Patents by Inventor Darpan Pandya

Darpan Pandya 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).

  • PROCESSES FOR SYNTHESIS OF ALPHA-EMITTING RADIOPHARMACEUTICALS
    Publication number: 20230382819
    Abstract: The present disclosure provides processes for the preparation of alpha emitting radiopharmaceutical compositions, in particular DOTATATE complexes of alpha emitting radionuclides, as well as use of such prepared compositions in the treatment of cancers.
    Type: Application
    Filed: October 14, 2021
    Publication date: November 30, 2023
    Inventors: David L. MORSE, Thaddeus J. WADAS, Darpan PANDYA, Narges TAFRESHI, Mikalai BUDZEVICH
  • Tetraaza macrocyclic compound, preparation method thereof and use thereof
    Patent number: 9353120
    Abstract: Provided are a cross-bridged tetraaza macrocyclic compound of a novel structure that can be used, for example, as a contrast agent for diagnostic imaging or a radiopharmaceutical and a method for preparing the same. The disclosed tetraaza macrocyclic compound is able to form a stable metal complex at a lower temperature and allows easy conjugation with a bioactive substance or a chemically active substance, when compared to the existing cross-bridged tetraaza macrocyclic compounds.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: May 31, 2016
    Assignee: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Jeong Soo Yoo, Darpan Pandya
  • NOVEL TETRAAZA MACROCYCLIC COMPOUND, PREPARATION METHOD THEREOF AND USE THEREOF
    Publication number: 20150291608
    Abstract: Provided are a cross-bridged tetraaza macrocyclic compound of a novel structure that can be used, for example, as a contrast agent for diagnostic imaging or a radiopharmaceutical and a method for preparing the same. The disclosed tetraaza macrocyclic compound is able to form a stable metal complex at a lower temperature and allows easy conjugation with a bioactive substance or a chemically active substance, when compared to the existing cross-bridged tetraaza macrocyclic compounds.
    Type: Application
    Filed: March 12, 2015
    Publication date: October 15, 2015
    Inventors: Jeong Soo YOO, Darpan PANDYA
  • Tetraaza macrocyclic compound, preparation method thereof and use thereof
    Patent number: 9061078
    Abstract: Provided are a cross-bridged tetraaza macrocyclic compound of a novel structure that can be used, for example, as a contrast agent for diagnostic imaging or a radiopharmaceutical and a method for preparing the same. The disclosed tetraaza macrocyclic compound is able to form a stable metal complex at a lower temperature and allows easy conjugation with a bioactive substance or a chemically active substance, when compared to the existing cross-bridged tetraaza macrocyclic compounds.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: June 23, 2015
    Assignee: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Jeong Soo Yoo, Darpan Pandya
  • NOVEL TETRAAZA MACROCYCLIC COMPOUND, PREPARATION METHOD THEREOF AND USE THEREOF
    Publication number: 20120219495
    Abstract: Provided are a cross-bridged tetraaza macrocyclic compound of a novel structure that can be used, for example, as a contrast agent for diagnostic imaging or a radiopharmaceutical and a method for preparing the same. The disclosed tetraaza macrocyclic compound is able to form a stable metal complex at a lower temperature and allows easy conjugation with a bioactive substance or a chemically active substance, when compared to the existing cross-bridged tetraaza macrocyclic compounds.
    Type: Application
    Filed: September 9, 2010
    Publication date: August 30, 2012
    Applicant: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Jeong Soo Yoo, Darpan Pandya
  • One-pot process for the preparation of antiemetic agent, 1,2,3,9-tetrahydro-9-methyl-3[(2-methyl)-1H-imidazole-1-yl)methyl]-4H-carbazol-4-O
    Patent number: 7547791
    Abstract: A one-pot industrial process for preparing 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazole-1-yl)methyl]-4H-carbazol-4-one of Formula-(I) from 1,2,3,9-tetrahydro-9-methyl-4H-carbazol-4-one of Formula-(IV) involves reaction of Formula (IV) with HNR1R2 salt and paraformaldehyde, where R1,R2 are independently alkyl groups or together forms a cyclic alkyl group, in a solvent system of acetic acid and hydrocarbon solvent to form a crude mixture of intermediate compounds of Formula (III) and (VIII), which is converted to ondansetron (Formula (I)) without isolation by reaction with 2methyimidazole in a suitable solvent system in the same pot.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: June 16, 2009
    Assignee: IPCA Laboratories Ltd.
    Inventors: Ashok Kumar, Dharmendra Singh, Atul Jadhav, Navinchandra Darpan Pandya, Shankar Deepak Panmand, Ramsingh Gajendrasingh Thakur