Patents by Inventor Jayanta Bhattacharyya

Jayanta Bhattacharyya 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: 20230390108
    Abstract: An ocular drug delivery device is disclosed. The ocular drug delivery device includes a top portion having an opening adapted to receive an injection needle to deliver drug into an eye. Further, the ocular drug delivery device includes a bottom portion extending from the top portion. The bottom portion includes a cavity to accommodate a valve. The valve is adapted to be pushed by the injection needle. Further, the ocular drug delivery device includes a securing portion attached to the top portion. The securing portion is adapted to secure the ocular drug delivery to the eye.
    Type: Application
    Filed: September 2, 2020
    Publication date: December 7, 2023
    Inventors: Dinesh KALYANASUNDARAM, Rohan CHAWLA, Jayanta BHATTACHARYYA, Lata KAUSHIK
  • Patent number: 11458205
    Abstract: Provided herein are conjugates including a polypeptide and one or more drug molecules. The polypeptide includes one or more charged motifs, and may further include one or more uncharged motifs. The conjugates may be used to effectively deliver the drug molecule to a subject.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: October 4, 2022
    Assignee: Duke University
    Inventors: Ashutosh Chilkoti, Samagya Banskota, Parisa Yousefpour, Jayanta Bhattacharyya
  • Patent number: 11135301
    Abstract: Described herein are compositions that may include a triblock self-assembling polypeptide and a molecule attached to the polypeptide. Also described herein are methods of making the compositions and methods of using the compositions.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: October 5, 2021
    Assignee: Duke University
    Inventors: Ashutosh Chilkoti, Jayanta Bhattacharyya
  • Publication number: 20200164082
    Abstract: Described herein are compositions that may include a triblock self-assembling polypeptide and a molecule attached to the polypeptide. Also described herein are methods of making the compositions and methods of using the compositions.
    Type: Application
    Filed: September 14, 2017
    Publication date: May 28, 2020
    Inventors: Ashutosh Chilkoti, Jayanta Bhattacharyya
  • Publication number: 20190083638
    Abstract: Disclosed herein are conjugates of a therapeutic compound and polypeptides, such as a conjugate of niclosamide and an elastin-like polypeptide. These conjugates may form nanoparticles through self-assembly, which improve the solubility, bioavailability, and pharmacokinetic profiles of the therapeutic compound. Also disclosed are methods for treating cancer, parasite infection, bacterial infection, viral infection, metabolic diseases, Type II diabetes, NASH, NAFLD, artery constriction, endometriosis, neuropathic pain, rheumatoid arthritis, sclerodermatous graft-versus-host disease, and systemic sclerosis.
    Type: Application
    Filed: July 25, 2018
    Publication date: March 21, 2019
    Inventors: Wei Chen, Jayanta Bhattacharyya, Xiu-Rong Ren, Robert A. Mook, Jiangbo Wang, Ivan Spasojevic, Richard Premont, Xinghai Li, Ashutosh Chilkoti
  • Patent number: 10227589
    Abstract: Liposomal compositions comprising of liposomes of guanidinylated cationic amphiphiles as the main lipid and cholesterol/1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC)/aminopropyl polyethyleneglycol carbamyl-distearoylphosphatidyl-ethanolamine (DSPE-peg-NH2) as co-lipids are described. These liposomal compositions containing encapsulated or electrostatically complexed therapeutic small interfering RNAs (siRNAs) against Cdc20, a key cell cycle regulator, inhibit solid tumor growth and melanoma tumor growth on lung in C57BL/6J mice.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: March 12, 2019
    Assignee: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Anubhab Mukherjee, Jayanta Bhattacharyya, Arabinda Chaudhuri
  • Publication number: 20180228908
    Abstract: Provided herein are conjugates including a polypeptide and one or more drug molecules. The polypeptide includes one or more charged motifs, and may further include one or more uncharged motifs. The conjugates may be used to effectively deliver the drug molecule to a subject.
