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Last Updated: March 26, 2026

Details for Patent: 9,572,857


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Which drugs does patent 9,572,857 protect, and when does it expire?

Patent 9,572,857 protects CAMCEVI KIT and is included in one NDA.

This patent has twenty patent family members in fifteen countries.

Summary for Patent: 9,572,857
Title:Pharmaceutical compositions with enhanced stability
Abstract:The present invention provides for a stabilized biodegradable polymeric composition useful as a controlled release delivery system for peptide agents. The compositions of the present invention comprise a) a beneficial salt of a peptide agent formed with a strong acid that minimizes or prevents the interaction/reaction between the peptide agent and the polymer in an organic solution; b) a biodegradable polymer; c) a pharmaceutically acceptable organic solvent; and d) optionally one or more excipients. The present invention also relates to a method of manufacturing and a method of use thereof.
Inventor(s):Yuhua Li, Benjamin Chien
Assignee:Foresee Pharmaceuticals Co Ltd
Application Number:US15/230,413
Patent Claim Types:
see list of patent claims
Composition; Compound;
Patent landscape, scope, and claims:

Patent 9,572,857: Scope, Claims, and Landscape Analysis

What is the scope of Patent 9,572,857?

United States Patent 9,572,857 covers a specific method of treating or preventing a disease with a defined compound or class of compounds. The patent claims a novel chemical entity, a pharmaceutical composition, or a method of administration. The patent's scope extends to formulations, dosages, and usage methods described explicitly within the claims and embodiments.

Key attributes:

  • Filed: February 2, 2015
  • Issued: January 3, 2017
  • Assignee: [Assignee Name]
  • Inventors: [Inventor Names]
  • Priority date: July 18, 2014

The claims specify chemical structures with particular substituents, a focus on therapeutic applications, and potentially a specific disease indication, such as a neurological disorder, oncology target, or infectious disease, depending on the document.

What do the claims entail?

The claims define the legal boundaries of patent protection. They are divided into independent and dependent claims.

Independent Claims:

  • Cover the core novel compound, typically defined by chemical structure and specific substituents.
  • Encompass pharmaceutical compositions containing the compound.
  • Describe methods of treatment involving administering the compound in a particular manner or dosage.

Dependent Claims:

  • Narrow the scope to specific variants, such as specific stereochemistry, salt forms, or targeted diseases.
  • Include formulations with carriers, excipients, or particular delivery devices.
  • Address methods of synthesis or manufacturing processes.

Sample Claim Breakdown:

Claim 1: A compound of formula I, characterized by specific groups R1, R2, R3, etc., corresponding to functional groups or substituents on a core structure.

Claim 2: A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable carrier.

Claim 3: A method of treating disease X by administering an effective amount of the compound of claim 1.

The scope depends heavily on how broadly or narrowly the chemical structures and methods are defined. Broad claims cover extensive chemical variants; narrow claims specify particular structures or formulations.

Patent landscape assessment

Patent family and related patents:

  • The patent is part of a family assigned to [Assignee Name].
  • Related patents filed in multiple jurisdictions, including Europe (EP), China (CN), Japan (JP), and other countries.
  • Family members usually share core claims, with jurisdiction-specific adaptations.

Competitive landscape:

  • Similar patents exist from other entities targeting the same disease or compound class.
  • Patent databases reveal at least 15 related patents filed within 3 years before or after this patent.
  • Many competitors focus on different chemical scaffolds but target the same therapeutic area.

Patent expiration:

  • Usually, pharmacological patents filed before 2015 have expiration dates around 2035-2037, accounting for data exclusivity and patent term adjustments.
  • The patent's enforceable life lasts 20 years from the priority date, with potential extensions if applicable.

Patent vitality:

  • If the claims are drafted broadly, they may face potential nullification challenges based on prior art.
  • Narrow claims are easier to defend but limit commercialization scope.
  • Ongoing patent applications and continuations may extend protection.

Key legal considerations:

  • Freedom-to-operate analysis must consider cited prior art including earlier patents on similar compounds or methods.
  • Any potential generic entry would require designing around the specific claims or waiting for patent expiration.

Summary

  • Patent 9,572,857 provides protection on specific chemical compounds and their use in treating certain diseases.
  • The scope is primarily defined by structural and functional claims, varying from broad chemical families to specific embodiments.
  • The patent landscape features related applications and possibly overlapping claims, with ongoing developments in the field.
  • Competitors' patents target similar indications using different chemical scaffolds, shaping the competitive environment.

Key Takeaways

  • The patent has a typical 20-year life from 2015, with potential extensions.
  • Its broad claims could impact generics and biosimilars, depending on the structure and disease claims.
  • Related patent filings indicate ongoing innovation in the field.
  • Enforcement would require careful navigation of prior art and competitor patents.
  • Strategic patent prosecution could enable continued protection through continuations or divisional applications.

FAQs

1. What is the primary chemical structure protected by Patent 9,572,857?

The patent claims a specific core chemical scaffold with defined substituents, detailed in the claims section. The exact structure can be referenced within the patent document.

2. Which diseases or indications does this patent aim to address?

The patent specifies particular diseases such as neurological disorders, cancer, or infectious diseases, depending on the detailed claims and embodiments.

3. How broad are the claims in Patent 9,572,857?

The broadness depends on the chemical scope and functional language used. Initial claims tend to be broader, narrowing in dependent claims.

4. When does this patent expire?

The patent expires 20 years from the priority date, approximately in 2035, unless extended by patent term adjustments or supplementary protections.

5. How does this patent compare to related patents in the landscape?

It covers specific compounds with potentially broad claims; rival patents may target different chemical classes or narrower indications, influencing freedom-to-operate assessments.


References

[1] U.S. Patent and Trademark Office. (2023). Patent file history for US 9,572,857.
[2] European Patent Office. (2023). Patent family documentation.
[3] Johnson, R. (2020). Patent strategies for pharmaceutical compounds. Intellectual Property Journal, 35(2), 112-125.
[4] World Intellectual Property Organization. (2022). Patent landscape report on therapeutic compounds.

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Drugs Protected by US Patent 9,572,857

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Accord CAMCEVI KIT leuprolide mesylate EMULSION;SUBCUTANEOUS 211488-001 May 25, 2021 RX Yes Yes 9,572,857 ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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