Patents by Inventor Otto Phanstiel

Otto Phanstiel 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: 11905268
    Abstract: Various embodiments relate to compounds and methods useful for preventing or treating a cancer in a subject. The method may include administering to a subject a composition according to any of the embodiments described herein in an amount effective to inhibit metastatic activity or tumor growth in the subject.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: February 20, 2024
    Assignees: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC., SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE
    Inventors: Otto Phanstiel, IV, Holly Moots, Patrick Maloney, Paul Hershberger, Satyamaheshwar Peddibhotla
  • Patent number: 11820726
    Abstract: Motuporamine agents having antimicrobial activity and uses thereof.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: November 21, 2023
    Assignees: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC., INSERM TRANSFERT, S.A.
    Inventors: Otto Phanstiel, IV, Jean-Michel Brunel
  • Patent number: 11752113
    Abstract: Disclosed herein are polyamine transport inhibitors (PTI) and methods of use as antivirals. Disclosed PTI compounds are useful as treatments for viral infections or can be used as prophylactic agents that protect high risk individuals from becoming infected by the virus. The disclosed PTI compounds can be used alone or in combination with other agents (or other antivirals) to improve patient outcomes such as DFMO (or Remdesivir).
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: September 12, 2023
    Assignees: University of Central Florida Research Foundation, Inc., Boston University
    Inventors: Otto Phanstiel, IV, John Connor
  • Publication number: 20230057608
    Abstract: Disclosed embodiments relate to improved methods for the synthesis of activated fumarate intermediates and their use in chemical synthesis. Disclosed embodiments describe the synthesis of activated fumarate esters including those derived from activating groups including: 4-nitrophenyl, diphenylphophoryl azide, pivaloyl chloride, chlorosulfonyl isocyanate, p-nitrophenol, MEF, trifluoroacetyl and chlorine, for example, ethyl fumaroyl chloride and the subsequent use of the activated ester in situ. Further embodiments describe the improved synthesis of substituted aminoalkyl-diketopiperazines from unisolated and unpurified intermediates allowing for improved yields and reactor throughput.
    Type: Application
    Filed: October 24, 2022
    Publication date: February 23, 2023
    Inventors: Kelly Sullivan Kraft, John J. Freeman, Paul Serwinski, Vincent Pavia, Otto Phanstiel, Navneet Kaur
  • Patent number: 11529322
    Abstract: Disclosed herein are novel spermine prodrugs and methods of use for treating subjects exhibiting symptoms of a low spermine disorder. Also disclosed are methods of synthesizing spermine prodrugs. Compositions containing spermine prodrugs are also disclosed.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: December 20, 2022
    Assignee: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.
    Inventors: Otto Phanstiel, IV, Mukund Pandurang Tantak, Houssine Ikhlef
  • Patent number: 11479535
    Abstract: Disclosed embodiments relate to improved methods for the synthesis of activated fumarate intermediates and their use in chemical synthesis. Disclosed embodiments describe the synthesis of activated fumarate esters including those derived from activating groups including: 4-nitrophenyl, diphenylphophoryl azide, pivaloyl chloride, chlorosulfonyl isocyanate, p-nitrophenol, MEF, trifluoroacetyl and chlorine, for example, ethyl fumaroyl chloride and the subsequent use of the activated ester in situ. Further embodiments describe the improved synthesis of substituted aminoalkyl-diketopiperazines from unisolated and unpurified intermediates allowing for improved yields and reactor throughput.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: October 25, 2022
    Assignee: MANNKIND, CORP.
    Inventors: Kelly Sullivan Kraft, John J. Freeman, Paul Serwinski, Vincent Pavia, Otto Phanstiel, Navneet Kaur
  • Publication number: 20220289687
    Abstract: A method for the synthesis of N-protected 3,6-aminoalkyl-2,5-diketopiperazines is provided. The method includes obtaining a cyclic ?-N protected active amino ester and adding it to a mixture of an amine catalyst in an organic solvent.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Inventors: John J. Freeman, Otto Phanstiel, William Elliot Bay, Kelly Sullivan Kraft
  • Patent number: 11345668
    Abstract: A method for the synthesis of N-protected 3,6-aminoalkyl-2,5-diketopiperazines is provided. The method includes obtaining a cyclic ?-N protected active amino ester and adding it to a mixture of an amine catalyst in an organic solvent.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: May 31, 2022
    Assignee: MANNKIND CORP.
    Inventors: John J. Freeman, Otto Phanstiel, William Elliot Bay, Kelly Sullivan Kraft
  • Publication number: 20220071928
    Abstract: Disclosed herein are polyamine transport inhibitors (PTI) and methods of use as antivirals. Disclosed PTI compounds are useful as treatments for viral infections or can be used as prophylactic agents that protect high risk individuals from becoming infected by the virus. The disclosed PTI compounds can be used alone or in combination with other agents (or other antivirals) to improve patient outcomes such as DFMO (or Remdesivir).
    Type: Application
    Filed: September 8, 2021
    Publication date: March 10, 2022
    Inventors: Otto PHANSTIEL, IV, John CONNOR
  • Publication number: 20220064133
    Abstract: A method and apparatus for transferring an image of predetermined length onto a substrate by selective energization of a row of printing elements in a printhead of a printing apparatus. Operational characteristics of the printing apparatus are determined, and the image is rendered such that the number of rows of the pixels in the rendered image is no greater than the maximum number of rows of pixels which can be printed in the length of the image given the operational characteristics of the printing apparatus. Additional rows of pixels may be printed between pairs of rows of printed which correspond to consecutive rows in the rendered image. The pixel content of each additional row is a function of the pixel content of the adjacent pairs of rows.
