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IN THE UNITED STATES DISTRICT COURT

FOR THE EASTERN DISTRICT OF TEXAS

MARSHALL DIVISION

PAR PHARMACEUTICAL INC. and ENDO 

PAR INNOVATION COMPANY, LLC,

Plaintiffs, 

v. 

ALKEM LABORATORIES LTD.,

Defendant. 

v. 

MANKIND PHARMA LIMITED,

Defendant. 

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Civil Action No. 2:23-cv-00400-JRG-RSP

(LEAD CASE)

 

Civil Action No. 2:23-cv-00399-JRG-RSP

(MEMBER CASE)

P.R. 4-3 JOINT CLAIM CONSTRUCTION STATEMENT

Pursuant to P.R. 4-3 and the Docket Control Order the Court has entered in this case, 

Plaintiffs Par Pharmaceutical Inc. and Endo Par Innovation Company, LLC (collectively 

“Plaintiffs” or “Par”) and Defendants Alkem Laboratories Ltd. (“Alkem”) and Mankind Pharma 

Limited (“Mankind”) (collectively, “Defendants”) file this joint claim construction statement. 

The claim construction hearing currently set for December 5, 2024 is set to address, to 

the extent necessary, asserted U.S. Patent Nos. 11,717,524 (“’524 patent”) and 11,779,587 

(“’587 patent”).

I. P.R. 4-3(a) Agreed Claim Constructions

The parties have not agreed to any claim constructions.

II. P.R. 4-3(b) Proposed Constructions for Terms in Dispute

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See Exhibit A for a chart showing the parties’ proposed constructions with intrinsic and 

extrinsic evidence supporting such constructions. All parties reserve the right to rely upon any 

intrinsic or extrinsic evidence identified by any other party, and any evidence obtained through 

claim construction discovery. In addition, each party reserves the right to amend, correct, or 

supplement its claim construction positions and supporting evidence in response to any change 

of position by any other party, or for other good cause. 

III. P.R. 4-3(c) Anticipated Length of Time for Claim Construction Hearing

The parties propose that each side receive 90 minutes for oral argument on claim 

construction issues. Thus, the parties anticipate the claim construction hearing to last no more 

than 3 hours. 

IV. P.R. 4-3(d) Anticipated Witnesses at the Claim Construction Hearing

No party will call any live witnesses at the claim construction hearing. As identified in 

Exhibit A, the parties may submit expert declarations from various experts with the claim 

construction briefings. 

V. P.R. 4-3(e) Other Issues to be Addressed at Claim Construction Prehearing 

Conference

The parties are not aware of any other issues at this time that might be appropriately 

addressed at a prehearing conference prior to the Claim Construction Hearing. 

Dated: September 19, 2024 By: /s/Martin J. Black by permission Andrea 

Fair__________ 

Martin J. Black LEAD ATTORNEY

Brian M. Goldberg

Sharon K. Gagliardi

Luke M. Reilly

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DECHERT LLP

Cira Centre 

2929 Arch Street

Philadelphia, PA 19104

Tel: (215) 994-4000 

Fax: (215) 994-2222 

martin.black@dechert.com

brian.goldberg@dechert.com

sharon.gagliardi@dechert.com

luke.reilly@dechert.com

Shyam Shanker

DECHERT LLP

300 South Tryon Street

Suite 800

Charlotte, NC 28202

Tel: (704)-339-3160 

Fax: (704) 339-3101 

shyam.shanker@dechert.com

Jonathan D.J. Loeb, Ph.D.

DECHERT LLP

2400 W. El Camino Real, Suite 700

Mountain View, CA 94040-1499 

Tel: (650) 813-4995 

Jonathan.loeb@dechert.com

OF COUNSEL:

Andrea L. Fair

Texas Bar No. 24078488

WARD, SMITH & HILL, PLLC

1507 Bill Owens Pkwy.

Longview, TX 75604

Tel: (903) 757-6400 

andrea@wsfirm.com

Counsel for Plaintiffs Par Pharmaceutical, Inc. 

and Endo Par Innovation Company, LLC

Dated: September 19, 2024 /s/ Melissa R. Smith by permission Andrea L. 

Fair

Melissa R. Smith

State Bar No. 24001351

GILLAM & SMITH LLP

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303 South Washington Avenue

Marshall, Texas 75670

Telephone: (903) 934-8450 

Facsimile: (903) 934-9257 

melissa@gillamsmithlaw.com

A. Neal Seth 

Teresa Summers

Wiley Rein LLP

2050 M St. NW

Washington, DC 20036

Telephone: 202-719-7000 

Facsimile: 202-719-7049 

nseth@wiley.law

tsummers@wiley.law

Attorneys for Defendant Alkem Laboratories, 

Ltd.

/s/ Rex Mann by permission Andea L. Fair 

Rex Mann

Brett Johnson

WINSTON & STRAWN LLP (#90875)

2121 N. Pearl Street, Suite 900

Dallas, TX 75201

Telephone: (214) 453-6500 

Facsimile: (214) 453-6400 

rmann@winston.com

mbjohnson@winston.com

Maureen Rurka

Samantha M. Lerner

WINSTON & STRAWN LLP (#90875)

35 West Wacker Drive

Chicago, IL 60601

Telephone: (312) 558-5600 

Facsimile: (312) 558-5700 

mrurka@winston.com

slerner@winston.com

Attorneys for Defendant Mankind Pharma 

Limited

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CERTIFICATE OF SERVICE

The undersigned hereby certifies that the foregoing document was served on all 

counsel of record via electronic mail in accordance with Local Rule CV-5(d) on this 19th Day 

of September 2024. 

/s/Martin J. Black 

Martin J. Black

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