    Type: Application
    Filed: August 4, 2016
    Publication date: August 16, 2018
    Inventors: Ashutosh Chilkoti, Samagya Banskota, Parisa Yousefpour, Jayanta Bhattacharyya
  • Publication number: 20160010088
    Abstract: Liposomal compositions comprising of liposomes of guanidinylated cationic amphiphiles as the main lipid and cholesterol/1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC)/aminopropyl polyethyleneglycol carbamyl-distearoylphosphatidyl-ethanolamine (DSPE-peg-NH2) as co-lipids are described. These liposomal compositions containing encapsulated or electrostatically complexed therapeutic small interfering RNAs (siRNAs) against Cdc20, a key cell cycle regulator, inhibit solid tumor growth and melanoma tumor growth on lung in C57BL/6J mice.
    Type: Application
    Filed: January 28, 2013
    Publication date: January 14, 2016
    Inventors: Anubhab MUKHERJEE, Jayanta BHATTACHARYYA, Arabinda CHAUDHURI
  • Publication number: 20120107389
    Abstract: The present invention provides method and pharmaceutical composition for efficient delivery of siRNA (small interfering ribonucleic acids) into cultured mammalian cells. In addition, the present invention provides methods and compositions for knocking down the expression of a specific target gene by treating cells with the formulations comprising cationic amphiphile, a neutral colipid and a small RNA molecule. We demonstrate that our method delivers siRNA efficaciously into animal cells for the purpose of RNA interference. The area of medical science that is likely to benefit most from the present invention is RNAi therapeutics.
    Type: Application
    Filed: March 19, 2010
    Publication date: May 3, 2012
    Inventors: Jayanta Bhattacharyya, Arabinda Chaudhuri
  • Patent number: 7081287
    Abstract: A high performance thermoplastic hose useful as a power steering hose, the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine-containing polyolefin such as chlorinated polyethylene, chlorinated polypropylene, chlorinated copolymers containing ethylene and propylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene, chlorosulfonated copolymers of ethylene and propylene or mixture thereof, is disclosed. Also disclosed are a method for manufacturing the high performance thermoplastic hose, and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300° F.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: July 25, 2006
    Assignee: Dayco Products, LLC
    Inventor: Jayanta Bhattacharyya
  • Patent number: 6949277
    Abstract: A high performance thermoplastic hose useful as a power steering hose, the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine-containing polyolefin such as chlorinated polyethylene, chlorinated polypropylene, chlorinated copolymers containing ethylene and propylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene, chlorosulfonated copolymers of ethylene and propylene or mixture thereof, is disclosed. Also disclosed are a method for manufacturing the high performance thermoplastic hose, and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300° F.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: September 27, 2005
    Assignee: Dayco Products, LLC
    Inventor: Jayanta Bhattacharyya
  • Patent number: 6764632
    Abstract: An energy attenuation restrictor device for use in an energy attenuation apparatus for a conduit adapted to convey a liquid under pressure, particularly, in the power steering system of a vehicle wherein said energy attenuation restrictor device includes a tuning cable composed of a first organic polymer and a fitting member composed of a second organic polymer, and a method for molding the energy attenuation restrictor device are described.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: July 20, 2004
    Assignee: Dayco Products, LLC
    Inventors: Jayanta Bhattacharyya, Terence E. Skiba
  • Publication number: 20040058110
    Abstract: A high performance thermoplastic hose useful as a power steering hose, the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine-containing polyolefin such as chlorinated polyethylene, chlorinated polypropylene, chlorinated copolymers containing ethylene and propylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene, chlorosulfonated copolymers of ethylene and propylene or mixture thereof, is disclosed. Also disclosed are a method for manufacturing the high performance thermoplastic hose, and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300° F.