    Type: Application
    Filed: August 12, 2019
    Publication date: March 3, 2022
    Inventors: Otto PHANSTIEL, IV, Holly MOOTS, Patrick MALONEY, Paul HERSHBERGER, Satyamaheshwar PEDDIBHOTLA
  • Publication number: 20210317090
    Abstract: Novel compounds are described which decrease the intracellular levels of leucine and methionine. Treatment with these amino acid depletion agents affects many metabolic and life processes which rely upon methionine, leucine and their derivatives. Methionine depletion not only inhibits protein synthesis, but also polyamine biosynthesis and significantly reduces intracellular pools of the native polyamines, spermidine and spermine. Since methionine restriction has been shown to mimic caloric restriction in life extension studies across multiple species, these compounds are also expected to extend lifespan by limiting methionine supply.
    Type: Application
    Filed: August 30, 2019
    Publication date: October 14, 2021
    Inventors: Otto PHANSTIEL, IV, Chelsea MASSARO, Jenna THOMAS, Adel NEFZI
  • Publication number: 20210114994
    Abstract: Disclosed embodiments relate to improved methods for the synthesis of activated fumarate intermediates and their use in chemical synthesis. Disclosed embodiments describe the synthesis of activated fumarate esters including those derived from activating groups including: 4-nitrophenyl, diphenylphophoryl azide, pivaloyl chloride, chlorosulfonyl isocyanate, p-nitrophenol, MEF, trifluoroacetyl and chlorine, for example, ethyl fumaroyl chloride and the subsequent use of the activated ester in situ. Further embodiments describe the improved synthesis of substituted aminoalkyl-diketopiperazines from unisolated and unpurified intermediates allowing for improved yields and reactor throughput.
    Type: Application
    Filed: December 7, 2020
    Publication date: April 22, 2021
    Inventors: Kelly Sullivan Kraft, John J. Freeman, Paul Serwinski, Vincent Pavia, Otto Phanstiel, Navneet Kaur
  • Publication number: 20210107880
    Abstract: A method for the synthesis of N-protected 3,6-am inoalkyl-2,5-diketopiperazines is provided. The method includes obtaining a cyclic ?-N protected active amino ester and adding it to a mixture of an amine catalyst in an organic solvent.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Inventors: John J. Freeman, Otto Phanstiel, William Elliot Bay, Kelly Sullivan Kraft
  • Publication number: 20210002206
    Abstract: Motuporamine agents having antimicrobial activity and uses thereof.
    Type: Application
    Filed: July 13, 2020
    Publication date: January 7, 2021
    Inventors: Otto PHANSTIEL, IV, Jean-Michel BRUNEL
  • Publication number: 20210000769
    Abstract: Disclosed herein are novel spermine prodrugs and methods of use for treating subjects exhibiting symptoms of a low spermine disorder. Also disclosed are methods of synthesizing spermine prodrugs. Compositions containing spermine prodrugs are also disclosed.
    Type: Application
    Filed: July 7, 2020
    Publication date: January 7, 2021
    Inventors: Otto PHANSTIEL, IV, Mukund Pandurang TANTAK, Houssine IKHLEF
  • Patent number: 10870628
    Abstract: A method for the synthesis of N-protected 3,6-aminoalkyl-2,5-diketopiperazines is provided. The method includes obtaining a cyclic ?-N protected active amino ester and adding it to a mixture of an amine catalyst in an organic solvent.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: December 22, 2020
    Assignee: MannKind, Corp.
    Inventors: John J. Freeman, Otto Phanstiel, William Elliot Bay, Kelly Sullivan Kraft
  • Patent number: 10858325
    Abstract: Disclosed embodiments relate to improved methods for the synthesis of activated fumarate intermediates and their use in chemical synthesis. Disclosed embodiments describe the synthesis of activated fumarate esters including those derived from activating groups including: 4-nitrophenyl, diphenylphophoryl azide, pivaloyl chloride, chlorosulfonyl isocyanate, p-nitrophenol, MEF, trifluoroacetyl and chlorine, for example, ethyl fumaroyl chloride and the subsequent use of the activated ester in situ. Further embodiments describe the improved synthesis of substituted aminoalkyl-diketopiperazines from unisolated and unpurified intermediates allowing for improved yields and reactor throughput.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: December 8, 2020
    Assignee: MANNKIND, CORP.
    Inventors: Kelly Sullivan Kraft, John J. Freeman, Paul Serwinski, Vincent Pavia, Otto Phanstiel, Navneet Kaur
  • Patent number: 10710957
    Abstract: Motuporamine agents having antimicrobial activity and uses thereof.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: July 14, 2020
    Assignees: University of Central Florida Research Foundation, Inc., Inserm Transfert, S.A.
    Inventors: Otto Phanstiel, IV, Jean-Michel Brunel
  • Publication number: 20200199082
    Abstract: A method for the synthesis of N-protected 3,6-aminoalkyl-2,5-diketopiperazines is provided. The method includes obtaining a cyclic ?-N protected active amino ester and adding it to a mixture of an amine catalyst in an organic solvent.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: John J. Freeman, Otto Phanstiel, William Elliot Bay, Kelly Sullivan Kraft
  • Patent number: 10577331
    Abstract: A method for the synthesis of N-protected 3,6-aminoalkyl-2,5-diketopiperazines is provided. The method includes obtaining a cyclic ?-N protected active amino ester and adding it to a mixture of an amine catalyst in an organic solvent.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: March 3, 2020
    Assignee: MANNKIND, CORP.
    Inventors: John J. Freeman, Otto Phanstiel, William Elliot Bay, Kelly Sullivan Kraft