Patents Assigned to Reddy's Laboratories Limited
  • DEXLANSOPRAZOLE COMPOSITIONS
    Publication number: 20120231073
    Abstract: Premixes of dexlansoprazole with pharmaceutical excipients, processes for preparing premixes, pharmaceutical formulations containing the premixes, and their use in treatment of erosive esophagitis and heartburn associated with non-erosive gastroesophageal reflux disease.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 13, 2012
    Applicants: DR. REDDY'S LABORATORIES, INC., DR. REDDY'S LABORATORIES LIMITED
    Inventors: Nagaraju Manne, Udaykumar Neelam, Sudhakar Reddy Baddam, Naveen Kumar Kolla, Venkata Nookaraju Sreedharala, Chandra Sekhar Veera Venkata Naga Bulusu
  • Anthistamine-decongestant pharmaceutical compositions
    Patent number: 8263124
    Abstract: The present invention relates to pharmaceutical compositions of antihistamine-decongestant combination. Specifically the invention relates to bilayered tablet formulation comprising antihistaminic decongestant combination. More specifically present invention relates to the novel polymorph of fexofenadine or pharmaceutically accepted salts thereof, with at least one decongestant in the form of bilayered tablet. The preferred polymorphs are polymorph A and polymorph X of fexofenadine hydrochloride.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: September 11, 2012
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Kamalakar Talasila, Debashis Dash, Srinivas Irukula, Dhanorkar Vipin Tatyasaheb, Mailatur Sivaraman Mohan
  • Preparation of amorphous hydrous esomeprazole magnesium
    Patent number: 8134008
    Abstract: A hydrate of esomeprazole magnesium in the form of an amorphous solid is provided. Methods of preparation and use of, as well as formulation containing the hydrate of esomeprazole magnesium in the form of an amorphous solid are also provided.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: March 13, 2012
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Manne Satyanarayana Reddy, Muppa Kishore Kumar, Koilkonda Purandhar, Keshaboina Sreenath
  • COMPOSITIONS FOR DRUG DELIVERY
    Publication number: 20120041029
    Abstract: Substantially non-porous polymeric microparticles comprising a hydrophobic polymer and a plasticizer, and containing therein a bioactive or bioinactive agent.
    Type: Application
    Filed: October 17, 2011
    Publication date: February 16, 2012
    Applicants: DR. REDDY'S LABORATORIES, INC., DR. REDDY'S LABORATORIES LIMITED
    Inventors: Arutla Srinivas, Harshal P. Bhagwatwar, Vakati Venkat Arvind, Saravana Perumal, Vemula Sathya Narayana, Mandavalli Srirama Sarveswara Rao, Venkateswarlu Vobalaboina, Nookaraju Venkata Sreedharala
  • Thiazoles derivatives as AMPK activator
    Patent number: 8080668
    Abstract: The present application provides novel thiazole derivatives that are useful as activators of Adenosine 5?-Monophosphate-Activated Protein Kinase and pharmaceutical compositions containing such compounds.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: December 20, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Vijay Kumar Potluri, Saibal Kumar Das, Pradip Kumar Sasmal, Javed Iqbal, Parimal Misra, Ranjan Chakrabarti, Rashmi Talwar
  • 5(S)-(2?-hydroxyethoxy)-20(S)-camptothecin and its preparation and use for the treatment of cancer
    Patent number: 8080559
    Abstract: A 5(S)-(2?-hydroxyethoxy)-20(S)-camptothecin diasterisomer is described which is a better inhibitor of topoisomerase I than either the diastereoisomeric mixture 5(RS)-(2?-hydroxyethoxy)-20(S)-camptothecin, or the 5(R)-(2?-hydroxyethoxy)-20(S)-camptothecin diastereoisomer. Pharmaceutical compositions of the 5(S)-(2?-hydroxyethoxy)-20(S)-camptothecin diastereoisomer are also described as are methods of using the compound for the inhibition of topoisomerase I and for the treatment of cancer.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: December 20, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Venkateswarlu Akella, Shanavas Alikunju, Ajaya Kumar Reka, Ramesh Mullangi, Raju Sirisilla, Subrahmanyam Duvvuri, Sriram Rajagopal
  • PHARMACEUTICAL COMPOSITIONS COMPRISING ROPINIROLE
    Publication number: 20110287097
    Abstract: Controlled release pharmaceutical compositions comprising ropinirole or pharmaceutically acceptable salts thereof, wherein embodiments have ropinirole embedded in a matrix comprising one or more polymers, and the composition in monolithic form or in multiparticulate form.
