Patents by Inventor Himadri Sen

Himadri Sen 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).

  • Patent number: 11850567
    Abstract: A co-rotating twin screw processor for preparing dry granules including an input zone having one or more powder feeders for feeding an input material into the processor, a steam feeder configured to introduce steam as a granulation activating agent in to the processor, a granulation zone for granulating the input material in the presence of steam to form granules, a controller configured to control operation and feed rate of at least one of the powder feeder or the steam feeder such that 2.5 to 5 percent w/w of the steam with respect to the input material is available for granulation, and a discharge zone haring a non-extruding opening for collecting dry granules.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: December 26, 2023
    Assignee: STEERLIFE INDIA PRIVATE LIMITED
    Inventors: Radhika Ghike, Vijay Kulkarni, Indu Bhushan, Himadri Sen, Babu Padmanabhan, Vinay Rao
  • Patent number: 11576855
    Abstract: The present disclosure concerns effervescent compositions and methods of making and using the same. In some embodiments, the disclosed effervescent compositions are formed from an input blend comprising an acid and a base by granulating the input blend in a twin-screw processor. The granules formed from the input blend can be formed by an in situ granulating agent, which can be a portion of the acid that melts during granulation. In some embodiments, the effervescent compositions can be made using a twin-screw processor comprising an intake zone for receiving an input blend comprising an acid and a base; a granulation initiation zone for melting only a portion of the acid to serve as an in situ granulating agent; a granulation completion zone for granulating the input blend; and an outlet for discharging the granules.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: February 14, 2023
    Assignee: STEERLIFE INDIA PRIVATE LIMITED
    Inventors: Babu Padmanabhan, Rakshit Shetty, Vijay Kulkarni, Himadri Sen, Indu Bhushan
  • Publication number: 20220192973
    Abstract: The present disclosure concerns effervescent compositions and methods of making and using the same. In some embodiments, the disclosed effervescent compositions are formed from an input blend comprising an acid and a base by granulating the input blend in a twin-screw processor. The granules formed from the input blend can be formed by an in situ granulating agent, which can be a portion of the acid that melts during granulation. In some embodiments, the effervescent compositions can be made using a twin-screw processor comprising an intake zone for receiving an input blend comprising an acid and a base; a granulation initiation zone for melting only a portion of the acid to serve as an in situ granulating agent; a granulation completion zone for granulating the input blend; and an outlet for discharging the granules.
    Type: Application
    Filed: August 25, 2021
    Publication date: June 23, 2022
    Inventors: Babu PADMANABHAN, Rakshit SHETTY, Vijay KULKARNI, Himadri SEN, Indu BHUSHAN
  • Publication number: 20210046439
    Abstract: The present disclosure relates to a process for preparing granules from an input material or a powder material. The process comprises feeding the input material for granulation in the processor using one or more powder feeders, introducing steam as a granulation activating agent in the processor, granulating the input material in presence of the steam to form granules, and optionally collecting the granules from a discharge zone of the processor, wherein feed rate of the steam into the processor is determined based on feed rate of the input material into the processor. A co-rotating twin-screw processor for preparing granules is also disclosed.
    Type: Application
    Filed: August 31, 2020
    Publication date: February 18, 2021
    Inventors: Radhika Ghike, Vijay Kulkarni, Indu Bhushan, Himadri Sen, Babu Padmanabhan, Vinay Rao
  • Patent number: 10792634
    Abstract: A process for preparing granules is disclosed. The process comprises the steps of feeding the input material for granulation in a processor using one or more powder feeders, introducing steam as a granulation activating agent in the processor, granulating the input material in presence of the steam to form granules, and collecting the granules from a discharge zone of the processor. A co-rotating twin-screw processor for preparing granules is also disclosed.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: October 6, 2020
    Assignee: Intel Corporation
    Inventors: Radhika Ghike, Vijay Kulkarni, Indu Bhushan, Himadri Sen, Babu Padmanabhan, Vinay Rao
  • Publication number: 20190060242
    Abstract: A rapidly disintegrating tablet comprising a therapeutically effective amount of a DPP-IV inhibitor and an acid-base couple having mineral content below the daily intake limits is disclosed. The rapidly disintegrating tablet has a sodium content less than 10 mg and a potassium content less than 15 mg. A process for preparation of the rapidly disintegrating tablet comprising the DPP-IV inhibitor is also disclosed.
