secwatch.observer — SEC 8-K summary
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Issuer:     ATOSSA THERAPEUTICS, INC. (ATOS)
CIK:        0001488039
Form:       8-K
Filed at:   2025-04-07T23:59:59+00:00
Accession:  0000950170-25-051575
Event type: litigation
Sentiment:  negative
Materiality: 0.70
Item codes: 8.01
LLM model:  deepseek-v4-flash:cloud@v2

Intas Pharmaceuticals challenges two Atossa endoxifen patents with PGR and IPR petitions at USPTO
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- Intas filed PGR petition against U.S. Patent No. 12,071,391, titled 'Methods for Making and Using Endoxifen'.
- Intas also filed IPR petition against U.S. Patent No. 11,261,151, also titled 'Methods for Making and Using Endoxifen'.
- Atossa intends to vigorously contest the petitions and believes the patents are valid and enforceable.
- No assurance that Atossa will prevail in the USPTO proceedings.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1488039/000095017025051575/0000950170-25-051575-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1488039/000095017025051575/atos-20250407.htm
  HTML page:      https://secwatch.observer/filing/0000950170-25-051575

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer