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IP Verse

Halozyme, Inc. - IPR2026-00176

Explore the PTAB proceeding IPR2026-00176 filed by Halozyme, Inc. on Dec 10, 2025. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Case Details

Proceeding Number
IPR2026-00176
Filing Date
Dec 10, 2025
Petitioner
Halozyme, Inc.
Status
Petition filed
Respondent Application Number
17907538
Respondent Tech Center
1600
Respondent Patent Number
12221638

Decision Documents New

Decision pending - set alert to receive updates

Proceeding Documents

The table below shows documents filed in the case, listing each document name, filing date, document type, and filing party. Tracking these filings indicates the activity of the parties involved in the case, and the types of documents filed can provide insights into the legal strategies being employed.

Document NameFiling DateCategoryFiling Party

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U.S. Patent No. 12,221,638 to Park (“the ’638 patent”)

Dec 10, 2025EXHIBITPETITIONER

Declaration of Michael Butler, Ph.D.

Dec 10, 2025EXHIBITPETITIONER

Curriculum Vitae of Michael Butler, Ph.D.

Dec 10, 2025EXHIBITPETITIONER

Excerpted prosecution history of U.S. Appl. No. 17/907,538

Dec 10, 2025EXHIBITPETITIONER

International Patent Publication WO2017/011598 to Jonathan Zmuda and Chao

Dec 10, 2025EXHIBITPETITIONER

EP3037529 to Ge Wei, Krishnasamy Paneerselvam, Gregory I. Frost, and Louis

Dec 10, 2025EXHIBITPETITIONER

“Human cell lines for biopharmaceutical manufacturing: history, status, and

Dec 10, 2025EXHIBITPETITIONER

“Recombinant Proteins for Industrial versus Pharmaceutical Purposes:

Dec 10, 2025EXHIBITPETITIONER

Gowtham YK, Saski CA, Harcum SW. “Low glucose concentrations within typical

Dec 10, 2025EXHIBITPETITIONER

“Mammalian cell culture for production of recombinant proteins: A review of

Dec 10, 2025EXHIBITPETITIONER

“Systematic development of temperature shift strategies for Chinese hamster

Dec 10, 2025EXHIBITPETITIONER

International Patent Publication No. WO2020/022791 to Park

Dec 10, 2025EXHIBITPETITIONER

“Exploring the effect of mild hypothermia on CHO cell productivity”

Dec 10, 2025EXHIBITPETITIONER

U.S. Patent Application Publication US20210155913A1 to Park

Dec 10, 2025EXHIBITPETITIONER

“Miniaturized Integrated Platform for Electrical and Optical Monitoring of

Dec 10, 2025EXHIBITPETITIONER

Invitrogen CELL CULTURE BASICS Handbook

Dec 10, 2025EXHIBITPETITIONER

Gibco CD CHO Medium User Guide

Dec 10, 2025EXHIBITPETITIONER

“Optimizing CHO Cell Culture Conditions” to Christopher A. Sellick, Arfa R.

Dec 10, 2025EXHIBITPETITIONER

“Biphasic cultivation strategy to avoid Epo-Fc aggregation and optimize pro

Dec 10, 2025EXHIBITPETITIONER

“Process Parameter Shifting: Part I. Effect of DOT, pH, and Temperature on

Dec 10, 2025EXHIBITPETITIONER

“Effects of Culture Conditions on N-Glycolylneuraminic Acid (Neu5Gc) Conten

Dec 10, 2025EXHIBITPETITIONER

“Production platforms for biotherapeutic glycoproteins. Occurrence, impact,

Dec 10, 2025EXHIBITPETITIONER

“Optimal and consistent protein glycosylation in mammalian cell culture” to

Dec 10, 2025EXHIBITPETITIONER

“NIST Interlaboratory Study on Glycosylation Analysis of Monoclonal Antibod

Dec 10, 2025EXHIBITPETITIONER

“Protein Glycosylation Control in Mammalian Cell Culture: Past Precedents a

Dec 10, 2025EXHIBITPETITIONER

“The Combined Effect of Sodium Butyrate and Low Culture Temperature on the

Dec 10, 2025EXHIBITPETITIONER

“Hyaluronidase: An overview of its properties, applications, and side effec

Dec 10, 2025EXHIBITPETITIONER

“A recombinant human enzyme for enhanced interstitial transport of therapeu

Dec 10, 2025EXHIBITPETITIONER

“Recombinant human hyaluronidase (rHuPH20): an enabling platform for subcut

Dec 10, 2025EXHIBITPETITIONER

“ENHANZE® drug delivery technology: a novel approach to subcutaneous admini

Dec 10, 2025EXHIBITPETITIONER

“N-Glycosylation and enzymatic activity of the rHuPH20 expressed in Chinese

Dec 10, 2025EXHIBITPETITIONER

Butler M, Meneses-Acosta A. Recent advances in technology supporting biopha

Dec 10, 2025EXHIBITPETITIONER

U.S. Patent No. 8,187,855 to David Baker and Louis H. Bookbinder (“Baker”)

Dec 10, 2025EXHIBITPETITIONER

“Attaining High Transient Titers in CHO Cells” Liu, Chao Yan,

Dec 10, 2025EXHIBITPETITIONER

International Patent Publication WO2013/102144 to Ge Wei, Michael H. Shepar

Dec 10, 2025EXHIBITPETITIONER

Petition: as filed

Dec 10, 2025PAPERPETITIONER

Notice: Power of Attorney

Dec 10, 2025PAPERPETITIONER