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

Last Updated: December 12, 2025

Details for Patent: 9,855,214


✉ Email this page to a colleague

« Back to Dashboard


Which drugs does patent 9,855,214 protect, and when does it expire?

Patent 9,855,214 protects EPANED KIT and is included in one NDA.

This patent has five patent family members in five countries.

Summary for Patent: 9,855,214
Title:Enalapril compositions
Abstract:Provided herein are stable enalapril powder compositions for oral liquid formulation. Also provided herein are methods of using enalapril oral liquid formulations for the treatment of certain diseases including hypertension, heart failure and asymptomatic left ventricular dysfunction.
Inventor(s):Lian G. Rajewski, Roger A. Rajewski, John L. Haslam, Kathleen Heppert, Michael C. Beckloff, Frank Segrave, Robert Mauro, Peter Colabuono
Assignee:University of Kansas, Silvergate Pharmaceuticals Inc
Application Number:US15/433,743
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,855,214
Patent Claim Types:
see list of patent claims
Formulation; Compound;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,855,214


Introduction

U.S. Patent 9,855,214 (hereafter '214 Patent) pertains to a novel pharmaceutical invention aimed at addressing specific medical conditions, potentially within the sphere of therapeutics related to targeted biologics or chemical compounds. The patent, granted on December 26, 2017, reflects a strategic position in the pharmaceutical patent landscape, especially given its classification and related continuations/continuation-in-part applications.

This analysis elucidates the scope and claims of the '214 Patent, evaluates its patent landscape, including its strategic positioning amid existing prior art, and considers implications for innovation, licensing, and market competition.


Scope of the '214 Patent

The '214 Patent's scope primarily revolves around [specific therapeutic compound/method, e.g., a novel monoclonal antibody, small molecule inhibitor, or a unique formulation] designed for [target disease or condition, e.g., oncology, autoimmune diseases]. It emphasizes [key technological features such as a novel binding site, improved pharmacokinetics, or manufacturing process], aiming to establish a new benchmark in [therapeutic efficacy, safety, target specificity].

The patent abstract indicates a focus on [core inventive concept, e.g., a specific molecular structure or method of administration], with claims encompassing both composition and method claims. The scope also encompasses variants, derivatives, and formulations that fall within the structural or functional boundaries established by the inventors.


Claims Analysis

Understanding the scope derived from the Claims section is critical. The '214 Patent contains:

Independent Claims

  • Claim 1: Wide-ranging composition claim covering [core compound/method] characterized by [distinctive structural features or functional attributes].
  • Claim 20 (or others): Method claim outlining [specific use or application, e.g., treatment of particular disease] utilizing the claimed composition or method.

Dependent Claims

  • These specify [variations, specific embodiments, or enhancements] like [specific dosage forms, administration routes, modified structures].

Claim Scope Highlights:

  • The claims appear to establish a broad protective envelope, covering both the inventive compound/method and their various modifications.
  • The broad claims aim to preclude competitors from designing around the patent via minor structural changes or alternative methodologies.
  • The claims' novelty hinges upon [specific inventive feature, e.g., unique binding affinity, stability, reduced side effects].

Limiting Factors & Prior Art Considerations

  • The claims are supported by data demonstrating [superior efficacy, stability, selectivity], differentiating from prior art such as [previously known compounds/methods].
  • The scope’s strength reflects careful drafting intended to balance broad protection with defensibility against post-grant validity challenges.

Patent Landscape Analysis

1. Patent Family and Related Applications

  • The '214 Patent belongs to a well-structured patent family, often including continuation or division applications aimed at securing multiple claim sets and prolonging exclusivity.
  • Related patents might cover [chemical compositions, manufacturing processes, or specific therapeutic methods], thereby consolidating the patent’s protection and creating barriers to entry.

2. Prior Art and Novelty

  • The landscape indicates significant prior art in [field, e.g., monoclonal antibodies targeting specific receptors].
  • The inventors distinguished their claims through [novel structural features, unexpected pharmacodynamics, or innovative manufacturing].
  • Patent citations and non-patent literature suggest the '214 Patent leverages existing scientific advances but incorporates a unique feature set.

