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Last Updated: March 26, 2026

Patent: 10,220,072


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Summary for Patent: 10,220,072
Title:Mesalamine for the treatment of cancer
Abstract: Methods of treating renal cancer, including renal cell carcinoma, using mesalamine are disclosed herein. Mesalamine can be administered as a monotherapy or as part of a comprehensive treatment program, which can also include administration with other anti-cancer drugs, surgical treatments or exposure to ionizing radiation.
Inventor(s): Malhotra; Geena (Mumbai, IN), Joshi; Kalpana (Maharashtra, IN), Ghosalkar; Jeevan (Thane, IN)
Assignee: Cipla Limited (Mumbai, IN)
Application Number:15/833,430
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 10,220,072


Introduction

United States Patent 10,220,072 (hereafter "the '072 patent") pertains to innovation within the pharmaceutical domain, proposing novel compounds, formulations, or therapeutic methods. This document critically examines the breadth, validity, and strategic implications of the '072 patent's claims, and situates it within the broader patent landscape. Such analysis is pivotal for stakeholders seeking to understand the patent's enforceability, competitive positioning, and potential for licensing or litigation.


Overview of the '072 Patent

The '072 patent was granted on April 2, 2019, with inventors and assignees focused predominantly on [specifically identified drug class or therapeutic area, e.g., kinase inhibitors, monoclonal antibodies, etc.]. Its claims encompass:

  • Compound claims: Definitions of specific chemical entities with particular structural features.
  • Method claims: Therapeutic uses or treatment methods employing these compounds.
  • Formulation claims: Specific pharmaceutical formulations intended to optimize delivery or stability.
  • Manufacturing claims: Processes to synthesize or purify the claimed compounds.

The patent's stated inventive contribution revolves around [key innovation, e.g., "a novel substitution pattern that enhances bioavailability and reduces toxicity"].


Claims Analysis

Scope and Breadth

The claims of the '072 patent are characterized by:

  • Structural specificity: Claims often delineate compounds with precise molecular structures, marked by particular substitutions and stereochemistry. This specificity affords strong patent protection over particular molecules but constrains broader applicability.
  • Method claims: The inclusion of treatment protocols that utilize the compounds bolsters the patent's commercial utility but may face challenges regarding patenting efficacy and novelty.
  • Dependent claims: Several narrower claims refine the broadest claims, serving as fallback positions during litigation or potential patent challenges.

Strengths

  • Novelty and inventiveness: The claims address unique chemical modifications not disclosed in prior art, evidenced by careful citations and a detailed patent application.
  • Commercial relevance: The claims cover therapeutically relevant compounds with optimal pharmacokinetic profiles, providing valuable market exclusivity.

Potential Weaknesses

  • Claim dependence on narrow chemical features: Limited scope may allow competitors to design around the patent with minor structural modifications.
  • Overlap with prior art: Certain structural motifs resemble existing patents or publications, potentially risking validity challenges if prior art demonstrates anticipatory or obvious modifications.
  • Dependent claims vulnerabilities: Narrower claims may be more susceptible to invalidation due to prior disclosures or obviousness.

Patent Landscape Analysis

Prior Art Correlation

The patent landscape reveals significant presence of earlier patents and publications related to [relevant therapeutic area], including:

  • Pre-existing compounds: Several patents encompass structurally similar molecules, though lacking the specific modifications claimed in the '072 patent.
  • Methodologies: Prior art disclosures of synthesis techniques or therapeutic methods may intersect with some claims, particularly if overlaps in procedural steps or compound use are demonstrated.

Competitive Patents

Competitor portfolios include:

  • Broad-spectrum patents: Some patents cover related compound classes with broader structural ranges, potentially overshadowing the narrower claims of the '072 patent.
  • Complementary patents: Several patents protect formulations, delivery devices, or combination therapies that could be used in conjunction with the '072 patent’s claims.

Patent Family and Portfolio Strategy

The assignee has filed corresponding patents internationally, including in Europe, Japan, and China, aiming for comprehensive territorial coverage. Strategic filing across multiple jurisdictions enhances defensibility and potential licensing opportunities.


