Explore the details of the LIQUIDIA TECHNOLOGIES, INC. v. UNITED THERAPEUTICS CORPORATION case under case number 1:2025cv00299 involving a cause of action for Patent Infringement. Review key information about the parties involved, the patents in question, and the docket entries.

Case Details

Case Number
1:2025cv00299
Filing Date
Apr 21, 2025
Cause of Action
Patent Infringement
Status
OPEN
Case Link
View Case
Nature of Suit
830

Plaintiffs

The following plaintiffs are involved in this case, with their respective legal representatives for the case.

CompanyRepresented By
LIQUIDIA TECHNOLOGIES, INC.
PARKER POE ADAMS & BERNSTEIN LLP
COOLEY LLP

Defendants

The following defendants are involved in this case, with their respective legal representatives for the case.

CompanyRepresented By
UNITED THERAPEUTICS CORPORATION -

Patents Involved in the Case

There is a single patent involved in this case.

Application NumberPatent Number
16099135US10898494B2

Docket Entries

The Docket Entries section provides a chronological list of all significant filings and court actions in this case.

DateDocket EntryType

Set alerts for critical docket entry

May 2, 2025NOTICE of Special Appearance by attorney KYUNG TAECK MINN on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080518.) (MINN, KYUNG TAECK) (Entered: 05/02/2025)NOTICE
May 2, 2025NOTICE of Special Appearance by attorney LAUREN STROSNICK on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080515.) (STROSNICK, LAUREN) (Entered: 05/02/2025)NOTICE
May 2, 2025NOTICE of Special Appearance by attorney KNAUSS DANIEL on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080512.) (DANIEL, KNAUSS) (Entered: 05/02/2025)NOTICE
May 2, 2025NOTICE of Special Appearance by attorney JORDAN LANDERS on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080510.) (LANDERS, JORDAN) (Entered: 05/02/2025)NOTICE
May 2, 2025NOTICE of Special Appearance by attorney RACHEL PRESTON on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080504.) (PRESTON, RACHEL) (Entered: 05/02/2025)NOTICE
May 2, 2025NOTICE of Special Appearance by attorney JOHN ARASH HABIBI on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080502.) (HABIBI, JOHN) (Entered: 05/02/2025)NOTICE
May 2, 2025NOTICE of Special Appearance by attorney BONNIE FLETCHER PRICE on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080499.) (FLETCHER PRICE, BONNIE) (Entered: 05/02/2025)NOTICE
May 2, 2025NOTICE of Special Appearance by attorney PHILLIP MORTON on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080496.) (MORTON, PHILLIP) (Entered: 05/02/2025)NOTICE
May 2, 2025NOTICE of Special Appearance by attorney JONATHAN DAVIES on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080488.) (DAVIES, JONATHAN) (Entered: 05/02/2025)NOTICE
May 2, 2025NOTICE of Special Appearance by attorney SANYA SUKDUANG on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. ( Filing fee $ 25 receipt number ANCMDC-4080478.) (SUKDUANG, SANYA) (Entered: 05/02/2025)NOTICE
Apr 22, 2025WAIVER OF SERVICE Returned Executed by LIQUIDIA TECHNOLOGIES, INC.. UNITED THERAPEUTICS CORPORATION waiver sent on 4/21/2025, answer due 6/20/2025. (CAREY, STEPHEN) (Entered: 04/22/2025)WAIVER OF SERVICE
Apr 22, 2025Notice of Right to Consent. Counsel shall serve the attached form on all parties. (Attachments: # 1 Consent Form) (sh) (Entered: 04/22/2025)-
Apr 22, 2025Summons Issued as to UNITED THERAPEUTICS CORPORATION. (sh) (Entered: 04/22/2025)-
Apr 21, 2025NOTICE of Attorney Appearance by attorney AISLINN KLOS on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. (KLOS, AISLINN) (Entered: 04/21/2025)NOTICE
Apr 21, 2025NOTICE of Attorney Appearance by attorney CORRI A. HOPKINS on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. (HOPKINS, CORRI) (Entered: 04/21/2025)NOTICE
Apr 21, 2025Corporate Disclosure Statement identifying Corporate Parent LIQUIDIA CORPORATION for LIQUIDIA TECHNOLOGIES, INC... (CAREY, STEPHEN) (Entered: 04/21/2025)-
Apr 21, 2025NOTICE of Attorney Appearance by attorney STEPHEN V. CAREY on behalf of Plaintiff LIQUIDIA TECHNOLOGIES, INC. (CAREY, STEPHEN) (Entered: 04/21/2025)NOTICE
Apr 21, 2025COMPLAINT FOR PATENT INFRINGEMENT against UNITED THERAPEUTICS CORPORATION ( Filing fee $ 405 receipt number ANCMDC-4071264.), filed by LIQUIDIA TECHNOLOGIES, INC. (Attachments: # 1 Exhibit A - 494 Patent, # 2 Exhibit B - Prescribing Information, # 3 Exhibit C - Instructions for Use, # 4 Exhibit D - TYVASO Brochure, # 5 Exhibit E - McEvoy 2023)(CAREY, STEPHEN) Modified on 4/21/2025 to match title of document. (sh) (Entered: 04/21/2025)COMPLAINT FOR PATENT INFRINGEMENT