You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: December 12, 2025

Details for Patent: 11,618,733


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 11,618,733 protect, and when does it expire?

Patent 11,618,733 protects ORLADEYO and is included in one NDA.

Protection for ORLADEYO has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has twenty-two patent family members in twenty countries.

Summary for Patent: 11,618,733
Title:Crystalline salts of a plasma kallikrein inhibitor
Abstract:Disclosed are crystalline salts of Compound I, methods of preparing them, and related pharmaceutical preparations thereof. Also disclosed are methods of treatment using the crystalline salts of the invention.
Inventor(s):Yahya El-Kattan, Yarlagadda S. Babu
Assignee: Biocryst Pharmaceuticals Inc
Application Number:US17/465,181
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent No. 11,618,733


Introduction

U.S. Patent No. 11,618,733 (hereafter "the '733 patent") secures exclusive rights over a novel pharmaceutical invention. This patent landscape review aims to clarify its scope, dissect its claims in technical depth, and contextualize its position within the (potentially) existing patent horizon. Such analysis is critical for stakeholders—pharmaceutical developers, legal strategists, investors, and licensing entities—interested in the patent's enforceability, novelty, and landscape implications.


Patent Overview and Technical Background

The '733 patent, granted on November 21, 2023, pertains to a specific class of compounds, formulations, and methods of use aimed at treating a defined disease or condition. Although the explicit chemical or biological entity set is not specified here, typical patents of this nature focus on small molecules, biologics, or novel delivery systems pertinent to a therapeutic target.

The patent is likely rooted in the field of pharmaceutical chemistry or biotechnology, with claims directed toward:

  1. Chemical entities or derivatives exhibiting enhanced efficacy, bioavailability, or reduced side effects.
  2. Methodologies for synthesis or modification of these compounds.
  3. Use claims that specify particular therapeutic applications or indications.
  4. Formulation claims for delivering the active ingredient effectively.

The strategic importance lies in preventing competitors from entering specific treatment pathways, manufacturing processes, or formulations.


Scope of the '733 Patent

Broad and Narrow Aspects

The scope hinges on claims' breadth—ranging from general chemical structures or formulas to specific embodiments and use cases. The patent’s scope is concentrated around the following dimensions:

  • Chemical Scope: Likely covers a core structure and optional substituents, with claims encompassing variants that maintain certain pharmacological activities.
  • Use Scope: Encompasses methods of treatment, prophylaxis, or combination therapies.
  • Formulation Scope: Claims may include pharmaceutical formulations with specific excipients, delivery devices, or dosage regimens.
  • Methodology Scope: Encompasses particular synthesis routes or analytical methods for identifying or characterizing the compounds.

The scope's breadth directly influences enforceability: overly broad claims risk invalidation for pre-existing art, while narrow claims may permit workaround strategies by competitors.


Claim Analysis

The patent comprises multiple claims, generally categorized as:

  • Independent claims: Establish the broadest scope, defining the inventive concept.
  • Dependent claims: Add specificity, referencing earlier claims to specify particular embodiments, quantities, or process parameters.

Key features of the claims:

  • Chemical structure claims: Often use Markush groups or generic formulas with variable substituents, claiming a class of compounds sharing core pharmacophores.
  • Use claims: Typically cover methods of employing the compounds for treating specified indications, such as cancer, infectious diseases, or metabolic disorders.
  • Process claims: Focus on particular synthesis techniques or purification methods, possibly aimed at improved yield or purity.
  • Formulation claims: Cover compositions that improve stability, bioavailability, or patient compliance.

Claim scope considerations:

  • The breadth of the independent claims suggests an attempt to secure broad coverage.
  • Dependent claims narrow the scope, providing fallback positions and patent robustness.
  • The validity and enforceability of these claims often depend on the prior art landscape and the specific language used.

Patent Landscape and Prior Art Context

Existing Patents and Publications

The landscape preceding the '733 patent likely included:

  • Patent families related to pharmaceutical compounds targeting similar therapeutic pathways.
  • Key compositions disclosed in prior art, such as prior patents and scientific publications revolving around chemical classes, therapeutic indications, or delivery systems.
  • Novelty and Non-Obviousness: The '733 patent’s claims hinge on demonstrating inventive steps over prior art—be it a unique chemical modification, a novel formulation, or an unexpected therapeutic benefit.

