---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-046935"
form_type: "8-K"
ticker: "LQDA"
cik: "0001819576"
company_name: "Liquidia Corp"
filed_at: "2025-05-12T23:59:59+00:00"
generated_at: "2026-05-22T00:21:46.935556+00:00"
event_type: "litigation"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# UTHR files patent suit against Liquidia seeking to block YUTREPIA commercialization

## Summary
- UTHR sued Liquidia on May 9, 2025 alleging infringement of the '782 patent and seeking an injunction against YUTREPIA launch if FDA-approved.
- UTHR is not seeking an injunction against the FDA; PDUFA goal date for YUTREPIA remains May 24, 2025.
- The '782 patent is from the same family as the '793 patent, which was invalidated by the PTAB and upheld through appeals.
- Liquidia CEO states they expect to invalidate these claims as done previously with the '793 patent.

## SEC filing metadata
- accession: 0001104659-25-046935
- form_type: 8-K
- ticker: LQDA
- cik: 0001819576
- company_name: Liquidia Corp
- filed_at: 2025-05-12T23:59:59+00:00
- event_type: litigation
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1819576/000110465925046935/0001104659-25-046935-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1819576/000110465925046935/tm2514743d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-046935
- JSON: https://secwatch.observer/filing/0001104659-25-046935.json
- Plain text: https://secwatch.observer/filing/0001104659-25-046935.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.