You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 16, 2025

Details for Patent: 11,419,842


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 11,419,842 protect, and when does it expire?

Patent 11,419,842 protects BEIZRAY and is included in one NDA.

This patent has three patent family members in two countries.

Summary for Patent: 11,419,842
Title:Neutral pH compositions of Docetaxel and human serum albumin
Abstract:This document relates to non-covalently bound complexes including Docetaxel and human serum albumin, and to compositions comprising such complexes. This document also relates to compositions comprising Docetaxel and human serum albumin, wherein the composition is a clear aqueous solution when the composition is dissolved in an aqueous solution, and wherein the composition has a solubility in an aqueous solution of at least 10 mg/ml. This document also relates to compositions comprising Docetaxel and human serum albumin, wherein the Docetaxel and the human serum albumin in the composition have a weight ratio from about 1:50 to about 1:1000. This document also relates to compositions consisting essentially of Docetaxel and human serum albumin, wherein the Docetaxel and the human serum albumin in the composition have a weight ratio from about 1:50 to about 1:1000. The pH of the docetaxel compositions of the present disclosure is from about 5 to about 8.
Inventor(s):Qun Sun
Assignee: Zhuhai Beihai Biotech Co Ltd
Application Number:US16/345,615
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 11,419,842


Introduction

U.S. Patent No. 11,419,842, granted on September 20, 2022, represents a significant development in the domain of pharmaceutical innovations, reflecting a strategic effort to secure exclusive rights over novel therapeutic compounds or formulations. This patent’s scope, claims, and positioning within the broader patent landscape are critical for understanding its commercial potential and legal strength.


Scope of Patent 11,419,842

The scope of U.S. Patent 11,419,842 centers on a specific chemical entity, formulation, or method of use linked to a new drug candidate or dosage form. The patent aims to protect a novel invention—either a molecule, an improved synthesis route, a unique therapeutic use, or a specific pharmaceutical composition—by establishing its novelty, inventive step, and industrial applicability.

Without direct access to the complete patent document, the scope can be inferred based on typical patent structures:

  • Claims’ wording: The claims define the precise coverage, typically encompassing a chemical compound or a therapeutic method.
  • Description details: The specifications describe the chemical structure, synthesis pathways, pharmacological data, and potential indications, providing contextual support for the scope.
  • Legal boundaries: The scope is ultimately determined by the claim language—broad claims may cover a class of compounds, while narrower claims may target specific derivatives.

Claims Analysis

Claims Most Likely Cover:

  1. Chemical Compound or Class:
    A core claim probably protects a novel chemical entity, possibly a small molecule or peptide with therapeutic activity. Such claims usually specify structural features — for example, a particular core scaffold with optional substitutions.

  2. Method of Synthesis:
    Claims could cover a specific synthetic route that yields the compound efficiently, enhancing patent robustness by deterring design-arounds and encouraging manufacturing exclusivity.

  3. Therapeutic Use or Method of Treatment:
    Use claims safeguard the method of administering the compound to treat specific conditions, e.g., cancer, neurological disorders, or infectious diseases.

  4. Pharmaceutical Composition:
    Claims may also include formulations—assuming stable, bioavailable, and manufacturable combinations.

Claim Strategy:

  • The claims likely balance broadness and specificity, aiming to prevent competitors from circumventing patent rights while maintaining validity over prior art.
  • Dependent claims probably narrow the scope further by covering specific substituents, dosages, or indications.

Potential Vulnerabilities & Considerations:

  • The scope must navigate prior art references, especially those involving similar chemical scaffolds or therapeutic methods.
  • Patentability hinges on demonstrated novelty and inventive step, especially if related patents or scientific publications preexist.

Patent Landscape Analysis

Position within the Patent Ecosystem:

  • The patent landscape for this particular compound or class typically involves:
    • Prior art references—existing patents covering related molecules or uses.
    • Related patents from the same assignee—indicating a portfolio strategy to maximize coverage.
    • Patent filings from competitors—highlighting potential for overlapping claims or freedom-to-operate considerations.

Comparative and Launch Strategies:

  • The discrete scope of the claims probably complements broader patent families or subsidiaries, optimizing territorial coverage across jurisdictions.
  • The timing of filing and grant suggests an effort to protect advancements early, especially before clinical trials or commercialization.

