Prosecution Insights
Last updated: April 19, 2026

Chugai Seiyaku Kabushiki Kaisha

51 pending office actions

Portfolio Summary

51
Total Pending OAs
17
Final Rejections
34
Non-Final OAs

Pending Office Actions

App #TitleExaminerArt UnitStatusFiled
18608369 ARYLAMIDE DERIVATIVE HAVING ANTITUMOR ACTIVITY O DELL, DAVID K 1621 Final Rejection Mar 18, 2024
18394091 ANTIGEN-BINDING MOLECULE AND COMBINATION RYAN, DOUGLAS CHARLES 1635 Non-Final OA Dec 22, 2023
18533622 METHODS AND COMPOSITIONS COMPRISING A BRAF INHIBITOR AND A MEK INHIBITOR NESTOR, DONNA MICHELLE 1627 Non-Final OA Dec 08, 2023
18567435 FORMULATION CONTAINING DIHYDROPYRIDAZINE-3,5-DIONE DERIVATIVE CHONG, YONG SOO 1623 Non-Final OA Dec 06, 2023
18557906 SYRINGE AKAR, SERKAN 3797 Non-Final OA Oct 27, 2023
18480730 ANTIGEN-BINDING MOLECULE PROMOTING DISAPPEARANCE OF ANTIGENS HAVING PLURALITY OF BIOLOGICAL ACTIVITIES LANDSMAN, ROBERT S 1647 Non-Final OA Oct 04, 2023
18458292 THERAPEUTIC AGENT FOR CANCER OF PATIENT WITH DECREASE IN RB1 FUNCTION USING MYT1 INHIBITOR AND CHEMOTHERAPEUTIC AGENT IN COMBINATION, AND TREATMENT METHOD THEREOF WILLIS, DOUGLAS M 1624 Non-Final OA Aug 30, 2023
18346975 ANTI-HLA-DQ2.5 ANTIBODY AND ITS USE FOR THE TREATMENT OF CELIAC DISEASE BRISTOL, LYNN ANNE 1643 Non-Final OA Jul 05, 2023
18268470 METHOD FOR SCREENING FOR CANDIDATE MOLECULE CAPABLE OF FORMING COMPLEX IN CONJUNCTION WITH PLURALITY OF TARGET MOLECULES PHAM, KHAI QUYNH TIEN 1684 Non-Final OA Jun 20, 2023
18266665 METHOD FOR MEASURING RELATIVE fu RATIO BY DYNAMIC ANALYSIS NGUYEN, NAM P 1678 Non-Final OA Jun 12, 2023
18034429 THERAPEUTIC AGENT FOR PERIPARTUM CARDIOMYOPATHY ALLEN, MARIANNE P 1647 Non-Final OA Apr 28, 2023
18023038 HETERODIMER FC POLYPEPTIDE MIDDLETON, DANAYA L 1674 Non-Final OA Feb 24, 2023
18023246 PHARMACEUTICAL COMPOSITION FOR PREVENTION AND/OR TREATMENT OF DIALYSIS PRURITUS CONTAINING IL-31 ANTAGONIST AS ACTIVE INGREDIENT LANDSMAN, ROBERT S 1647 Non-Final OA Feb 24, 2023
18022342 HETERODIMER FC POLYPEPTIDE MIDDLETON, DANAYA L 1674 Non-Final OA Feb 21, 2023
18020656 ONE-ARMED ANTIGEN-BINDING MOLECULES AND USES THEREOF BERHANE, SELAM 1675 Non-Final OA Feb 10, 2023
18018460 METHOD FOR MEASURING PHARMACOKINETICS OF AGENT LABELED WITH NON-RADIOACTIVE SUBSTANCE XU, XIAOYUN 1797 Non-Final OA Jan 27, 2023
18010611 SITE SPECIFIC NOTCH-ACTIVATING MOLECULE AND USES THEREOF CHASE, CAROL ANN 1646 Final Rejection Dec 15, 2022
