8-K
filed June 2, 2026, 5:15 PM ET
ticker HRTX
CIK 0000818033
litigation
confidence high
sentiment negative
materiality 0.75
Court invalidates two CINVANTI patents; Heron to appeal to Federal Circuit
HERON THERAPEUTICS, INC. /DE/
- U.S. District Court for Delaware ruled claims of Patents 12,115,255 and 12,290,520 invalid on June 1, 2026.
- Decision does not affect prior settlements for CINVANTI or APONVIE injectable emulsions.
- Heron intends to appeal to the Federal Circuit, a court specializing in patent disputes.
- CEO Craig Collard said company will vigorously pursue appeal and all available remedies.
- Litigation with Azurity (formerly Slayback) involves a generic version of CINVANTI.
Featured in Daily 8-K Digest
Machine-readable event card
- schema_version
- secwatch.filing_event.v1
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- 0001193125-26-253851
- form_type
- 8-K
- ticker
- HRTX
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- 0000818033
- company_name
- HERON THERAPEUTICS, INC. /DE/
- filed_at
- 2026-06-02T21:15:12+00:00
- discovered_at
- 2026-06-02T21:16:00.540773+00:00
- generated_at
- 2026-06-02T21:16:26.383586+00:00
- sec_items
- ["8.01", "9.01"]
- event_type
- litigation
- sentiment
- negative
- materiality_score
- 0.75
- calibrated_materiality_score
- 0.75
- confidence
- high
- secwatch_canonical_url
- https://secwatch.observer/filing/0001193125-26-253851
- json_url
- https://secwatch.observer/filing/0001193125-26-253851.json
- markdown_url
- https://secwatch.observer/filing/0001193125-26-253851.md
- text_url
- https://secwatch.observer/filing/0001193125-26-253851.txt
- edgar_index_url
- https://www.sec.gov/Archives/edgar/data/818033/000119312526253851/0001193125-26-253851-index.htm
- edgar_primary_document_url
- https://www.sec.gov/Archives/edgar/data/818033/000119312526253851/hrtx-20260602.htm
- generated_by_model
- deepseek-v4-flash:cloud@v2
- review_status
- machine_generated
- human_reviewed
- false
- corrected
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- correction_note
- null
- correction_timestamp
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