Patents by Inventor Srinivasa Reddy Chaganti

Srinivasa Reddy Chaganti 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: 20230026468
    Abstract: An adhesive formulation such as a hot melt adhesive or a pressure sensitive adhesive is provided comprising 5 to 98% (by weight) biodegradable substantially non-crystalline mcl-PHA. The mcl-PHA may be cured with a peroxide curing agent. The adhesive formulation may include an additional biodegradable polymer, or a non-biodegradable thermoplastic elastomer. Hot melt adhesives comprising significant amounts of biodegradable mcl-PHA, waxes, and tackifiers are also provided.
    Type: Application
    Filed: September 16, 2022
    Publication date: January 26, 2023
    Inventors: Srinivasa Reddy Chaganti, Laura Morales-Gamez, Kevin O'Connor, Ramesh Babu Padamati
  • Publication number: 20210403775
    Abstract: An adhesive formulation such as a hot melt adhesive or a pressure sensitive adhesive is provided comprising 5 to 98% (by weight) biodegradable substantially non-crystalline mcl-PHA. The mcl-PHA may be cured with a peroxide curing agent. The adhesive formulation may include an additional biodegradable polymer, or a non-biodegradable thermoplastic elastomer. Hot melt adhesives comprising significant amounts of biodegradable mcl-PHA, waxes, and tackifiers are also provided.
    Type: Application
    Filed: November 8, 2018
    Publication date: December 30, 2021
    Inventors: Srinivasa Reddy Chaganti, Laura Morales-Gamez, Kevin O'Connor, Ramesh Babu Padamati
  • Patent number: 10040880
    Abstract: The present invention relates to an article consisting of or comprising a bidirectional shape-memory polymer (bSMP), the bSMP comprising: first phase-segregated domains (AD) having a first transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the first domains (AD), second phase-segregated domains (SD) having a second transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the second domains (SD), the second transition temperature (Tt,SD) being higher than the first transition temperature (Tt,AD), and covalent or physical bonds cross-linking the polymer chains of the bSMP, and in this way interconnecting the first and second domains (AD, SD), wherein the second phase-separated domains (SD) form a skeleton which is at least partially embedded in the first phase-segregated domains (AD), and wherein polymer chain segments of the bSMP forming the first domains (AD) are substantially orientated in a common direction, such tha
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 7, 2018
    Assignee: Helmholtz-Zentrum Geesthacht Zentrum fuer Material -und Kuestenforschung GmbH
    Inventors: Marc Behl, Karl Kratz, Ulrich Noechel, Tilman Sauter, Joerg Zotzmann, Srinivasa Reddy Chaganti, Andreas Lendlein
  • Patent number: 9950093
    Abstract: A fiber-reinforced hydrogel composite is provided. The composite includes a hydrogel and a fibrous component containing a plurality of fibers. Length of each of the plurality of fibers is less than about 1,000 ?m. A method of preparing a fiber-reinforced hydrogel composite is also provided. The method includes coating a hydrogel precursor solution on a substrate to form a hydrogel precursor film, depositing the plurality of fibers onto the hydrogel precursor film, and allowing the hydrogel precursor film to form a hydrogel film, thereby forming the fiber-reinforced hydrogel composite. A scaffold containing the fiber-reinforced composite, and a tissue repair method using the fiber-reinforced composite are also provided.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: April 24, 2018
    Assignees: National University of Singapore, Technion Research and Development Foundation LTD
    Inventors: Eyal Zussman, Srinivasa Reddy Chaganti, Jayarama Reddy Venugopal, Seeram Ramakrishna, Omri Regev
  • Patent number: 9919470
    Abstract: The present invention is directed to a method of preparing an actuator capable of being repeatedly and reversibly shifted between two freestanding shapes (A, B) under stress-free conditions upon varying a temperature between a temperature Tlow and a temperature Tsep.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: March 20, 2018
    Assignee: HELMHOLTZ-ZENTRUM GEESTHACHT ZENTRUM FUER MATERIAL- UND KUESTENFORSCHUNG GMBH
    Inventors: Marc Behl, Karl Kratz, Srinivasa Reddy Chaganti, Ulrich Noechel, Tilman Sauter, Andreas Lendlein
  • Publication number: 20160136876
    Abstract: The present invention is directed to a method of preparing an actuator capable of being repeatedly and reversibly shifted between two freestanding shapes (A, B) under stress-free conditions upon varying a temperature between a temperature Tlow and a temperature Tsep.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 19, 2016
    Inventors: Andreas LENDLEIN, Marc BEHL, Karl KRATZ, Srinivasa Reddy CHAGANTI, Ulrich NOECHEL, Tilman SAUTER
  • Publication number: 20150344600
    Abstract: The present invention relates to an article consisting of or comprising a bidirectional shape-memory polymer (bSMP), the bSMP comprising: first phase-segregated domains (AD) having a first transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the first domains (AD), second phase-segregated domains (SD) having a second transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the second domains (SD), the second transition temperature (Tt,SD) being higher than the first transition temperature (Tt,AD), and covalent or physical bonds cross-linking the polymer chains of the bSMP, and in this way interconnecting the first and second domains (AD, SD), wherein the second phase-separated domains (SD) form a skeleton which is at least partially embedded in the first phase-segregated domains (AD), and wherein polymer chain segments of the bSMP forming the first domains (AD) are substantially orientated in a common direction, such tha
    Type: Application
    Filed: December 20, 2013
    Publication date: December 3, 2015
    Applicant: Helmholtz-Zentrum Geesthacht Zentrum fuer Material -und Kuestenforschung GmbH
    Inventors: Marc Behl, Karl Kratz, Ulrich Noechel, Tilman Sauter, Joerg Zotzmann, Srinivasa Reddy Chaganti, Andreas Lendlein
  • Publication number: 20150105863
    Abstract: A fiber-reinforced hydrogel composite is provided. The composite includes a hydrogel and a fibrous component containing a plurality of fibers. Length of each of the plurality of fibers is less than about 1,000 ?m. A method of preparing a fiber-reinforced hydrogel composite is also provided. The method includes coating a hydrogel precursor solution on a substrate to form a hydrogel precursor film, depositing the plurality of fibers onto the hydrogel precursor film, and allowing the hydrogel precursor film to form a hydrogel film, (ii) thereby forming the fiber-reinforced hydrogel composite. A scaffold containing the fiber-reinforced composite, and a tissue repair method (iii) using the fiber-reinforced composite are also provided.
    Type: Application
    Filed: May 15, 2013
    Publication date: April 16, 2015
    Applicant: National University of Singapore
    Inventors: Eyal Zussman, Srinivasa Reddy Chaganti, Jayarama Reddy Venugopal, Seeram Ramakrishna, Omri Regev