    Type: Application
    Filed: October 7, 2016
    Publication date: February 28, 2019
    Applicant: STEERLIFE INDIA PRIVATE LIMITED
    Inventors: Babu PADMANABHAN, Himadri SEN, Indu BHUSHAN, Vijay KULKARNI, Rakshith SHETTY, Aravind Kumar GURRAM
  • Patent number: 10213948
    Abstract: A co-rotating twin screw extruder for forming fragments is disclosed. The extruder comprises of an intake zone for receiving one or more excipient(s) suitable for oral dosage or one or more excipient(s) suitable for oral dosage along with one or more active pharmaceutical ingredient, a melt zone for softening at least one excipient to form a viscous mass or melt and a fragmenting zone for fragmenting and cooling the viscous mass into cooled fragments and an extruder outlet for recovering the cooled fragments from the extruder.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: February 26, 2019
    Assignee: Steerlife India Private Limited
    Inventors: Babu Padmanabhan, Suneela Prodduturi, Himadri Sen
  • Patent number: 10130624
    Abstract: A stable pharmaceutical composition consisting of (a) benazepril, in free or pharmaceutically acceptable salt form; and (b) amlodipine, in free or pharmaceutically acceptable salt form. The composition is free of alkali and alkaline earth metal carbonates and phosphates. The composition is also free of excipients which increase the pH of microenvironment above 5. It is therefore not required to physically separate the two drugs from each other.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: November 20, 2018
    Assignee: LUPIN LIMITED
    Inventors: Veena Vithalapuram, Vijaya Kumar Thommandru, Himadri Sen
  • Publication number: 20180214835
    Abstract: The present disclosure relates to a process for preparing granules from an input material or a powder material. The process comprises feeding the input material for granulation in the processor using one or more powder feeders, introducing steam as a granulation activating agent in the processor, granulating the input material in presence of the steam to form granules, and optionally collecting the granules from a discharge zone of the processor, wherein feed rate of the steam into the processor is determined based on feed rate of the input material into the processor.
    Type: Application
    Filed: August 1, 2016
    Publication date: August 2, 2018
    Inventors: Radhika Ghike, Vijay Kulkarni, Indu Bhushan, Himadri Sen, Babu Padmanabhan, Vinay Rao
  • Publication number: 20180200938
    Abstract: A co-rotating twin screw extruder for forming fragments is disclosed. The extruder comprises of an intake zone for receiving one or more excipient(s) suitable for oral dosage or one or more excipient(s) suitable for oral dosage along with one or more active pharmaceutical ingredient, a melt zone for softening at least one excipient to form a viscous mass or melt and a fragmenting zone for fragmenting and cooling the viscous mass into cooled fragments and an extruder outlet for recovering the cooled fragments from the extruder.
    Type: Application
    Filed: March 13, 2018
    Publication date: July 19, 2018
    Applicant: SteerLife India Private Limited
    Inventors: Babu Padmanabhan, Suneela Prodduturi, Himadri Sen
  • Patent number: 9956709
    Abstract: A co-rotating twin screw extruder for forming fragments is disclosed. The extruder comprises of an intake zone for receiving one or more excipient(s) suitable for oral dosage or one or more excipient(s) suitable for oral dosage along with one or more active pharmaceutical ingredient, a melt zone for softening at least one excipient to form a viscous mass or melt and a fragmenting zone for fragmenting and cooling the viscous mass into cooled fragments and an extruder outlet for recovering the cooled fragments from the extruder.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: May 1, 2018
    Assignee: SteerLife India Private Limited
    Inventors: Babu Padmanabhan, Suneela Prodduturi, Himadri Sen
  • Publication number: 20170252295
    Abstract: The present disclosure concerns effervescent compositions and methods of making and using the same. In some embodiments, the disclosed effervescent compositions are formed from an input blend comprising an acid and a base by granulating the input blend in a twin-screw processor. The granules formed from the input blend can be formed by an in situ granulating agent, which can be a portion of the acid that melts during granulation. In some embodiments, the effervescent compositions can be made using a twin-screw processor comprising an intake zone for receiving an input blend comprising an acid and a base; a granulation initiation zone for melting only a portion of the acid to serve as an in situ granulating agent; a granulation completion zone for granulating the input blend; and an outlet for discharging the granules.
    Type: Application
    Filed: March 26, 2015
    Publication date: September 7, 2017
    Applicant: STEERLIFE INDIA PRIVATE LIMITED
    Inventors: Babu Padmanabhan, Rakshit Shetty, Vijay Kulkarni, Himadri Sen, Indu Bhushan
  • Publication number: 20160082640
    Abstract: A co-rotating twin screw extruder for forming fragments is disclosed. The extruder comprises of an intake zone for receiving one or more excipient(s) suitable for oral dosage or one or more excipient(s) suitable for oral dosage along with one or more active pharmaceutical ingredient, a melt zone for softening at least one excipient to form a viscous mass or melt and a fragmenting zone for fragmenting and cooling the viscous mass into cooled fragments and an extruder outlet for recovering the cooled fragments from the extruder.
