Patents Examined by Sydney Van Druff
  • Patent number: 12673109
    Abstract: The present disclosure provides novel polypeptide-therapeutic compound or hormone-therapeutic compound conjugates using cleavable or non-cleavable linkers, whereby the polypeptide or hormone serves to target specific cells using receptor expression on the targeted cell to bind the ligand (polypeptide or hormone) carrying the therapeutic compound unlike antibody drug conjugates. Upon binding, the ligand and the therapeutic compound (multiples of the therapeutic compound in some embodiments) enter the cell by receptor-mediated endocytosis, and release drugs conjugated to the ligand by linkers, to interact with intracellular components to enhance, restore, or block a signal transduction process. The ligands for the polypeptide-therapeutic compound or hormone-therapeutic compound conjugates include, but are not limited to: cytokines, growth factors and hormones among other proteins with corresponding cell surface specific receptors.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: July 7, 2026
    Assignee: IL-2RX
    Inventors: Luis R.B. Soares, Clarence Ray Hurt
  • Patent number: 12667625
    Abstract: The present invention relates to antibody-drug conjugates, wherein the antibody specifically binds to TfR, the transferrin receptor, and wherein the drug is preferably chosen among a cytotoxic drug. Such antibody-drug conjugates are useful in particular in treating proliferative diseases including cancers, such as lymphoma or leukaemia.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: June 30, 2026
    Assignee: INATHERYS
    Inventors: Pierre Launay, Hervé Souchet, Coralie Belanger
  • Patent number: 12642864
    Abstract: Provided herein are novel antibody-agent conjugates formed by the introduction of methionine residues to antibody scaffold light or heavy chains at select positions, followed by conjugation of the agent to the methionine, for example, by oxaziridine chemistries. Methionine substitutions at the targeted positions enable highly efficient functionalization to form very stable conjugates, including conjugates suitable for in vivo use. The positions were identified for the trastuzumab and other related scaffolds which can be engineered for affinity to any target antigen. The conjugates include ADCs and detections agents. Also disclosed are novel oxaziridine reagents for conjugation to methionines in proteins.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: June 2, 2026
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: James Wells, Hai Tran, Susanna Elledge
  • Patent number: 12624109
    Abstract: A chemical compound and a method for treating cancer in a mammal. The chemical compound is a first Markusch structure of A-L1-PEG1-L2-PEG2-CL-X, a second Markusch structure of A-L1-PEG1-N3, or a third Markusch structure of A-L1-PEG1-OMethyl. A-L1-PEG is a targeting structure configured for targeting av integrins in cancer cells and does not include a standard multivalent nitrogen moiety. A is a structure that includes a standard carboxylic acid moiety. L1 and L2 are linking structures. PEG1 and PEG2 are polyethylene glycol structures having n2 and n4 monomer units, respectively, where n2 is in range of 5-72, n4 is in range of 0-67, and n2+n4 is in range of 20-72. CL is a cleavage linker linked to PEG2. X is a chemotherapy linked to CL. N3 is —N?N?N. In one embodiment, the method uses the first Markusch structure to treat the cancer.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: May 12, 2026
    Assignee: TargetThera LLC
    Inventors: Shaker A. Mousa, Bruce A. Hay
  • Patent number: 12611456
    Abstract: Provided herein are thiazole amide compounds (e.g., Formula (I)) for use in enhancing human immune response and/or as adjuvants in vaccines. The compounds described herein are used as enhancers of an immune response (e.g., innate and/or adaptive immune response), and are useful in treating and/or preventing a disease, as adjuvants in a vaccine for the disease, (e.g., proliferative disease, inflammatory disease, autoimmune disease, infectious disease, or chronic disease). Also provided in the present disclosure are compositions (e.g., pharmaceutical composition), kits, methods, and uses including or using compounds described herein.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: April 28, 2026
    Assignee: Children's Medical Center Corporation
    Inventors: David J. Dowling, Ofer Levy, Francesco Borriello
  • Patent number: 12605458
    Abstract: The present invention provides a special drug conjugate having a hydrophilic acidic stabilization junction. Compared with a conjugate having a lower drug loading, due to the introduction of the acidic stabilization junction, the conjugate in the present invention can also have a higher drug loading (that is, each targeted reagent has more hydrophilic drug junctions), keeps a desired PK property and has a same or better activity in a body.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: April 21, 2026
    Assignee: SYSTIMMUNE, INC.
