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Ascendis Pharma A/S v. Biomarin Pharmaceutical Inc.

4:25-cv-05696

Overview

Case Number 4:25-cv-05696
Filing Date 2025-07-07
Status Terminated
Termination Date 2025-09-09
Court District Court, N.D. California (cand)
Presiding Judge Yvonne Gonzalez Rogers
Nature of Suit 830 Patent
Jurisdiction Type Federal Question
Cause of Action 28:2201 Declaratory Judgement
Jury Demand None

Parties

Defendant

Biomarin Pharmaceutical Inc.

Represented By

7 Attorneys Listed

Sean Christian Platt

Jones Day

Tel: +1 (650) 739-3939
Fax: +1 (650) 739-3900

Jones Day, 1755 Embarcadero Road

Sabrina Alexis Bellantoni

Desmarais LLP

Tel: +1 (212) 808-1047

230 Park Avenue, New York, NY 10169

Miguel Alejandro Alvarez

2843 Monroe Ave.

Tel: +1 (559) 972-2949

2843 Monroe Ave., 92116

Lauren H. Kim

Jones Day - New York

Tel: +1 (212) 326-3434

Jones Day - New York, 250 Vesey St

Jason G Winchester

Jones Day

Tel: +1 (312) 269-4373
Fax: +1 (312) 782-8585

Jones Day, 110 N. Wacker Dr.

Gasper Joseph LaRosa , II

Jones Day

Tel: +1 (212) 326-7885
Fax: +1 (212) 755-7306

Jones Day, 250 Vesey Street

Edward Robert Reines

Jones Day

Tel: +1 (650) 739-3939
Fax: +1 (650) 739-3900

Jones Day, 1755 Embarcadero Road

Plaintiff

Ascendis Pharma, Inc.

