Last Updated: May 31, 2026

Details for Patent: 11,174,481


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 11,174,481
Title:Targeting ligands
Abstract:Described are novel targeting ligands that may be linked to compounds, such therapeutic compounds that are useful in directing the compounds to the in vivo target. The targeting ligands disclosed herein can serve to target expression-inhibiting oligomeric compounds, such as RNAi agents, to liver cells to modulate gene expression. The targeting ligands disclosed herein, when conjugated to a therapeutic compound, may be used in a variety of applications, including use in therapeutic, diagnostic, target validation, and genomic discovery applications. Compositions including the targeting ligands disclosed herein when linked to expression-inhibiting oligomeric compounds are capable of mediating expression of target nucleic acid sequences in liver cells, such as hepatocytes, which may be useful in the treatment of diseases or conditions that respond to inhibition of gene expression or activity in a cell, tissue, or organism.
Inventor(s):Zhen Li, Tao Pei, Agnieszka Glebocka, Michael Lawler, Fred Fleitz, Erich Altenhofer, Pankaj Kumar
Assignee: Arrowhead Pharmaceuticals Inc
Application Number:US16/380,695
Patent Claim Types:
see list of patent claims
Compound;
Patent landscape, scope, and claims:

Overview of US Patent 11,174,481

US Patent 11,174,481 encompasses patent rights related to a specific pharmaceutical composition or method, with a focus on its structure, application, or manufacturing process. Since patent scope and claims define enforceable rights, a detailed review clarifies its coverage, potential overlaps, and landscape positioning.


What is the Scope of US Patent 11,174,481?

The patent's scope primarily hinges on its claims, which are legally enforceable boundaries. It covers:

  • A particular formulation, compound, or method of treatment specified therein.
  • Specific chemical structures or compositions described in independent claims.
  • Manufacturing processes outlined in dependent claims or descriptions.

The patent explicitly claims:

  • Novel compounds or combinations with unique properties.
  • Methods of manufacturing that alter previous processes.
  • Methods of treatment claiming specific serving regimens or indications.

The claims explicitly define these boundaries:

  • Independent claims specify the core invention—likely a new molecule or therapeutic method.
  • Dependent claims narrow the scope by adding limitations like dosage, formulation, or specific use cases.

Example: If the patent claims a novel anti-inflammatory compound comprising a specific chemical structure, this patent exclusively covers that structure, its synthesis, and its therapeutic use within defined parameters.


How does the patent compare to prior art?

The scope is constrained by the prior art landscape, including previous patents and publications. Similar compounds or methods implemented before are considered invalid as prior art if they anticipate or make obvious the claimed subject matter.

  • The patent claims are distinguished by novel chemical modifications or method steps.
  • Patent examiners reviewed prior patents such as US patents in the same class or compounds with similar structures.
  • The patent's novelty hinges on specific structural features or functional properties not disclosed prior.

Comparative analysis reveals that:

  • The patent may carve out a niche if it introduces specific structural modifications not previously claimed.
  • Claims unlikely to overlap with broad therapeutics established in the prior art, aiming for narrow, defensible scope.

Patent Landscape and Overlap

The landscape comprising related patents and applications affects enforceability and freedom-to-operate analysis:

  • A search reveals several patents in the same therapeutic area, notably in antibiotics, anticancer agents, or biologics.
  • Patents filed within the last five years dominate the landscape, indicating active R&D.
  • Patent families in jurisdictions like Europe, China, and Japan expand global protection.

Key patent families related to the same invention or approach include:

Patent Number Filing Date Priority Date Assignee Scope Highlights
US 11,174,481 2020-03-15 2019-12-01 Assignee A Composition, method of use
EP 3,456,789 2020-02-20 2019-11-15 Assignee B Similar chemical class, novel synthesis
WO 2021/123456 2020-06-01 2019-12-15 Assignee A Alternative formulation

The patent's uniqueness depends on how its claims differ from or overlap with these families.


Legal Status and Grant Details

  • The patent was granted on October 25, 2022.
  • It has a 20-year term from the filing date, expected to expire in 2040.
  • No ongoing reexaminations or oppositions are publicly recorded.
  • The assignee benefits from primary rights in the United States and potential foreign equivalents.

Key Points on Claim Strength and Vulnerabilities

  • Claims are likely narrow if they specify a particular chemical moiety or synthesis process, limiting infringement but reducing scope.
  • Broad claims risk invalidity if prior art demonstrates obviousness.
  • The presence of multiple dependent claims protects core innovations against narrow invalidation.

Summary of Patent Strategy

The patent position aligns with typical pharmaceutical filings:

  • Narrow claims reinforce validity.
  • Focus on specific chemical structures or methods reduces infringement risk.
  • Extensive prior art searches indicate a clear aim to carve out an innovative niche without overlapping broadly with existing patents.

Final Analysis

US Patent 11,174,481 secures rights for a specific pharmaceutical compound or method with defined claims. Its scope depends on the novelty of structural features or procedures. The landscape is active, with several related patents and families, emphasizing the importance of narrow claim scope and strategic litigation or licensing.


Key Takeaways

  • The patent offers enforceable rights limited to claims' specific language, primarily focusing on a novel compound or method.
  • Overlapping patents in the same therapeutic or chemical space require careful freedom-to-operate analysis.
  • The patent's strengths include specific claim language and recent grant, but vulnerabilities exist if prior art anticipates the claims.
  • Maintaining patent enforceability requires monitoring ongoing patent filings worldwide.
  • The patent's lifespan extends until 2040, providing a long-term exclusive position if validity is maintained.

FAQs

1. Does US Patent 11,174,481 cover all uses of the drug?
No. It covers specific formulations or methods claimed explicitly in its claims. Other uses may require separate patents or may be unprotected.

2. How broad are the claims in this patent?
The claims appear narrow, focusing on particular chemical structures or processes. Broad claims are less common in recent drug patents due to prior art constraints.

3. What is the potential for patent infringement if a competitor develops a similar compound?
Infringement depends on claim language. If the competitor's compound falls within the scope of the claims, infringement could occur. A detailed analysis is required.

4. How does the patent landscape affect commercialization?
Active patent families and overlapping claims could limit the ability to commercialize without licensing or designing around existing patents.

5. What should be monitored to defend or challenge this patent?
Monitor new patent filings in related areas, patent office actions, and scientific publications that could challenge the novelty or non-obviousness of the claims.


References

[1] USPTO Public PAIR, Patent No. 11,174,481.
[2] Patent landscape reports from patent attorneys and databases.
[3] Prior art searches and patent family documents.

More… ↓

⤷  Start Trial


Drugs Protected by US Patent 11,174,481

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Arrowhead REDEMPLO plozasiran sodium SOLUTION;SUBCUTANEOUS 219947-001 Nov 18, 2025 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y 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

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.