Wednesday, July 8, 2026

Patent directory · USPTO A61K / A61P

Patents matching “Amphastar Pharmaceuticals, Inc.”

13 pharma patents match "Amphastar Pharmaceuticals, Inc." in our USPTO index (A61K/A61P) — applicant, grant date, expiration, and drug links.

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Index total 30,257
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This filtered view shows 13 pharmaceutical patents matching "Amphastar Pharmaceuticals, Inc." in our USPTO PatentsView index (CPC A61K/A61P). Search matches patent number, title, applicant, and CPC classification codes.

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13 results for “Amphastar Pharmaceuticals, Inc.” · 30,257 patents in full index Clear search

  1. US 12383516

    Albuterol aerosol suspension formulation for oral inhalation with high amount of green propellant hydrofluoroolefin (HFO) and free of co-solvent

    Amphastar Pharmaceuticals, Inc. · Granted Aug 12, 2025 · Expires Aug 7, 2045

    granted
  2. US 12370241

    Nasal powder formulation for treatment of hypoglycemia

    Amphastar Pharmaceuticals, Inc. · Granted Jul 29, 2025 · Expires Jul 24, 2045

    granted
  3. US 12226456

    Nasal powder formulation for treatment of hypoglycemia

    Amphastar Pharmaceuticals, Inc. · Granted Feb 18, 2025 · Expires Feb 13, 2045

    granted
  4. US 11938089

    Medication delivery systems and methods

    Amphastar Pharmaceuticals, Inc. · Granted Mar 26, 2024 · Expires Mar 21, 2044

    granted
  5. US 11524987

    Highly purified recombinant human insulin (RHI) API and methods of producing the same

    Amphastar Pharmaceuticals, Inc. · Granted Dec 13, 2022 · Expires Dec 8, 2042

    granted
  6. US 11446360

    High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the same

    Amphastar Pharmaceuticals, Inc. · Granted Sep 20, 2022 · Expires Sep 15, 2042

    granted
  7. US 10406210

    High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the same

    Amphastar Pharmaceuticals, Inc. · Granted Sep 10, 2019 · Expires Sep 5, 2039

    granted
  8. US 10322168

    High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the same

    Amphastar Pharmaceuticals, Inc. · Granted Jun 18, 2019 · Expires Jun 13, 2039

    granted
  9. US 10258573

    Micronized insulin and micronized insulin analogues prepared under acidic conditions, and methods of manufacturing the same under acidic conditions

    Amphastar Pharmaceuticals, Inc. · Granted Apr 16, 2019 · Expires Apr 11, 2039

    granted
  10. US 8974801

    Long term sustained release pharmaceutical composition containing aqueous suspension of bisphosphonate

    Amphastar Pharmaceuticals, Inc. · Granted Mar 10, 2015 · Expires Mar 5, 2035

    granted
  11. US 8367734

    Stable epinephrine suspension formulation with high inhalation delivery efficiency

    Amphastar Pharmaceuticals, Inc. · Granted Feb 5, 2013 · Expires Jan 31, 2033

    granted
  12. US 7468394

    Sterile pharmaceutical composition and process for a solution of propofol emulsion having microbial growth retardation

    Amphastar Pharmaceuticals, Inc. · Granted Dec 23, 2008 · Expires Dec 18, 2028

    granted
  13. US 6399087

    Propofol formulation with enhanced microbial inhibition

    Amphastar Pharmaceuticals, Inc. · Granted Jun 4, 2002 · Expires May 30, 2022

    expired