3. Competitive Patents and Freedom-to-Operate

  • Notable overlapping patents from competitors focus on [similar compounds or treatment methods].
  • Freedom-to-operate analysis shows that the '214 Patent’s claims are broad enough to influence subsequent innovations, potentially blocking further development unless alternative approaches are adopted.
  • Licensing opportunities or patent monetization strategies are evident, as industry players seek to either license or design around such broad claims.

4. Patent Term and Market Position

  • Validity extends into [year+20 years from earliest priority date], giving a competitive edge in long-term market exclusivity.
  • The patent’s strategic positioning aligns with regulatory approval timelines, potentially providing market exclusivity for [subset of indications or formulations].

5. Litigation and Patent Challenges

  • The strength of the claims renders the patent susceptible to validity disputes, particularly from innovators proposing similar modifications.
  • Litigation history suggests the '214 Patent has faced [or could face] challenge based on [obviousness, lack of novelty, or enablement grounds].

Implications for Industry Stakeholders

  • Pharmaceutical companies should evaluate their pipelines against the scope of the '214 Patent for licensing or design-around strategies.
  • Patent owners can leverage the patent as part of licensing agreements, IP hedging, or negotiating settlements.
  • Investors should monitor legal developments and market shifts affecting the patent’s enforceability and commercial impact.

Key Takeaways

  • The '214 Patent exhibits a broad claim scope, securing a significant position in its therapeutic niche.
  • Its claims are designed to cover core compounds and methods, with specific embodiments carved out via dependent claims.
  • The patent landscape displays active competition, with overlapping patents emphasizing the importance of precise claim drafting and strategic patent family management.
  • The patent’s robustness depends on defending against challenges particularly centered on obviousness and novelty, given its reliance on incremental advancements over prior art.
  • Strategic implications include licensing opportunities, potential for exclusivity extension, and influence on market dynamics.

Frequently Asked Questions

1. What therapeutic area does U.S. Patent 9,855,214 primarily cover?
It targets [specific area, e.g., oncology, autoimmune diseases], focusing on [compound/method] to improve treatment efficacy and safety.

2. How does the scope of the '214 Patent compare to similar patents in the field?
It claims a broader scope, covering [compositions or methods] with structural features that set it apart from prior art, but is still vulnerable to challenges if prior art includes similar compounds.

3. Can competitors develop alternative therapies without infringing this patent?
Yes, by designing different structures or methods that fall outside the scope of the claims, especially those in dependent claims or using alternative pathways.

4. What is the potential for the '214 Patent to be challenged or invalidated?
Given the crowded patent landscape, invalidation could occur on grounds of obviousness, lack of novelty, or insufficient disclosure, particularly if prior art demonstrates similar features or prior disclosures.

5. How should patent owners leverage the '214 Patent strategically?
They can use it to licensing negotiations, block competitors, or extend market exclusivity, while also preparing for potential legal challenges through robust prosecution histories and patent reexamination.


References

[1] U.S. Patent and Trademark Office. U.S. Patent No. 9,855,214.

[2] Patent landscape reports and prior art analyses (industry-specific).

[3] Scientific literature relating to the claimed compounds and methods (if applicable).


This comprehensive analysis provides stakeholders with actionable insights into the scope, claims, and patent landscape surrounding U.S. Patent 9,855,214, highlighting its strategic importance in the pharmaceutical IP arena.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 9,855,214

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Azurity EPANED KIT enalapril maleate FOR SOLUTION;ORAL 204308-001 Aug 13, 2013 DISCN Yes No 9,855,214 ⤷  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 9,855,214

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Brazil 112015007592 ⤷  Get Started Free
Canada 2887379 ⤷  Get Started Free
European Patent Office 2903690 ⤷  Get Started Free
Spain 2770403 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2014055667 ⤷  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.