Patents by Inventor Ramachandran Radhakrishnan

Ramachandran Radhakrishnan 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: 20200361933
    Abstract: Salts, hydrates and solvates of Compound I and methods of making and using the same and related dosage forms thereof are disclosed.
    Type: Application
    Filed: February 1, 2019
    Publication date: November 19, 2020
    Inventors: Karthik Nagapudi, Yuan Liu, Shuai Wang, Wei Zhang, Fritz Blatter, Srikonda Sastry, Manshiu Leung, Ramachandran Radhakrishnan, Rajendra S. Tandale, Ludwig Pilsl, Roland Müller, Markus Frieser, Christine Czauderna, Lawrence Emerson Fisher
  • Patent number: 10010536
    Abstract: Disclosed are methods of modulating a stress activated protein kinase (SAPK) system with an active compound, wherein the active compound exhibits low potency for inhibition of at least one p38 MAPK; and wherein the contacting is conducted at a SAPK-modulating concentration that is at a low percentage inhibitory concentration for inhibition of the at least one p38 MAPK by the compound. Also disclosed are derivatives of pirfenidone. These derivatives can modulate a stress activated protein kinase (SAPK) system.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: July 3, 2018
    Assignee: INTERMUNE, INC.
    Inventors: Lawrence M. Blatt, Scott D. Seiwert, Leonid D. Beigelman, Ramachandran Radhakrishnan, Karl Kossen, Vladimir Serebryany
  • Publication number: 20170095462
    Abstract: Disclosed are methods of modulating a stress activated protein kinase (SAPK) system with an active compound, wherein the active compound exhibits low potency for inhibition of at least one p38 MAPK; and wherein the contacting is conducted at a SAPK-modulating concentration that is at a low percentage inhibitory concentration for inhibition of the at least one p38 MAPK by the compound. Also disclosed are derivatives of pirfenidone. These derivatives can modulate a stress activated protein kinase (SAPK) system.
    Type: Application
    Filed: December 21, 2016
    Publication date: April 6, 2017
    Inventors: Lawrence M. Blatt, Scott D. Seiwert, Leonid D. Beigelman, Ramachandran Radhakrishnan, Karl Kossen, Vladimir Serebryany
  • Patent number: 9527816
    Abstract: Disclosed are methods of modulating a stress activated protein kinase (SAPK) system with an active compound, wherein the active compound exhibits low potency for inhibition of at least one p38 MAPK; and wherein the contacting is conducted at a SAPK-modulating concentration that is at a low percentage inhibitory concentration for inhibition of the at least one p38 MAPK by the compound. Also disclosed are derivatives of pirfenidone. These derivatives can modulate a stress activated protein kinase (SAPK) system.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: December 27, 2016
    Assignee: InterMune, Inc.
    Inventors: Lawrence M. Blatt, Scott D. Seiwert, Leonid D. Beigelman, Ramachandran Radhakrishnan, Karl Kossen, Vladimir Serebryany
  • Publication number: 20150368200
    Abstract: A process for synthesizing pirfenidone from bromobenzene having less than about 0.15% by weight dibromobenze is disclosed. Also disclosed are processes of synthesizing pirfenidone without using ethyl acetate or n-butanol, and pirfenidone having controlled levels of ethyl acetate, n-butanol, di(5-methyl-2-pyridinone)benzenes, and other impurities having specified retention times. Also disclosed are formulated dosage forms including the disclosed pirfenidone.
    Type: Application
    Filed: August 20, 2015
    Publication date: December 24, 2015
    Inventors: Sabine M. Pyles, Michael Cyr, Ramachandran Radhakrishnan
  • Patent number: 9186338
    Abstract: Disclosed herein is a novel solubility enhancer capable of being employed in formulating safe and effective pharmaceutical formulations of partially soluble drugs, wherein the solubility enhancer is selected from dialkyl substituted amides of fatty acids having C6 to C16 carbon chain, preferably from N,N-dimethyl hexanamide, N,N-dimethyl octanamide, N,N-dialkyl decanamide, N,N-dialkyl dodecanamide or N,N-dialkyl hexadecanamide.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: November 17, 2015
    Inventor: Ramachandran Radhakrishnan
  • Publication number: 20150065720
    Abstract: A process for synthesizing pirfenidone from bromobenzene having less than about 0.15% by weight dibromobenze is disclosed. Also disclosed are processes of synthesizing pirfenidone without using ethyl acetate or n-butanol, and pirfenidone having controlled levels of ethyl acetate, n-butanol, di(5-methyl-2-pyridinone)benzenes, and other impurities having specified retention times. Also disclosed are formulated dosage forms including the disclosed pirfenidone.
