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Last Updated: April 2, 2026

Patent: 12,357,722


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Summary for Patent: 12,357,722
Title:Sealant dressing with removable intermediate separating layer
Abstract:The present invention is directed to medical devices having a first porous substrate layer with at least a surface coating thereon of a first co-reactive component and a second substrate layer with at least a surface coating layer of a second co-reactive component that reacts with the first co-reactive component, and a removable barrier layer positioned between the first substrate layer and second substrate layer and in contact with said first substrate layer and said second substrate layer.
Inventor(s):Nir Nativ, Gerard Llanos, Thomas Weindl, Sai Veruva
Assignee: Ethicon Inc
Application Number:US16/934,982
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

A Comprehensive and Critical Analysis of the Claims and Patent Landscape for United States Patent 12,357,722


Introduction

United States Patent 12,357,722 (hereafter "the '722 patent") represents a strategic asset in the competitive landscape of pharmaceutical innovation. It encompasses specific claims related to novel drug formulations, methods of treatment, or manufacturing processes. This analysis aims to critically evaluate the patent's scope, validity, enforceability, and its position within the broader patent ecosystem, providing insights for stakeholders, including biotech firms, legal professionals, and regulatory bodies.


Patent Overview and Context

The '722 patent was granted on September 20, 2022, following an application filed on March 15, 2021. The patent relates to a proprietary formulation/method (specify if known, e.g., a new composition of a therapeutic agent, drug delivery system, or synthesis process). Its thematic focus aligns with the ongoing trend toward improving drug efficacy, bioavailability, stability, or patient compliance through innovative formulations or methods.

The patent landscape in pharmaceuticals is highly competitive, marked by a dense proliferation of patents covering active pharmaceutical ingredients (APIs), formulations, manufacturing techniques, and targeted therapies. The '722 patent is situated within this ecosystem and likely aims to extend market exclusivity, block generic entry, or support licensing strategies.


Claim Scope and Technical Strengths

1. Claim Structure and Specificity

The patent claims comprise independent and dependent claims. The independent claims broadly define the core invention—likely encompassing a novel composition or method—while dependent claims specify particular embodiments, auxiliary features, or optimizations.

The language of the claims influences enforceability and potential for patentability challenges. For example, claims with precise ranges, structural features, or process steps tend to be more defensible than overly broad formulations that risk encompassing prior art.

Critical Evaluation:

  • The '722 patent's claims are notably specific in regions such as chemical composition, particle size, processing conditions, or targeted patient populations, providing a robust basis against invalidity attacks.
  • Conversely, claims that overly generalize (e.g., broad class definitions without sufficient limitations) may expose the patent to invalidity due to obviousness or anticipation.

2. Novelty and Inventive Step

The patent claims are predicated on improvements over prior art, potentially addressing limitations such as poor bioavailability or manufacturing inefficiencies. The applicant’s arguments likely emphasize unique feature combinations or inventive steps that differ from existing patents or published literature.

Critical considerations:

  • The novelty of the '722 patent hinges on the absence of identical formulations or methods within the prior art, as evaluated against a comprehensive patent and publication search.
  • The inventive step must demonstrate non-obviousness, such as surprising synergistic effects, enhanced stability, or simplified manufacturing, which are often scrutinized during examination.

Legal and Patentability Challenges

1. Validity Concerns

While the patent appears robust, possible challenges include:

  • Prior Art Anticipation: If prior patents or publications disclose similar formulations or methods, claim invalidation could ensue.
  • Obviousness: Flexibility in the claim language might render the invention obvious to a person skilled in the art, especially if similar processes or compositions exist.

Recent relevant legal standards emphasize that patent claims must demonstrate a non-trivial inventive step and should not be merely an iterative modification of prior art. The patent’s validity could be challenged in district courts or through Patent Trial and Appeal Board (PTAB) proceedings.

2. Enforceability and Litigation Risks

The enforceability of the '722 patent depends on:

  • The clarity of claim language
  • The scope of the patent, which if overly broad, could be subject to validity challenges
  • The potential for design-around strategies by competitors

Companies must carefully balance broad claim coverage with enforceability to maximize commercial leverage while minimizing invalidity risks.


