Prosecution Insights
Last updated: April 19, 2026

Morgan, Lewis & Bockius LLP

11 pending office actions • 2 clients

Portfolio Summary

11
Total Pending OAs
3
Final Rejections
8
Non-Final OAs

Client Portfolio (2 clients)

Client (Assignee)Pending OAs
Momenta Pharmaceuticals, Inc. 8
Takeda Pharmaceutical Company Limited 3

Pending Office Actions

App #TitleClientExaminerArt UnitStatusFiled
18691573 FACILITATED DELIVERY OF CONCENTRATED ANTIBODY FORMULATIONS USING HYALURONIDASE Takeda Pharmaceutical Company Limited HOLLAND, PAUL J 1656 Non-Final OA Mar 13, 2024
18218996 Sialylated Glycoproteins Momenta Pharmaceuticals, Inc. HADDAD, MAHER M 1641 Non-Final OA Jul 06, 2023
18218535 Sialylated Glycoproteins Momenta Pharmaceuticals, Inc. FAUST, AMBER KATHLEEN 1643 Non-Final OA Jul 05, 2023
18217401 Sialylated Glycoproteins Momenta Pharmaceuticals, Inc. LEONARD, ARTHUR S 1631 Non-Final OA Jun 30, 2023
18136803 Sialylated Glycoproteins Momenta Pharmaceuticals, Inc. D' AMBROSIO, THEA 1654 Final Rejection Apr 19, 2023
18022069 SIALYLATED GLYCOPROTEINS Momenta Pharmaceuticals, Inc. KIM, YUNSOO 1641 Non-Final OA Feb 17, 2023
18022061 HYPERSIALYLATED IMMUNOGLOBULIN Momenta Pharmaceuticals, Inc. BOWERS, ERIN M 1653 Non-Final OA Feb 17, 2023
17925999 HYPER-SIALYLATED IMMUNOGLOBULIN Momenta Pharmaceuticals, Inc. GAO, ASHLEY HARTMAN 1678 Final Rejection Nov 17, 2022
17909282 METHODS OF MAKING HYPER-SIALYLATED IMMUNOGLOBULIN Momenta Pharmaceuticals, Inc. RAGHU, GANAPATHIRAM 1652 Final Rejection Sep 02, 2022
17556857 PURIFICATION OF FVIII FROM PLASMA USING SILICON OXIDE ADSORPTION Takeda Pharmaceutical Company Limited ESPINOSA, CLAUDIA EDILMA 1654 Non-Final OA Dec 20, 2021
17169835 SEPARATION OF VWF AND VWF PROPEPTIDE BY CHROMATOGRAPHIC METHODS Takeda Pharmaceutical Company Limited STEELE, AMBER D 1658 Non-Final OA Feb 08, 2021

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