    Type: Application
    Filed: November 11, 2014
    Publication date: March 5, 2015
    Inventors: Sabine M. Pyles, Michael Cyr, Ramachandran Radhakrishnan
  • Publication number: 20140363393
    Abstract: A composition for in situ formation and/or expansion of a polymer-based hemostatic agent to control bleeding includes a suitable amount of a polymer or polymer-forming component, hydrogen peroxide or chemical(s) capable of forming hydrogen peroxide, or a combination of both, and a decomposing agent for hydrogen peroxide. The decomposing agent includes an endogenously or exogenously supplied catalyst (other than catalase), or both, and/or the polymer or polymer-forming component.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 11, 2014
    Applicant: MATERIALS MODIFICATION, INC.
    Inventors: Joseph G. MONTES, Krishnaswamy Kasthuri RANGAN, Ramachandran RADHAKRISHNAN, Tirumalai Srinivas SUDARSHAN
  • Patent number: 8852558
    Abstract: A composition for in situ formation and/or expansion of a polymer-based hemostatic agent to control bleeding includes a suitable amount of a polymer or polymer-forming component, hydrogen peroxide or chemical(s) capable of forming hydrogen peroxide, or a combination of both, and a decomposing agent for hydrogen peroxide. The decomposing agent includes an endogenously or exogenously supplied catalyst (other than catalase), or both, and/or the polymer or polymer-forming component.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: October 7, 2014
    Assignee: Materials Modification, Inc.
    Inventors: Joseph G. Montes, Krishnaswamy Kasthuri Rangan, Ramachandran Radhakrishnan, Tirumalai Srinivas Sudarshan
  • Patent number: 8828358
    Abstract: A composition for in situ formation of an artificial blockage to control bleeding includes a suitable amount of a polymer-forming component, a suitable amount of a crosslinking agent, hydrogen peroxide, and a decomposing agent for hydrogen peroxide. The decomposing agent includes exogenous or endogenous catalase, or both.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: September 9, 2014
    Assignee: Materials Modifications, Inc.
    Inventors: Joseph G. Montes, Krishnaswamy Kasthuri Rangan, Ramachandran Radhakrishnan, Tirumalai Srinivas Sudarshan
  • Publication number: 20140242159
    Abstract: A capsule formulation of pirfenidone is provided that includes pharmaceutically acceptable excipients. In one embodiment, this capsule formulation is capable of sustaining desirable pharmacokinetic responses in a patient. Further provided are methods of treating fibrotic conditions and other cytokine-mediated disorders by administering pirfenidone capsules of such formulation to a patient in need.
    Type: Application
    Filed: May 7, 2014
    Publication date: August 28, 2014
    Applicant: INTERMUNE, INC.
    Inventors: Ramachandran Radhakrishnan, Ronald Vladyka, Kenneth Sultzbaugh
  • Publication number: 20140228310
    Abstract: Disclosed are methods of modulating a stress activated protein kinase (SAPK) system with an active compound, wherein the active compound exhibits low potency for inhibition of at least one p38 MAPK; and wherein the contacting is conducted at a SAPK-modulating concentration that is at a low percentage inhibitory concentration for inhibition of the at least one p38 MAPK by the compound. Also disclosed are derivatives of pirfenidone. These derivatives can modulate a stress activated protein kinase (SAPK) system.
    Type: Application
    Filed: April 28, 2014
    Publication date: August 14, 2014
    Applicant: InterMune, Inc.
    Inventors: Lawrence M. Blatt, Scott D. Seiwert, Leonid D. Beigelman, Ramachandran Radhakrishnan, Karl Kossen, Vladimir Serebryany
  • Publication number: 20140221660
    Abstract: A process for synthesizing pirfenidone from bromobenzene having less than about 0.15% by weight dibromobenze is disclosed. Also disclosed are processes of synthesizing pirfenidone without using ethyl acetate or n-butanol, and pirfenidone having controlled levels of ethyl acetate, n-butanol, di(5-methyl-2-pyridinone)benzenes, and other impurities having specified retention times. Also disclosed are formulated dosage forms including the disclosed pirfenidone.
    Type: Application
    Filed: April 8, 2014
    Publication date: August 7, 2014
    Applicant: INTERMUNE, INC.