18010615 ANTI-T CELL ANTIGEN-BINDING MOLECULE FOR USE IN COMBINATION WITH ANGIOGENESIS INHIBITOR AEDER, SEAN E 1642 Non-Final OA Dec 15, 2022
17928759 EFFICIENT PEPTIDE CONDENSATION METHOD FOR DIFFICULT SEQUENCES NIEBAUER, RONALD T 1658 Non-Final OA Nov 30, 2022
17926673 IMPROVED GRANZYME B VARIANT PATTERSON, SARAH COOPER 1675 Non-Final OA Nov 21, 2022
17914855 IMMUNE ACTIVATING MULTISPECIFIC ANTIGEN-BINDING MOLECULES AND USES THEREOF DRISCOLL, MAUREEN VARINA 1644 Non-Final OA Sep 27, 2022
17914432 METHOD FOR PRODUCING MULTISPECIFIC ANTIGEN-BINDING MOLECULES BRISTOL, LYNN ANNE 1643 Final Rejection Sep 26, 2022
17913899 CLAUDIN-6 TARGETING MULTISPECIFIC ANTIGEN-BINDING MOLECULES AND USES THEREOF NICKOL, GARY B 1643 Non-Final OA Sep 23, 2022
17933879 IMMUNOACTIVATING ANTIGEN-BINDING MOLECULE SKELDING, ZACHARY S 1644 Non-Final OA Sep 21, 2022
17897946 TREATMENTS FOR ATOPIC DERMATITIS JIANG, DONG 1674 Non-Final OA Aug 29, 2022
17896758 PREPARATION CONTAINING TETRACYCLIC COMPOUND AT HIGH DOSE FUBARA, BLESSING M 1613 Non-Final OA Aug 26, 2022
17797540 METHODS FOR PRODUCING AND/OR ENRICHING RECOMBINANT ANTIGEN-BINDING MOLECULES ROONEY, NORA MAUREEN 1641 Non-Final OA Aug 04, 2022
17788506 METHOD FOR SYNTHESIZING PEPTIDE COMPOUND REYNOLDS, FRED H 1658 Final Rejection Jun 23, 2022
17846672 Fc-gamma-RIIb-SPECIFIC Fc ANTIBODY DAHLE, CHUN WU 1641 Final Rejection Jun 22, 2022
17787809 COMPOSITION FOR TRANSLATION, AND METHOD FOR PRODUCING PEPTIDE GOMEZ RODRIGUEZ, JULIO WASHINGTON 1637 Non-Final OA Jun 21, 2022
17784735 SYSTEM FOR DETECTING EXTRACELLULAR PURINERGIC RECEPTOR LIGAND, AND NON-HUMAN ANIMAL HAVING THE SYSTEM INTRODUCED THEREINTO ROGERS, ERIC JASON 1638 Final Rejection Jun 13, 2022
17756756 PACKAGE OPENING SYSTEM AYALA, FERNANDO A 3724 Final Rejection Jun 01, 2022
17773733 CYCLIC PEPTIDE COMPOUND HAVING KRAS INHIBITORY ACTION SABILA, MERCY HELLEN 1654 Non-Final OA May 02, 2022
17312296 AMINO ACID HAVING FUNCTIONAL GROUP CAPABLE OF INTERMOLECULAR HYDROGEN BONDING, PEPTIDE COMPOUND CONTAINING SAME AND METHOD FOR PRODUCTION THEREOF D' AMBROSIO, THEA 1654 Final Rejection Apr 29, 2022
17768053 AN ANTIBODY, A PHARMACEUTICAL COMPOSITION, AND A METHOD HOWARD, ZACHARY C 1674 Final Rejection Apr 11, 2022
17767742 METHOD FOR SELECTING, ASSESSING, OR PRODUCING SODIUM LAURYL SULFATE AS RAW MATERIAL FOR PHARMACEUTICAL FORMULATION, OR FORMULATION OR THE LIKE CONTAINING SAME WEDDINGTON, KEVIN E 1629 Non-Final OA Apr 08, 2022