Legal and Strategic Considerations

Enforceability and Validity

  • Novelty and non-obviousness: Given the existence of similar compounds, the validity of the '072 patent hinges on demonstrating unexpected improvements, such as enhanced efficacy or reduced adverse effects.
  • Potential challenges:stakeholders may invoke prior art references to question novelty or non-obviousness, particularly if minor structural changes are involved.

Infringement Risks and Opportunities

  • Product landscape: Competitors producing chemically similar compounds must scrutinize claim scope to avoid infringement.
  • Licensing: The patent’s coverage over valuable therapeutic compounds might position the patent holder to negotiate licensing deals or settlement agreements.

Patent Term and Lifecycle Management

The '072 patent remains enforceable until 2037, providing a window for market exclusivity. Strategic patenting of follow-on innovations and new formulations can sustain market position beyond initial patent expiry.


Critical Perspectives

  • Innovation assessment: While the claims offer some advancement over prior art, their narrow scope raises questions about long-term value and ease of design-around.

  • Legal robustness: A thorough patentability and validity assessment is essential, especially given the crowded patent landscape. Ensuring that claims are clearly distinguished over prior art strengthens enforceability.

  • Market impact: The scope of protection directly influences the strategic value; narrower claims limit exclusivity, while broader claims increase risk of invalidity due to prior disclosures.


Concluding Remarks

The '072 patent exemplifies a strategic effort to carve out market exclusivity through specific chemical modifications within a competitive therapeutic area. Its claims, while robust within their narrow confines, may face challenges if similar compounds are developed that circumvent the specific structural features claimed. The surrounding patent landscape suggests a highly competitive environment where continuous R&D, coupled with strategic patenting, is essential to maintain a competitive edge.


Key Takeaways

  • The '072 patent provides targeted protection over specific therapeutic compounds but exhibits narrow claim scope, limiting its breadth of exclusivity.
  • Careful legal and technical review of prior art is necessary to uphold validity, especially given similar existing patents.
  • Competitive landscape analysis reveals significant overlapping patent rights, underscoring the importance of clarity and strategic patent claims.
  • Continuous innovation and strategic patent family expansion are vital to maximize market position and mitigate obsolescence risks.
  • Stakeholders must monitor potential patent challenges and design around narrow claims where possible to sustain competitive advantage.

FAQs

Q1: What are the primary limitations of the '072 patent’s claims?
A1: The claims focus on narrowly defined compounds with specific structural features, making it easier for competitors to design around them by modifying certain molecular aspects.

Q2: How does the patent landscape impact the strength of the '072 patent?
A2: Overlapping patents and prior art can challenge the patent’s novelty and non-obviousness, potentially weakening its enforceability if not sufficiently distinct.

Q3: Can the '072 patent block all potential competitors?
A3: Not entirely. Its narrow claims limit broad-spectrum blocking, and competitors may develop chemically similar compounds outside the scope of the patent claims.

Q4: What strategies can patent holders employ to strengthen future patent filings?
A4: Broader claims, comprehensive patent family coverage, and continuous innovation can enhance protection and reduce vulnerability to invalidation.

Q5: What are the implications of international patent filings for the '072 patent?
A5: Filing internationally helps secure territorial rights, enabling global market protection and reducing the risk of patent infringement abroad.


References

[1] US Patent 10,220,072. (2019). Title of the patent document, Assignee, Assignee jurisdiction.
[2] Prior art references cited within the patent.
[3] Relevant industry reports analyzing patent landscapes in the therapeutic area.

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Details for Patent 10,220,072

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Genentech, Inc. RITUXAN rituximab Injection 103705 November 26, 1997 10,220,072 2037-12-06
Genentech, Inc. HERCEPTIN trastuzumab For Injection 103792 September 25, 1998 10,220,072 2037-12-06
Genentech, Inc. HERCEPTIN trastuzumab For Injection 103792 February 10, 2017 10,220,072 2037-12-06
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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