The process involves the conversion of compound of formula (VI) to compound of formula (VII) in presence of an organic base.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: December 29, 2020
    Assignee: DR. REDDY'S LABORATORIES LIMITED.
    Inventors: Vilas Hareshwar Dahanukar, Rama Mohan Hindupur, Rashid Abdul Rehman Khan, Satishbhai Sukhlalbhai More, Vikas Sadashiv Gajare, Sandip Ramdas Khobare, Krishna Mohan Thalabathula, Rajender Datrika, Sreenivasulu Madi Shetty
  • PROCESS FOR PREPARATION OF OBETICHOLIC ACID
    Publication number: 20200317715
    Abstract: The invention of the present application relates to the process for the preparation of intermediates of obeticholic acid and their conversion to obeticholic acid. The process involves the conversion of compound of formula (VI) to compound of formula (VII) in presence of an organic base.
    Type: Application
    Filed: May 31, 2017
    Publication date: October 8, 2020
    Inventors: Vilas Hareshwar Dahanukar, Rama Mohan Hindupur, Rashid Abdul Rehman Khan, Satishbhai Sukhlalbhai More, Vikas Sadashiv Gajare, Sandip Ramdas Khobare, Krishna Mohan Thalabathula, Rajender Datrika, Sreenivasulu Madi Shetty
  • IMPROVED PROCESS FOR PREPARATION OF AMORPHOUS LINACLOTIDE
    Publication number: 20170275335
    Abstract: The present application relates to an improved process for the formation of disulfide bonds in linaclotide. The present application also relates to an improved process for the purification of linaclotide.
    Type: Application
    Filed: July 21, 2015
    Publication date: September 28, 2017
    Inventors: Dipak KALITA, Ramrao Jogdand NIVRUTTI, Kesavan BALAKUMARAN, Shivshankar DESHMUKH, Naga Chandra Sekhar VUTUKURU, Vara Prasad KASINA, Sivannarayana NALAMOTHU, Mohan Sundaram VILVA, Rashid Abdul Rehman KHAN, Ramreddy TIRUMALAREDDY, Sairam MUSTOORI
  • Oral pharmaceutical composition of aliphatic amine polymer or salts thereof
    Patent number: 9566299
    Abstract: The present invention relates to an oral pharmaceutical composition of aliphatic amine polymer or salts thereof comprising mixture of water and organic solvent(s) and/or less than of about 10% of plasticizing agent in the coating composition. In particular, present invention relates to a coated pharmaceutical composition of aliphatic amine polymer or salt thereof which comprises mixture of water and organic solvent(s) and less than of about 10% of plasticizing agent in coating. The invention also includes process of preparing such composition.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: February 14, 2017
    Assignee: WOCKHARDT LIMITED
    Inventors: Girish Kumar Jain, Venkataramana Naidu, Abdul Rehman Khan, Amar Agarwal, Srikanth Pattipati
  • Oral pharmaceutical composition of aliphatic amine polymer or salts thereof
    Publication number: 20150374744
    Abstract: The present invention relates to an oral pharmaceutical composition of aliphatic amine polymer or salts thereof comprising mixture of water and organic solvent(s) and/or less than of about 10% of plasticizing agent in the coating composition. In particular, present invention relates to a coated pharmaceutical composition of aliphatic amine polymer or salt thereof which comprises mixture of water and organic solvent(s) and less than of about 10% of plasticizing agent in coating. The invention also includes process of preparing such composition.
    Type: Application
    Filed: February 5, 2014
    Publication date: December 31, 2015
    Inventors: Girish Kumar JAIN, Venkataramana NAIDU, Abdul Rehman KHAN, Amar AGARWAL, Srikanth PATTIPATI
  • Process for the preparation of substituted phenyl ether compounds
    Publication number: 20090149508
    Abstract: A novel process for the preparation of a compound of the formula (II), which is useful as intermediate compound for the preparation of thiazolidinedione derivatives, such as rosiglitazone, pioglitazone, troglitazone and ciglitazone, is disclosed.
    Type: Application
    Filed: July 25, 2006
    Publication date: June 11, 2009
    Applicant: Sandoz AG
    Inventors: Johannes Ludescher, Rashid Abdul Rehman Khan, Aniruddha Paul
  • Stable polymorphs of (E)-N,N-diethyl-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylamide
    Publication number: 20080004343
    Abstract: The present invention provides stable crystalline polymorphic Form C and Form D of (E)-Entacapone, (E)-N,N-diethyl-2-cyano-3-(3,4-dihydroxy-5-henyl)acrylamide and processes for their preparation. The polymorphic Form C and Form D of (E)-Entacapone are characterized by specific Infra Red (IR) and X-ray powder diffraction peak values.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventors: Siddiqui Mohammed Jaweed Mukarram, Rashid Abdul Rehman Khan, Ram Prasad Yadav, Zakir Gafoor Shaikh