    Inventors: Yi Zhu, Yiqian Wang, Jie Li, Shi Zhuo, Weili Wan
  • Patent number: 12600801
    Abstract: Single-domain antibodies that bind receptor tyrosine kinase (ROR1) are described. The single-domain antibodies can be used for multiple purposes including in research, imaging, diagnosis, and treatment of ROR1-related conditions. The disclosed single-domain antibodies can be used as anti-cancer therapeutics such as antibody-drug conjugates, multi-domain binding molecules, or recombinant receptors or can be used as cancer imaging/diagnostic agents.
    Type: Grant
    Filed: July 11, 2023
    Date of Patent: April 14, 2026
    Assignee: Fred Hutchinson Cancer Center
    Inventors: Jason Price, Colin E. Correnti, James M. Olson
  • Patent number: 12583910
    Abstract: Provided is an antibody or an antigen-binding fragment thereof, a T cell antigen receptor, an immune cell expressing the T cell antigen receptor (TCR), and a preparation method therefor and the use thereof. The TCR can specifically recognize corresponding pMHC complexes, activate TCR T cells, and produce high-level cytokines IFN?, IL2, TNF?, significantly kill target cells and prolong the life of tumor-bearing mice.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: March 24, 2026
    Assignees: TSINGHUA UNIVERSITY, BRISTAR IMMUNOTECH LIMITED
    Inventors: Lemei Jia, Hua Chen, Wenzhong Li, Jiasheng Wang, Lei Lei, Fang Liu, Xueqiang Zhao, Xin Lin
  • Patent number: 12497465
    Abstract: A pharmaceutical composition, wherein an antibody-drug conjugate in which a drug-linker represented by the following formula (wherein A represents a connecting position to an antibody) is conjugated to the antibody via a thioether bond, and a tubulin inhibitor are administered in combination, and a method of treatment, wherein the antibody-drug conjugate and the tubulin inhibitor are administered in combination to a subject.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: December 16, 2025
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Yusuke Ogitani, Chiaki Ishii, Yasuki Kamai, Kiyoshi Sugihara, Shotaro Nagase
  • Patent number: 12458688
    Abstract: The present invention relates to epitopes containing homocitrulline (Heit) that can be used as targets for cancer immunotherapy. The homocitrullinated T cell epitope has (i) a predicted binding score to MIC class II or class I of <30 using the online IEDB prediction program (http://www.iedb.org/) and (ii) at least 5 consecutive amino acids that form a spiral conformational structure. These modified peptides can be used as vaccines or as targets for T cell receptor (TCR) and adoptive T cell transfer therapies.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: November 4, 2025
    Assignee: Scancell Limited
    Inventors: Wei Xue, Katherine Wendy Cook, Linda Gillian Durrant, Victoria Anne Brentville
  • Patent number: 12428489
    Abstract: The present disclosure is directed to antibodies binding to PD-L2 and methods of using such antibodies to treat cancers, such as those that express or overexpress PD-L2.
    Type: Grant
    Filed: March 20, 2024
    Date of Patent: September 30, 2025
    Assignee: Board of Regents, The University of Texas System
    Inventors: Michael A. Curran, Ashvin R. Jaiswal, Dongxing Zha, Kui Voo, Carlo Toniatti, Bianka Prinz, Nadthakarn Boland
  • Patent number: 12421313
    Abstract: The present application relates to the field of biomedicine, and relates to a combined pharmaceutical composition for treating biliary tract tumor, liver cancer, triple negative breast cancer or lung cancer. The combined pharmaceutical composition comprises an anti-PD-L1 antibody and anlotinib, and has good anti-biliary tract tumor, liver cancer, triple negative breast cancer or lung cancer activity.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: September 23, 2025
    Assignees: Chia Tia Tianqing Pharmaceutical Group Co., Ltd., Nanjing Shunxin Pharmaceuticals Co., Ltd. of Chiatai Tianqing Pharmaceutical Group
    Inventors: Xiquan Zhang, Xunqiang Wang, Chaoqiang Yang, Yuchen Fan, Mengxue Fan, Fan Feng, Nan Su, Yao Liu, Chi Zhang, Hai Jiang
  • Patent number: 12391736
    Abstract: The present invention relates generally to peptide comprising two or more tumor specific neo open-reading-frame peptides (NOPs), and isolated nucleic acids encoding such peptides, and the uses of these peptides and/or isolated nucleic acids to produce cancer vaccines and the like. With the present invention it becomes possible to provide off-the-shelf cancer vaccines and the like within a short period of time and for potentially 30% of the total population of patients suffering from cancer.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: August 19, 2025
    Assignee: CureVac Netherlands B.V.