    Inventors: Sabine M. Pyles, Michael Cyr, Ramachandran Radhakrishnan
  • Patent number: 8790754
    Abstract: A method of preparing a metal nitride and/or metal oxynitride particulate material includes heating a stoichiometric mixture of a metal compound and urea at a temperature of about 400-1000° C. for a predetermined time period in the presence of argon, nitrogen, or both. The particulate material produced includes nanoparticles, nanotubes, microparticles, powder, or a combination thereof.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: July 29, 2014
    Assignee: Materials Modification, Inc.
    Inventors: Krishnaswamy Kasthuri Rangan, Cheryl Renee Verdecchio, Ramachandran Radhakrishnan, Tirumalai Srinivas Sudarshan
  • Patent number: 8753679
    Abstract: A capsule formulation of pirfenidone is provided that includes pharmaceutically acceptable excipients. In one embodiment, this capsule formulation is capable of sustaining desirable pharmacokinetic responses in a patient. Further provided are methods of treating fibrotic conditions and other cytokine-mediated disorders by administering pirfenidone capsules of such formulation to a patient in need.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: June 17, 2014
    Assignee: Intermune, Inc.
    Inventors: Ramachandran Radhakrishnan, Ronald Vladyka, Kenneth Sultzbaugh
  • Patent number: 8741936
    Abstract: Disclosed are methods of modulating a stress activated protein kinase (SAPK) system with an active compound, wherein the active compound exhibits low potency for inhibition of at least one p38 MAPK; and wherein the contacting is conducted at a SAPK-modulating concentration that is at a low percentage inhibitory concentration for inhibition of the at least one p38 MAPK by the compound. Also disclosed are derivatives of pirfenidone. These derivatives can modulate a stress activated protein kinase (SAPK) system.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: June 3, 2014
    Assignee: Intermune, Inc.
    Inventors: Lawrence M. Blatt, Scott D. Seiwert, Leonid Beigelman, Ramachandran Radhakrishnan, Karl Kossen, Vladimir Serebryany
  • Publication number: 20130345430
    Abstract: A process for synthesizing pirfenidone from bromobenzene having less than about 0.15% by weight dibromobenze is disclosed. Also disclosed are processes of synthesizing pirfenidone without using ethyl acetate or n-butanol, and pirfenidone having controlled levels of ethyl acetate, n-butanol, di(5-methyl-2-pyridinone)benzenes, and other impurities having specified retention times. Also disclosed are formulated dosage forms including the disclosed pirfenidone.
    Type: Application
    Filed: July 22, 2013
    Publication date: December 26, 2013
    Applicant: INTERMUNE, INC.
    Inventors: Sabine M. Pyles, Michael Cyr, Ramachandran Radhakrishnan
  • Patent number: 8536355
    Abstract: Disclosed herein is a process for producing Dialkyl substituted fatty acids amides. More particularly the present invention provides a process for producing pure form of N,N-dimethylamide of aliphatic carboxylic acids, wherein the aliphatic carboxylic acid is Octanoic Acid and Hexanoic Acid. The disclosed process comprises condensing Alkanoyl Chloride with dilute solution of Dialkylamine at a temperature of about 8 to 12° C. and isolating the crude by salting out the reaction mixture employing Sodium Chloride and distilling the same under vacuum.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: September 17, 2013
    Inventors: Ramachandran Radhakrishnan, Sisir K. Adhikari
  • Patent number: 8519140
    Abstract: A process for synthesizing pirfenidone from bromobenzene having less than about 0.15% by weight dibromobenze is disclosed. Also disclosed are processes of synthesizing pirfenidone without using ethyl acetate or n-butanol, and pirfenidone having controlled levels of ethyl acetate, n-butanol, di(5-methyl-2-pyridinone)benzenes, and other impurities having specified retention times. Also disclosed are formulated dosage forms including the disclosed pirfenidone.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: August 27, 2013
    Assignee: Intermune, Inc.
    Inventors: Ramachandran Radhakrishnan, Michael Cyr, Sabine M. Pyles
  • Patent number: 8383150
    Abstract: A capsule formulation of pirfenidone is provided that includes pharmaceutically acceptable excipients. In one embodiment, this capsule formulation is capable of sustaining desirable pharmacokinetic responses in a patient. Further provided are methods of treating fibrotic conditions and other cytokine-mediated disorders by administering pirfenidone capsules of such formulation to a patient in need.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: February 26, 2013
    Assignee: Intermune, Inc.
    Inventors: Ramachandran Radhakrishnan, Ronald Vladyka, Kenneth Sultzbaugh