    Type: Application
    Filed: September 23, 2003
    Publication date: March 25, 2004
    Inventor: Jayanta Bhattacharyya
  • Publication number: 20030193115
    Abstract: An energy attenuation restrictor device for use in an energy attenuation apparatus for a conduit adapted to convey a liquid under pressure, particularly, in the power steering system of a vehicle wherein said energy attenuation restrictor device includes a tuning cable composed of a first organic polymer and a fitting member composed of a second organic polymer, and a method for molding the energy attenuation restrictor device are described.
    Type: Application
    Filed: May 14, 2003
    Publication date: October 16, 2003
    Inventors: Jayanta Bhattacharyya, Terence E. Skiba
  • Patent number: 6623822
    Abstract: A high performance thermoplastic hose useful as a power steering hose, the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine-containing polyolefin such as chlorinated polyethylene, chlorinated polypropylene, chlorinated copolymers containing ethylene and propylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene, chlorosulfonated copolymers of ethylene and propylene or mixture thereof, is disclosed. Also disclosed are a method for manufacturing the high performance thermoplastic hose, and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300° F.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: September 23, 2003
    Assignee: Dayco Products, LLC
    Inventor: Jayanta Bhattacharyya
  • Patent number: 6591870
    Abstract: An energy attenuation restrictor device for use in an energy attenuation apparatus for a conduit adapted to convey a liquid under pressure, particularly, in the power steering system of a vehicle wherein said energy attenuation restrictor device includes a tuning cable composed of a first organic polymer and a fitting member composed of a second organic polymer, and a method for molding the energy attenuation restrictor device are described.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: July 15, 2003
    Assignee: Dayco Products, LLC
    Inventors: Jayanta Bhattacharyya, Terence E. Skiba
  • Publication number: 20030039784
    Abstract: A high performance thermoplastic hose useful as a power steering hose, the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine-containing polyolefin such as chlorinated polyethylene, chlorinated polypropylene, chlorinated copolymers containing ethylene and propylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene, chlorosulfonated copolymers of ethylene and propylene or mixture thereof, is disclosed. Also disclosed are a method for manufacturing the high performance thermoplastic hose, and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300° F.
    Type: Application
    Filed: October 2, 2002
    Publication date: February 27, 2003
    Inventor: Jayanta Bhattacharyya
  • Patent number: 6524673
    Abstract: A high performance thermoplastic hose useful as a power steering hose, the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine-containing polyolefin such as chlorinated polyethylene, chlorinated polypropylene, chlorinated copolymers containing ethylene and propylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene, chlorosulfonated copolymers of ethylene and propylene or mixture thereof, is disclosed. Also disclosed are a method for manufacturing the high performance thermoplastic hose, and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300° F.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: February 25, 2003
    Assignee: JPMorgan Chase Bank
    Inventor: Jayanta Bhattacharyya
  • Publication number: 20030026931
    Abstract: A high performance thermoplastic hose useful as a power steering hose, the high performance thermoplastic hose comprising a high performance engineering thermoplastic such as polyurethane and a chlorine-containing polyolefin such as chlorinated polyethylene, chlorinated polypropylene, chlorinated copolymers containing ethylene and propylene, chlorosulfonated polyethylene, chlorosulfonated polypropylene, chlorosulfonated copolymers of ethylene and propylene or mixture thereof, is disclosed. Also disclosed are a method for manufacturing the high performance thermoplastic hose, and a thermoplastic vulcanizate capable of resisting chemical attack and withstanding temperatures up to about 300° F.
    Type: Application
    Filed: October 2, 2002
    Publication date: February 6, 2003
    Inventor: Jayanta Bhattacharyya
  • Patent number: 6142189
    Abstract: A method for manufacturing a crosslinked thermoplastic hose capable of withstanding high temperatures and having chemical, abrasion, and tear resistant characteristics, for use in a high performance hose, comprising adding to an extruder a mixture comprising a thermoplastic polymer and a crosslinking agent; wherein the crosslinked hose is formed in the absence of a mandrel is disclosed.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: November 7, 2000
    Assignee: Dayco Products, Inc.
    Inventor: Jayanta Bhattacharyya