    Inventor: Ronald Hans Anton Plasterk
  • Patent number: 12377294
    Abstract: Described herein are novel anti-CD3 Folate antibodies and uses thereof in the treatment of diseases or conditions that would benefit from such.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: August 5, 2025
    Assignee: Ambrx, Inc.
    Inventors: Md Harunur Rashid, Ying Sun, Feng Tian, Sung Ju Moon
  • Patent number: 12377163
    Abstract: Disclosed by the present invention are an anti-B7H3 antibody-exatecan analog conjugate, a preparation method therefor and an anti-tumor medicinal use thereof.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: August 5, 2025
    Assignees: JIANGSU HANSOH PHARMACEUTICAL GROUP CO., LTD, SHANGHAI HANSOH BIOMEDICAL CO., LTD, CHANGZHOU HANSOH PHARMACEUTICAL CO., LTD
    Inventors: Hua Ying, Ling Zhang, Ting Zhang, Lei Zhang, Jianyan Xu, Weikang Tao
  • Patent number: 12377164
    Abstract: A conjugate comprising a protein or a peptide, a linker and an active agent, wherein the linker comprises the moiety of formula (III): (III) wherein two of A1, A2 and A3 are N and the other of A1, A2 and A3 is CH; X is selected from N, O and S, and Pep indicates where the moiety is linked to the protein or peptide, either directly or indirectly.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: August 5, 2025
    Assignees: ASTRAZENECA AB, CAMBRIDGE ENTERPRISE LIMITED
    Inventors: Jeremy Stephen Parker, Hannah Fiona Sore, David Robert Spring, Stephen James Walsh
  • Patent number: 12358999
    Abstract: A protein that recognizes a drug moiety of an antibody-drug conjugate in which a drug represented by the following formula is conjugated to an antibody via a linker, and a method for quantifying the concentration in plasma of an antibody-drug conjugate in a mammal to which the antibody-drug conjugate has been administered, by using the protein, and a method for identifying a tissue distribution of an antibody-drug conjugate.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: July 15, 2025
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Masako Soma, Hiroshi Kuga, Takeshi Masuda, Junko Kawamura, Hiromi Ishibashi, Satoru Yasuda
  • Patent number: 12296009
    Abstract: The invention relates to the field of immunotherapy, more in particular to a composition for use in the treatment of cancer. The invention also relates to a composition obtainable by such a method, such as a pharmaceutical composition. More in particular, the invention relates to an ex vivo method for obtaining a composition suitable for the treatment of cancer in a subject, comprising the steps of providing primary tumor cells derived from the subject, and ex vivo contacting the tumor cells with an inhibitor of a bromodomain and extra-terminal domain family member (BET inhibitor).
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 13, 2025
    Assignee: APGEN THERAPUETICS AB
    Inventors: Jeroen Melief, Rolf Valter Rikard Kiessling
  • Patent number: 12280045
    Abstract: The present invention is intended to provide a novel antitumor agent that shows marked antitumor effects with reduced side effects. The present invention relates to an antitumor agent characterized by coadministration of an acyl thiourea compound represented by general formula (I) or a salt thereof, and an immune checkpoint molecule regulator.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: April 22, 2025
    Assignee: TAIHO PHARMACEUTICAL CO., LTD.
    Inventor: Tomonori Haruma
  • Patent number: 12263210
    Abstract: The invention relates to an immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of sequences described in the specification.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: April 1, 2025
    Assignee: ENTEROME S.A.
    Inventors: Laurent Chene, Alban Mathieu, Matthieu Pichaud, Francesco Strozzi