    Type: Application
    Filed: May 27, 2014
    Publication date: March 24, 2016
    Applicant: STEER ENGINEERING PRIVATE LIMITED
    Inventors: Babu Padmanabhan, Suneela Prodduturi, Himadri Sen
  • Patent number: 9241905
    Abstract: A pharmaceutical suspension formulation comprising a dose greater than 100 mg/5 ml Cefixime and pharmaceutically acceptable excipients.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: January 26, 2016
    Assignee: LUPIN LIMITED
    Inventors: Sanjay Chhagan Wagh, Bharat Raghunath Metkar, Makarand Krishnakumar Avachat, Himadri Sen
  • Patent number: 9149482
    Abstract: A chewable tablet comprising Cefixime having a mean particle size between 20? and 120? wherein the said composition demonstrates bioequivalence to a suspension of Cefixime trihydrate. The process of preparation of the chewable tablet comprises the steps of optionally micronizing Cefixime such that the mean particle size of the Cefixime particles is between 20? and 120?, blending with other excipients, roll compaction, milling to form granules, blending to form a secondary blend and compression of the secondary blend to form tablets.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: October 6, 2015
    Assignee: Lupin Ltd.
    Inventors: Sanjay Wagh, Hidaytulla Aga, Makarand Avachat, Himadri Sen
  • Patent number: 8900637
    Abstract: A stable taste masked, pharmaceutical composition comprising a plurality of coated, non-disintegrating discrete dosage units, said units comprising of a core comprising one or more cephalosporins such as cefuroxime axetil and cefpodoxime proxetil and one or more coating layers. Cefuroxime axetil is in ?-crystalline and amorphous forms, where at least 30% of the Cefuroxime axetil is in the ?-crystalline form, wherein the particle size distribution of the ?-crystalline form being such that 100% of the particles have a particle size below 250?. The ratio of the crystalline fraction to the amorphous fraction ranges from 0.3:0.7 to 0.99:0.01. The particle size of cefpodoxime proxetil is such that 90% of the particles are below 15?.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: December 2, 2014
    Assignee: Lupin Limited
    Inventors: Sachin Pundlik Kolhe, Subrata Kundu, Sanjay Chhagan Wagh, Makarand Krishnakumar Avachat, Himadri Sen
  • Publication number: 20140171401
    Abstract: A chewable tablet comprising Cefixime having a mean particle size between 20? and 120? wherein the said composition demonstrates bioequivalence to a suspension of Cefixime trihydrate. The process of preparation of the chewable tablet comprises the steps of optionally micronizing Cefixime such that the mean particle size of the Cefixime particles is between 20? and 120?, blending with other excipients, roll compaction, milling to form granules, blending to form a secondary blend and compression of the secondary blend to form tablets.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: LUPIN LTD.
    Inventors: Sanjay WAGH, Hidaytulla AGA, Makarand AVACHAT, Himadri SEN
  • Patent number: 8192755
    Abstract: An improved stable pharmaceutical composition for controlled release of an active ingredient comprises a betalactam antibiotic such as cephalexin, cefaclor or their pharmaceutically acceptable hydrates, salts or esters as active ingredient, a calcium salt and a mixture of hydrophilic polymers selected from the group consisting of at least one sodium alginate and one xanthan gum and with or without hydroxypropyl methylcellulose, said composition optionally containing probenecid. The composition may also contain one or more of a water soluble and/or water dispersible diluent, wherein the quantities of the hydrophilic polymers and water soluble and/or water dispersible diluents are such that the therapeutically effective active ingredient is released at a rate suitable for once or twice daily administration of the pharmaceutical composition.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: June 5, 2012
    Assignee: Lupin Limited
    Inventors: Himadri Sen, Rajesh Suresh Kshirsagar, Shailesh Suresh Bhamare
  • Publication number: 20100055181
    Abstract: A controlled release dosage forms comprising zolpidem or a salt thereof to release zolpidem to induce rapid onset of sleep, and continue to release zolpidem in a controlled manner to maintain effective plasma concentrations over an extended period of time to improve sleep maintenance. The pharmaceutical controlled-release dosage form of zolpidem or a salt thereof having a dissolution profile when measured in a type I or II dissolution apparatus according to the U.S. Pharmacopoeia in 0.01M hydrochloric acid buffer at 37° C., such that less than 40% is released at the end of 30 minutes.
    Type: Application
    Filed: February 7, 2007
    Publication date: March 4, 2010
    Applicant: LUPIN LIMITED
    Inventors: Nilesh Bhandari, Vineeth Raghavan, Surya Kumar Jayanthi, Himadri Sen
  • Publication number: 20100009955
    Abstract: A pharmaceutical suspension formulation comprising a dose greater than 100 mg/5 ml Cefixime and pharmaceutically acceptable excipients.
    Type: Application
    Filed: March 23, 2007
    Publication date: January 14, 2010
    Applicant: Lupin Limited
    Inventors: Sanjay Chhagan Wagh, Bharat Raghunath Metkar, Makarand Krishnakumar Avachat, Himadri Sen