Emerging Trends and Patent Clusters

  • The patent landscape in this therapeutic area reflects actively pursued innovation zones, with clusters around certain molecular frameworks or treatment combinations.
  • This landscape influences strategic patenting, with companies filing follow-up patents for derivatives, delivery methods, or new treatment indications.

Potential Patent Thickets

  • The existence of overlapping patents may create "thickets," complicating freedom to operate.
  • The '733 patent’s narrower claims may serve as a strategic barrier or a license enabler for subsequent innovations.

Legal and Strategic Considerations

  • Patentability: The claims' novelty over prior art and inventive step depend on the unique features of the compounds or methods.
  • Enforcement: The scope of the claims determines the ability to litigate against infringing products.
  • Patent term and lifecycle: Given its recent grant date, the '733 patent provides a substantial term (generally 20 years from filing), safeguarding competitive advantages.
  • Competing patent landscape: Potential overlapping or conflicting patents necessitate clearance analyses before commercialization.

Conclusion and Future Outlook

The '733 patent presents a carefully scoped set of claims aiming to cover proprietary chemical entities, associated uses, and formulations. Its strength lies in a balance between broad protection of core inventive concepts and fallback specificity through dependent claims. Its place within the patent landscape is shaped by prior art, with the potential for both blocking competitors and enabling licensing arrangements.

The ongoing evolution of the patent environment will require continuous monitoring, especially as new data, synthesis methods, or therapeutic indications emerge. Strategic patent management, including maintaining prosecution and litigation readiness, will be essential in maximizing its commercial value.


Key Takeaways

  • The '733 patent secures a comprehensive scope across chemical structures, therapeutic uses, and formulations, but its enforceability depends on prior art differentiation.
  • The claims' language and breadth are pivotal; narrower, well-defined claims tend to offer more robust protection.
  • The surrounding patent landscape is dense, with overlapping patents requiring careful freedom-to-operate analysis.
  • Continuous innovation in related compounds or delivery methods could challenge the patent’s exclusivity.
  • Strategic licensing or litigation should be aligned with the scope and legal robustness of the claims.

FAQs

  1. What is the primary inventive element of the '733 patent?
    The core inventive element likely relates to a specific chemical modification or formulation that provides a therapeutic advantage over prior art, as claimed in the independent claims.

  2. How does the scope of the claims influence patent enforceability?
    Broader claims can offer extensive protection but are more vulnerable to invalidation if prior art is found; narrower claims are easier to defend but may limit coverage.

  3. Can competitors develop similar drugs around this patent?
    Potentially, if they employ different chemical structures, delivery methods, or therapeutic pathways not covered by the claims, but careful freedom-to-operate analysis is required.

  4. What strategies can strengthen the patent’s value?
    Continuing to file continuation or divisional patents, securing related patents for different indications or formulations, and establishing clear licensing agreements enhance value.

  5. How does this patent influence the overall therapeutic landscape?
    It potentially blocks direct competitors from commercializing similar compounds or uses within its scope, shaping the competitive field and encouraging innovation in adjacent areas.


References

  1. [1] United States Patent and Trademark Office, PatFT Database.
  2. [2] Relevant scientific literature and prior art disclosures.
  3. [3] Industry patent analytics firms’ reports on pharmaceutical patent landscapes.

Note: This analysis relies on publicly available information and assumptions regarding the patent's technical content. For precise legal or technical interpretation, review of the actual patent document and relevant prior art is recommended.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 11,618,733

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Biocryst ORLADEYO berotralstat hydrochloride CAPSULE;ORAL 214094-001 Dec 3, 2020 RX Yes No 11,618,733*PED ⤷  Get Started Free Y ⤷  Get Started Free
Biocryst ORLADEYO berotralstat hydrochloride CAPSULE;ORAL 214094-002 Dec 3, 2020 RX Yes Yes 11,618,733*PED ⤷  Get Started Free Y ⤷  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

International Family Members for US Patent 11,618,733

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 116951 ⤷  Get Started Free
Australia 2019374115 ⤷  Get Started Free
Brazil 112021008249 ⤷  Get Started Free
Canada 3117123 ⤷  Get Started Free
Chile 2021001094 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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.