17716467 ANTIGEN-BINDING MOLECULE FOR PROMOTING CLEARANCE FROM PLASMA OF ANTIGEN COMPRISING SUGAR CHAIN RECEPTOR-BINDING DOMAIN LI, RUIXIANG 1674 Final Rejection Apr 08, 2022
17766280 INHIBITOR OF CELL PROLIFERATION IN OBINUTUZUMAB RESISTANT CD20-POSITIVE CANCER, AND MEDICINAL COMPOSITION, MEDICINE, PRODUCTION, METHOD FOR INHIBITING CELL PROLIFERATION, THERAPEUTIC METHOD, TYPE II ANTI-CD20 ANTIBODY, COMPOUNDS, COMBINATION OF SAME, ENHANCER AND INDUCER, EACH RELATING THERETO SANG, HONG 1646 Non-Final OA Apr 04, 2022
17763948 PHARMACEUTICAL COMPOSITION WHICH CAN BE USED FOR PREVENTION AND/OR TREATMENT OF ACQUIRED HEMOPHILIA A, AND PRODUCT COMPRISING SAID PHARMACEUTICAL COMPOSITION TAYLOR, LIA ELAN 1641 Final Rejection Mar 25, 2022
17555997 TREATMENT OF SKIN LESIONS AND PRURITUS IN PRURIGO NODULARIS PATIENTS JIANG, DONG 1674 Non-Final OA Dec 20, 2021
17616421 INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, PROGRAM, AND METHOD FOR PRODUCING ANTIGEN-BINDING MOLECULE OR PROTEIN PLAYER, ROBERT AUSTIN 1686 Non-Final OA Dec 03, 2021
17438496 ANTI-HLA-DQ2.5 ANTIBODY DIBRINO, MARIANNE 1641 Non-Final OA Sep 13, 2021
17417822 MUTATED tRNA FOR CODON EXPANSION RYAN, DOUGLAS CHARLES 1635 Non-Final OA Jun 24, 2021
17290439 HER2 S310F SPECIFIC ANTIGEN-BINDING MOLECULES FAUST, AMBER KATHLEEN 1643 Final Rejection Apr 30, 2021
17271239 ANTIBODY HALF-MOLECULE, AND METHOD FOR INHIBITING HOMODIMER FORMATION OF ANTIBODY HALF-MOLECULE DAHLE, CHUN WU 1641 Final Rejection Feb 25, 2021
17266029 METHOD FOR CULTURING CANCER TISSUE OR TISSUE ANALOGOUS TO CANCER TISSUE IVICH, FERNANDO NMN 1678 Final Rejection Feb 04, 2021
17262105 TARGET CELL SPECIFIC CYTOSOL-PENETRATING ANTIGEN-BINDING MOLECULES STONEBRAKER, ALYSSA RAE 1642 Final Rejection Jan 21, 2021
17144342 ANTIGEN-BINDING MOLECULE FOR ELIMINATING AGGREGATED ANTIGENS SANG, HONG 1646 Non-Final OA Jan 08, 2021
15734755 ANTIGEN-BINDING MOLECULE SHOWING CHANGED HALF-LIFE IN CYTOPLASM CHASE, CAROL ANN 1646 Final Rejection Dec 03, 2020
17058896 LIGAND-BINDING MOLECULE CONTAINING SINGLE DOMAIN ANTIBODY EDGINGTONGIORDANO, FRANCESCA 1643 Non-Final OA Nov 25, 2020
16692676 ANTIGEN-BINDING MOLECULE HAVING REGULATED CONJUGATION BETWEEN HEAVY-CHAIN AND LIGHT-CHAIN BRISTOL, LYNN ANNE 1643 Final Rejection Nov 22, 2019

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