    Type: Application
    Filed: August 14, 2008
    Publication date: November 24, 2011
    Applicants: DR. REDDY'S LABORATORIES, INC., DR. REDDY'S LABORATORIES LIMITED
    Inventors: Hemanth Prakash Joshi, Narayanan Badri Vishwanathan
  • Polymorphic forms of tadalafil
    Patent number: 8063214
    Abstract: A process for preparing crystalline Form A of tadalafil (I), comprising crystallization from a solution of tadalafil in a solvent comprising a C3-C7 ester, a ketone, dimethylformamide, dimethylsulfoxide, ethanol, acetonitrile, a chlorinated hydrocarbon, t-butanol, N,N-dimethylacetamide, dioxane, N-methyl pyrrolidone, or a mixture of any two or more thereof.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: November 22, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Eswaraiah Sajja, Venkata Naga Kali Vara Prasada Raju Vetukuri, Srinivas Reddy Ningam, Ravindra Vedantham, Rajyalakshmi Bodepudi
  • Polymorphic forms of esomeprazole sodium
    Patent number: 8063074
    Abstract: Polymorphic crystalline Forms J, K, L, M, and N of esomeprazole sodium.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: November 22, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Vijayabhaskar Bolugoddu, Amarnath Reddy Lekkala, Saurabh Shashikant Chitre, Srinivas Reddy Mamilla, Venkata Annapurna Sasikala Cheemalapati, Siva Prasad Reddy Seerapu
  • Eszopiclone process
    Patent number: 8058438
    Abstract: Eszopiclone is prepared by reacting zopiclone with an enatiomerically pure di-p-toluoyl tartaric acid, recovering a solid salt, and reacting a solid salt with a base. Zopiclone is prepared by reacting 6-(5-chloropyrid-2-yl)-5-hydroxy-7-oxo-5,6-dihydropyrrolo[3,4-b]-pyrazine with 1-chlorocarbonyl-4-methylpiperazine hydrochloride.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: November 15, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.,
    Inventors: Venkata Naga Brahmeswara Rao Mandava, Sreenadhacharyulu Kandala, Mukunda Reddy Jambula, Raveendra Reddy Chinta
  • Compositions for drug delivery
    Patent number: 8053000
    Abstract: Substantially non-porous polymeric microparticles comprising a hydrophobic polymer and a plasticizer, and containing therein a bioactive or bioinactive agent.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: November 8, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.,
    Inventors: Arutla Srinivas, Harshal P. Bhagwatwar, Vakati Venkat Arvind, Saravana Perumal, Vemula Sathya Narayana, Mandavalli Srirama Sarveswara Rao, Venkateswarlu Vobalaboina, Nookaraju Venkata Sreedharala
  • Process for the preparation of fluorotetraene
    Patent number: 8049021
    Abstract: There is provided a process for preparing 21-acetyloxy-6-alpha-fluoro-pregna-1,4,9(11),16-tetraene-3,20-dione compound of Formula I, which comprises reacting 21-acetyloxy-pregna-1,3,5,9(11),16-pentaene-3-oxo acetate with a fluorinating agent.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: November 1, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Sergio Ferrino, Diego Torres, Vilas Dahanukar
  • Process for preparing (2R,3S/2S,3R)-2-(2,4-difluorophenyl)-3-(5-fluoropyrimidin-4-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol
    Patent number: 8039619
    Abstract: Voriconazole is prepared by a process comprising condensing 1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazole-1-yl)ethanone with 4-chloro-6-ethyl-5-fluoropyrimidine, in a ketone, ether, aliphatic hydrocarbon, or aromatic hydrocarbon solvent, to give (2R,3S/2S,3R)-3-(4-chloro-5-fluoropyrimidin-6-yl)-2-(2,4-diflurophenyl)-1-(1H -1,2,4-triazole-1-yl)butan-2-ol.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: October 18, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Venkataraman Sundaram, Venkata Bhaskara Rao Uppala, Surya Prabhakar Akundi, Venkateswarlu Muvva, Vijayawardhan Chitta, Alekhya Donthula, Manoj Ramesh Kharkar, Surya Narayana Devarakonda, Subba Reddy Peddireddy
  • Preparation of rivastigmine and its salts
    Patent number: 8013181