Represented By

8 Attorneys Listed

Roger J. Chin

Latham & Watkins LLP

Tel: +1 (415) 391-0600
Fax: +1 (415) 395-8095

505 Montgomery Street, Suite 2000, San Francisco, CA 94111

Michael A David

Latham & Watkins

Tel: +1 (202) 637-2200

Latham & Watkins, 555 Eleventh Street, NW

Jamie Underwood

Latham & Watkins

Tel: +1 (202) 637-2200
Fax: +1 (202) 637-2201

Latham & Watkins, 555 Eleventh Street NW

Michael E. Joffre

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 371-2600

Sterne Kessler Goldstein & Fox, 1101 K Street NW

Kristina Caggiano Kelly

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 371-2600

Sterne Kessler Goldstein & Fox, 1101 K Street, NW

Deirdre Marie Wells

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 772-8557

Sterne Kessler Goldstein & Fox, 1101 K Street, NW

Gabriel S. Gross

Weil, Gotshal & Manges

Tel: +1 (650) 802-3180

Weil, Gotshal & Manges, 201 Redwood Shores Parkway

Gabrielle LaHatte

Weil, Gotshal & Manges LLP

Tel: +1 (415) 470-5151
Fax: +1 (415) 470-5155

600 Montgomery Street, Ste 32nd Floor

Ascendis Pharma Growth Disorders A/S

Represented By

9 Attorneys Listed

Roger J. Chin

Latham & Watkins LLP

Tel: +1 (415) 391-0600
Fax: +1 (415) 395-8095

505 Montgomery Street, Suite 2000, San Francisco, CA 94111

Michael A David

Latham & Watkins

Tel: +1 (202) 637-2200

Latham & Watkins, 555 Eleventh Street, NW

Jamie Underwood

Latham & Watkins

Tel: +1 (202) 637-2200
Fax: +1 (202) 637-2201

Latham & Watkins, 555 Eleventh Street NW

Michael E. Joffre

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 371-2600

Sterne Kessler Goldstein & Fox, 1101 K Street NW

Kristina Caggiano Kelly

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 371-2600

Sterne Kessler Goldstein & Fox, 1101 K Street, NW

John Christopher Rozendaal

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 772-8572

Sterne Kessler Goldstein & Fox, 1101 K Street NW

Deirdre Marie Wells

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 772-8557

Sterne Kessler Goldstein & Fox, 1101 K Street, NW

Gabriel S. Gross

Weil, Gotshal & Manges

Tel: +1 (650) 802-3180

Weil, Gotshal & Manges, 201 Redwood Shores Parkway

Gabrielle LaHatte

Weil, Gotshal & Manges LLP

Tel: +1 (415) 470-5151
Fax: +1 (415) 470-5155

600 Montgomery Street, Ste 32nd Floor

Ascendis Pharma A/S

Represented By

9 Attorneys Listed

Roger J. Chin

Latham & Watkins LLP

Tel: +1 (415) 391-0600
Fax: +1 (415) 395-8095

505 Montgomery Street, Suite 2000, San Francisco, CA 94111

Michael A David

Latham & Watkins

Tel: +1 (202) 637-2200

Latham & Watkins, 555 Eleventh Street, NW

Jamie Underwood

Latham & Watkins

Tel: +1 (202) 637-2200
Fax: +1 (202) 637-2201

Latham & Watkins, 555 Eleventh Street NW

Michael E. Joffre

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 371-2600

Sterne Kessler Goldstein & Fox, 1101 K Street NW

Kristina Caggiano Kelly

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 371-2600

Sterne Kessler Goldstein & Fox, 1101 K Street, NW

John Christopher Rozendaal

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 772-8572

Sterne Kessler Goldstein & Fox, 1101 K Street NW

Deirdre Marie Wells

Sterne Kessler Goldstein & Fox

Tel: +1 (202) 772-8557

Sterne Kessler Goldstein & Fox, 1101 K Street, NW

Gabriel S. Gross

Weil, Gotshal & Manges

Tel: +1 (650) 802-3180

Weil, Gotshal & Manges, 201 Redwood Shores Parkway

Gabrielle LaHatte

Weil, Gotshal & Manges LLP

Tel: +1 (415) 470-5151
Fax: +1 (415) 470-5155

600 Montgomery Street, Ste 32nd Floor

Court & Judges

Court

District Court, N.D. California (cand)

Presiding Judge

Yvonne Gonzalez Rogers

Patents Involved

No asserted patent numbers detected in initial docket filings yet.

Docket Entries

COMPLAINT for Declaratory Judgment of Non-Infringement against Biomarin Pharmaceutical Inc. ( Filing fee $ 405, receipt number ACANDC-20865565.). Filed by Ascendis Pharma A/S, Ascendis Pharma, Inc., Ascendis Pharma Growth Disorders A/S. (Attachments: # 1 Exhibit 1, # 2 Exhibit 2, # 3 Exhibit 3, # 4 Exhibit 4)(Gross, Gabriel) (Filed on 7/7/2025) (Entered: 07/07/2025)

2025-07-07
1

COMPLAINT for Declaratory Judgment of Non-Infringement against Biomarin Pharmaceutical Inc. ( Filing fee $ 405, receipt number ACANDC-20865565.). Filed by Ascendis Pharma A/S, Ascendis Pharma, Inc., Ascendis Pharma Growth Disorders A/S. (Attachments: # 1 Exhibit 1, # 2 Exhibit 2, # 3 Exhibit 3, # 4 Exhibit 4)(Gross, Gabriel) (Filed on 7/7/2025) (Entered: 07/07/2025)

2025-07-07
2

COMPLAINT for Declaratory Judgment of Non-Infringement against Biomarin Pharmaceutical Inc. ( Filing fee $ 405, receipt number ACANDC-20865565.). Filed by Ascendis Pharma A/S, Ascendis Pharma, Inc., Ascendis Pharma Growth Disorders A/S. (Attachments: # 1 Exhibit 1, # 2 Exhibit 2, # 3 Exhibit 3, # 4 Exhibit 4)(Gross, Gabriel) (Filed on 7/7/2025) (Entered: 07/07/2025)

2025-07-07
2

COMPLAINT for Declaratory Judgment of Non-Infringement against Biomarin Pharmaceutical Inc. ( Filing fee $ 405, receipt number ACANDC-20865565.). Filed by Ascendis Pharma A/S, Ascendis Pharma, Inc., Ascendis Pharma Growth Disorders A/S. (Attachments: # 1 Exhibit 1, # 2 Exhibit 2, # 3 Exhibit 3, # 4 Exhibit 4)(Gross, Gabriel) (Filed on 7/7/2025) (Entered: 07/07/2025)

2025-07-07
2

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