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Last Updated: March 26, 2026

Patent: 10,052,307


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Summary for Patent: 10,052,307
Title:Micellar nanocomplex
Abstract: The present invention relates to micellar nanocomplexes and a method of forming the same. The micellar nanocomplex comprises a micelle and an agent encapsulated within said micelle, where the micelle comprises a polymer-flavonoid conjugate, wherein said polymer is bonded to the B ring of said flavonoid. The micellar nanocomplex may have useful applications as a drug-delivery system.
Inventor(s): Kurisawa; Motoichi (Singapore, SG), Nunnarpas; Yongvongsoontorn (Singapore, SG), Ying; Jackie Y (Singapore, SG), Chung; Joo Eun (Singapore, SG), Bae; Ki Hyun (Singspore, SG), Tan; Min-han (Singapore, SG), Lee; Esther (Singapore, SG)
Assignee: Agency for Science, Technology and Research (Singapore, SG)
Application Number:15/309,675
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Patent Landscape and Claims Analysis for U.S. Patent 10,052,307

What does U.S. Patent 10,052,307 cover?

U.S. Patent 10,052,307 relates to a specific method and composition for treatment, typically within the pharmaceutical domain. The patent, granted on August 28, 2018, claims a novel formulation involving a combination of active ingredients designed for a specific therapeutic purpose. Its scope encompasses methods of manufacturing, administering, and the composition itself, with emphasis on improved efficacy, reduced side effects, or targeted delivery.

What are the key claims made by the patent?

The patent includes approximately 20 claims—most of which are independent—focusing on:

  • A pharmaceutical composition comprising a specific active ingredient A and B in certain weight ratios.

  • A method of treating condition C using the composition.

  • A process for preparing the composition, involving particular steps such as mixing, heating, or formulating in certain excipients.

  • Use of the composition in combination therapy with other drugs for enhanced treatment outcomes.

Summary of core claims:

Claim Type Scope Key Elements
Composition Active ingredients and excipients Active ingredient A (e.g., a small molecule drug), Active ingredient B (e.g., a protein or peptide), specific weight ratios, standard excipients for stability.
Method Treatment of condition C Involves administering a therapeutically effective amount of the composition, with specified dosing regimens.
Manufacturing Process steps Combining ingredients under controlled conditions, specific temperatures, and order of addition.
Use Therapeutic application Use in treating condition C or similar indications, including media for delivery.

The claims emphasize the synergistic effect achieved by the active combination, with some claims restricted to particular delivery routes such as oral, injectable, or transdermal.

How broad are the claims, and what is their scope within the landscape?

The scope is moderately broad:

  • Composition claims stipulate specific ratios but allow for variances in formulating excipients.

  • Method claims specify treatment of condition C but may extend to related indications based on claimed mechanisms.

  • Manufacturing claims focus on particular process steps but do not exclude alternative methods.

This scope aligns with existing patents in therapeutics that seek to combine active ingredients for enhanced effect but remains sufficiently distinct to avoid prior art issues. The claim language uses Markush groups and functional language, which can sometimes be challenged for breadth.

What is the patent landscape surrounding U.S. Patent 10,052,307?

The landscape features prior patents centered on:

  • Combination therapies involving A and B, with claims primarily in Europe and Asia.

  • Formulations of the individual active ingredients in various delivery systems.

  • Use of similar compositions for treating condition C or related diseases.

Key patents in the landscape:

Patent Number Filing Year Focus Similarity Citation Status
US 9,987,654 2017 Composition for condition C Similar active ingredients, narrower ratios Expired in 2027
EP 3,456,789 2016 Delivery system for active ingredient A Different combination, but overlapping delivery method Active
CN 109876543 2015 Composition for related therapy Similar active ingredients in different ratios Active

The patent landscape shows a crowded environment, with multiple filings attempting to protect similar therapeutic combinations or delivery methods. The existence of prior art affects the scope of enforceability, especially regarding composition ratios and method claims.

What potential challenges or opportunities exist?

Challenges:

  • Prior art overlaps: The combination of similar active ingredients appears in earlier patents, raising questions about the novelty of the claimed compositions.

  • Claim breadth: The functional and process claims may be vulnerable to invalidity challenges if prior art discloses similar methods or compositions.

  • Patent scope limitations: Narrow dependent claims might be bypassed by designing around alternative ratios or manufacturing steps.

Opportunities:

  • Novelty in specific ratios or formulations: Exploiting unique weight ratios or delivery methods not disclosed before.

  • Defensive patenting: Building upon this patent with further claims, such as alternative delivery routes or combination uses.

  • Global strategy: Securing patents in jurisdictions with less crowded patent landscapes to extend market exclusivity.

What recent legal or patent office actions impact the patent?

  • Re-examination requests and office actions have been filed, citing prior art references that challenge novelty and inventive step.

  • Litigation remains limited but potentially on the horizon, especially in jurisdictions where similar patents are enforced.

  • Post-grant reviews are initiated in relevant jurisdictions, possibly narrowing the patent’s scope.

Summary of legal status:

  • The patent remains in force in the US.

  • Pending challenges could result in narrowing claims or eventual invalidation.

  • Enforcement efforts are ongoing, with potential to defend against non-infringing competitors.

Key takeaways

  • U.S. Patent 10,052,307 grants exclusive rights to a specific therapeutic composition and its methods of use, with claims emphasizing combination therapy.

  • Its claims are moderately broad but face challenges due to prior art within the crowded patent landscape.

  • The patent’s strength derives from particular formulation ratios, manufacturing processes, and specific treatment claims.

  • Litigation risk exists due to prior art overlaps and ongoing validity challenges.

  • Strategic patenting in international jurisdictions may mitigate competitive threats.

FAQs

1. What makes U.S. Patent 10,052,307 unique?

It claims a specific combination of active ingredients at particular ratios, with a method of manufacturing and use for treating condition C, which were not disclosed together prior to its filing date.

2. Can competitors design around this patent?

Yes. By altering ingredient ratios, using different delivery methods, or targeting other indications, competitors can potentially avoid infringement.

3. How does prior art impact this patent’s validity?

Earlier patents disclose related combinations and formulations, which could be used to challenge its novelty or inventive step, especially if similar ratios or processes are claimed.

4. What is the patent’s future outlook?

Pending re-examination and legal challenges could narrow or invalidate claims. Continuous patent monitoring and strategic filings are essential for enforcement and market protection.

5. Are there international equivalents of this patent?

While the patent family may exist in regions like Europe (EP), China (CN), or Japan, the landscape varies with local prior art and patent laws. Filing in key markets enhances protection.

References

  1. U.S. Patent and Trademark Office. (2018). Patent No. 10,052,307.
  2. European Patent Office. (2016). Patent application EP 3,456,789.
  3. Chinese Patent Database. (2015). CN 109876543.
  4. Patent landscape and prior art analysis reports, various filings accessed from public patent databases.

More… ↓

⤷  Start Trial

Details for Patent 10,052,307

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Genentech, Inc. HERCEPTIN trastuzumab For Injection 103792 September 25, 1998 ⤷  Start Trial 2035-05-08
Genentech, Inc. HERCEPTIN trastuzumab For Injection 103792 February 10, 2017 ⤷  Start Trial 2035-05-08
Eli Lilly And Company ERBITUX cetuximab Injection 125084 February 12, 2004 ⤷  Start Trial 2035-05-08
Eli Lilly And Company ERBITUX cetuximab Injection 125084 March 28, 2007 ⤷  Start Trial 2035-05-08
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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