Overlap and Competition:

  • Similar compounds or therapeutic areas often feature overlapping patents; therefore, patent landscaping tools such as Lens or PatSnap can reveal potential conflicts or freedom-to-operate gaps.
  • Overlapping claims in other jurisdictions may influence the U.S. patent's strength and enforceability.

Legal and Commercial Implications:

  • The patent’s broad claims could serve as a platform for licensing or partnerships.
  • Narrower claims provide defensibility but could be circumvented or challenged.

Implications for Industry Stakeholders

  • Pharmaceutical Companies: Recognize the patent’s protective scope for development or licensing programs.
  • Generic Manufacturers: Identify potential design-arounds or patent challenges.
  • Investors: Assess patent strength when evaluating product pipelines.

Conclusion

U.S. Patent 11,419,842 fortifies a proprietary position around a novel drug candidate or formulation. Its claims likely encompass specific chemical structures, synthesis methods, or uses, vital for establishing exclusivity in a competitive landscape. The patent landscape indicates a strategic play in a complex environment populated by similar innovations, with the scope carefully crafted to balance breadth and defensibility.


Key Takeaways

  • The patent’s claims are critical to its commercial leverage, emphasizing chemical uniqueness and therapeutic application.
  • Its position within the patent ecosystem influences licensing, enforcement, and development strategies.
  • Strategic narrowing or broadening of claims determines the patent’s resilience against invalidation or circumvention.
  • Continuous monitoring of related patents can uncover potential conflicts or licensing opportunities.
  • Early filing and comprehensive claim drafting are essential for maximizing patent protection.

FAQs

1. What are the typical elements included in the claims of pharmaceutical patents like 11,419,842?
Claims generally specify the chemical structure, synthesis method, pharmaceutical formulation, or therapeutic use, aiming to define the scope of exclusivity precisely.

2. How does the scope of a patent impact its enforceability?
Broader claims can offer widespread protection but may be more vulnerable to invalidation if they overlap with prior art; narrower claims might be easier to defend but provide limited coverage.

3. What strategies do patent holders use to strengthen their patent portfolios in pharmaceuticals?
Patents are strategically filed covering multiple aspects—compound structure, synthesis, use, formulations—to create overlapping layers of protection and deter competitors.

4. How does the patent landscape affect drug development in the same therapeutic area?
It guides innovation pathways, highlights potential freedom-to-operate issues, and informs licensing or collaboration opportunities.

5. When is the optimal time to file a patent application for a new drug candidate?
Filing should occur early in the development process, ideally before significant disclosure or public use, to secure priority and maximize protection.


References

  1. [Insert detailed legal document and patent prosecution references here]
  2. [Analyses from patent databases such as Lens.org or PatSnap]
  3. [Relevant scientific literature, if applicable]
  4. [Regulatory filings or company disclosures, if available]

Note: Due to limited information without the full patent text, this analysis hinges on standard practices and inferred details; access to the full patent document would enable a more precise evaluation.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 11,419,842

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Zhuhai BEIZRAY docetaxel SOLUTION;INTRAVENOUS 218711-001 Oct 23, 2024 RX Yes Yes 11,419,842 ⤷  Get Started Free Y TREATMENT OF NON-SMALL CELL LUNG CANCER ⤷  Get Started Free
Zhuhai BEIZRAY docetaxel SOLUTION;INTRAVENOUS 218711-001 Oct 23, 2024 RX Yes Yes 11,419,842 ⤷  Get Started Free Y TREATMENT OF PROSTATE CANCER ⤷  Get Started Free
Zhuhai BEIZRAY docetaxel SOLUTION;INTRAVENOUS 218711-001 Oct 23, 2024 RX Yes Yes 11,419,842 ⤷  Get Started Free Y TREATMENT OF BREAST CANCER ⤷  Get Started Free
Zhuhai BEIZRAY docetaxel SOLUTION;INTRAVENOUS 218711-001 Oct 23, 2024 RX Yes Yes 11,419,842 ⤷  Get Started Free Y TREATMENT OF GASTRIC ADENOCARCINOMA ⤷  Get Started Free
Zhuhai BEIZRAY docetaxel SOLUTION;INTRAVENOUS 218711-001 Oct 23, 2024 RX Yes Yes 11,419,842 ⤷  Get Started Free Y TREATMENT OF HEAD AND NECK CANCER ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.