    Abstract: There are provided processes for making rivastigmine. In one embodiment, the process includes reacting S-(?)-[1-(3-hydroxyphenyl)ethyl]dimethylamine with N-ethyl-N-methyl carbamoyl chloride in the presence of an organic base to obtain a free base of rivastigmine.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: September 6, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Venkata Naga Brahmeswara Rao Mandava, Venkata Reddy Vajrala, Ganesh Varanasi, Vijay Kumar Adla, Mukund Reddy Jambula, Vijaypal Reddy Kanumathi Reddy
  • Process for preparing bisphosphonic acids
    Patent number: 8003820
    Abstract: A process for preparing a bisphosphonate compound comprises reacting a carboxylic acid with a phosphonating agent, in a cresol solvent.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: August 23, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Venkata Naga Brahmeswara Rao Mandava, Radha Krishna Singam Setty, Nagaraju Manne
  • Biccyclic compounds as GATA modulators
    Patent number: 7989463
    Abstract: Novel bicyclic compounds of the formula (I), stereoisomers, and/or pharmaceutically acceptable salts of the novel bicyclic compounds, and/or pharmaceutically acceptable salts of the stereoisomers of the novel bicyclic compounds are provided. Additionally, methods of forming novel bicyclic compounds, stereoisomers, and/or pharmaceutically acceptable salts of the novel bicyclic compounds, and/or pharmaceutically acceptable salts of the stereoisomers of the novel bicyclic compounds are provided: wherein R1, R2, m, and n are defined herein.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: August 2, 2011
    Assignee: Dr. Reddy's Laboratories Limited
    Inventors: Dibyendu De, Ish Kumar Khanna, Sivaram Pillarisetti
  • PHARMACEUTICAL COMPOSITIONS OF [5(S)-(2'-HYDROXYETHOXY)-20(S)-CAMPTOTHECIN
    Publication number: 20110177161
    Abstract: There is provided a powder composition for use in a pharmaceutical product, the composition including a) 5(S)-(2?-hydroxyethoxy)-20(S)-CPT; at least one cyclodextrin; wherein 5(S)-(2?-hydroxyethoxy)-20(S)-CPT includes less than 5% of 5(R)-(2?-hydroxyethoxy)-20(S)-CPT. Preferably, in the powder composition, 5(S)-(2?-hydroxyethoxy)-20(S)-CPT is substantially free from said 5(R)-(2?-hydroxyethoxy)-20(S)-CPT.
    Type: Application
    Filed: May 27, 2008
    Publication date: July 21, 2011
    Applicants: DR. REDDY'S LABORATORIES LIMITED, DR. REDDY'S LABORATORIES, INC.
    Inventors: Vijay Kumar Nekkanti, Pradeep Jairao Karatgi, Mahesh Paithankar, Raviraj Sukumar Pillai, Akella Venkateswarlu, Alikunju Shanvas, Reka Ajay Kumar, Mullangi Ramesh, Sirisilla Raju, Duvvuri Subrahmanyam, Rajagopal Sriram
  • Polymorphic forms of vardenafil
    Patent number: 7977478
    Abstract: Crystalline polymorphic forms of vardenafil and vardenafil hydrochloride, and processes for preparing them.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: July 12, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Eswaraiah Sajja, Ravindar Reddy Koppera, Satyanarayana Revu, Venkata Reddy Vajrala, Vijayapal Reddy Kanumathi
  • Process for preparing telmisartan
    Patent number: 7943781
    Abstract: A process comprising cyclizing 3-amino-4-butyramido-5-methylbenzoic acid to form 2-n-propyl-4-methyl-benzimidazole-6-carboxylic acid.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: May 17, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Sundaram Venkataraman, Vijayavitthal Thippannachar Mathad, Srirami Reddy Kikkuru, Srinivasan Neti, Raveendra Reddy Chinta, Muthulingam Arunagiri, Lalitha Kumari Routhu
  • Tetracycline derivatives as antibacterial agents
    Patent number: 7939513
    Abstract: In accordance with one aspect, the present invention provides a compound of general formula (I), its stereoisomers thereof and/or its pharmaceutically acceptable salts thereof, which have antibacterial activity; with methods of treating infectious diseases in warm blooded animals employing these new compounds. wherein R1 is selected from optionally substituted alkyl.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: May 10, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Mohamed Takhi, Natesan Selvakumar, Sreenivas Kandepu, Gavara Govinda Rajulu, Javed Iqbal