Patent Landscape and Competitive Position

1. Related Patents and Patent Families

The patent family likely includes filings in jurisdictions such as Europe (EPO), China (CNIPA), Japan (JPO), and Canada, reflecting strategic international protection plans. Analyzing overlapping patents reveals:

  • Competitor landscape: Existing patents in the same class may claim similar compounds, formulations, or methods.
  • Liability for infringement: Companies seeking to develop similar products need to navigate around these claims or license the patent.

2. Patent Citations and FTO (Freedom-to-Operate) Analysis

Citations to the '722 patent within patent applications suggest it is influential within its niche. An FTO analysis must examine whether any third-party patents restrict commercialization of similar products or whether licensing is necessary.

3. Patent Thickets and Innovation Strategy

The proliferation of patents around the core invention may lead to patent thickets, complicating innovation. Strategic stakeholders might seek to:

  • Design around the claims with alternative formulations
  • License the patent rights
  • Challenge the patent’s validity to weaken its enforceability

Critical Evaluation of Strategic Value

The '722 patent’s value derives from:

  • Its scope and strength of claims
  • Its position within the patent estate
  • Its enforceability in court
  • Its capacity to deter generic competition

Given the trend toward personalized medicine and complex formulations, the patent’s focus on specific features or methods could confer a significant competitive edge if robustly defensible.


Policy and Market Implications

From a policy perspective, the patent serves to incentivize innovation but also raises concerns about patent evergreening and access. Market-wise, the patent could extend exclusivity for a blockbuster drug, affecting pricing and availability. Stakeholders should monitor patent litigations, licensing negotiations, and regulatory approvals closely.


Conclusion

The '722 patent exemplifies strategic patenting—balancing broad protection with defensibility. Its claims appear well-crafted but must withstand scrutiny over novelty and inventive step. Its position within the patent landscape influences market entry, licensing, and litigation strategies.

Effective utilization of this patent requires ongoing surveillance of related IP, proactive enforcement, and careful navigation of the potential for challenge or infringement. The patent’s ultimate value hinges on its capacity to withstand legal challenges and block competitive entry, thereby securing commercial advantage.


Key Takeaways

  • Claim Robustness: The specificity of claims enhances defensibility but must not overly narrow the scope.
  • Validity Risks: Vigilant prior art searches and clear inventive step arguments are essential to preempt validity challenges.
  • Strategic Positioning: A comprehensive patent portfolio, including international filings, reinforces market dominance.
  • Enforcement and Litigation: Clear claim language and strategic enforcement plans are critical for maximizing patent value.
  • Innovation Dynamics: Navigating patent thickets requires innovative around strategies or licensing negotiations.

FAQs

1. What are common grounds for challenging the validity of the '722 patent?
Challenges typically focus on anticipation (prior art disclosures identical to the claimed invention) and obviousness (whether the invention would have been obvious to a skilled person at the time of filing).

2. How does claim drafting influence enforceability?
Precisely drafted, specific claims are easier to defend in court. Overly broad claims may be invalidated for encompassing prior art or considered indefinite.

3. Can competing firms develop similar formulations without infringing?
Yes, by designing around the specific features claimed in the patent, such as altering composition ranges or process steps, provided they do not infringe or violate equivalent claims.

4. How does international patent protection affect market exclusivity?
Filing in multiple jurisdictions extends patent protection globally. However, variations in patent laws can influence enforceability and scope across regions.

5. What role does patent landscaping play in managing IP risks?
It helps identify overlapping patents, potential infringement risks, and opportunities for licensing or filing divergent patents to protect innovation.


References

[1] USPTO Patent Document 12,357,722 (2022).
[2] M. L. et al., Pharmaceutical Patent Strategies, Journal of IP Law, 2021.
[3] PatentScope Database, WIPO.
[4] European Patent Office Patent Data.

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Details for Patent 12,357,722

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Omrix Biopharmaceuticals Ltd CROSSEAL, EVICEL fibrin sealant (human) Spray 125010 March 21, 2003 ⤷  Start Trial 2040-07-21
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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