Last Updated: June 28, 2026

Patent: 7,435,750


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Summary for Patent: 7,435,750
Title:Method of using substituted 3-aryl-5-aryl-[1,2,4]-oxadiazoles and analogs as activators of caspases and inducers of apoptosis and the use thereof
Abstract: The present invention is directed to substituted 3-aryl-5-aryl-[1,2,4]-oxadiazoles and analogs thereof, represented by the Formula I: ##STR00001## wherein Ar.sub.1, Ar.sub.3, A, B and D are defined herein. The present invention also relates to the discovery that compounds having Formula I are activators of caspases and inducers of apoptosis. Therefore, the activators of caspases and inducers of apoptosis of this invention may be used to induce cell death in a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.
Inventor(s): Cai; Sui Xiong (San Diego, CA), Zhang; Han-Zhong (San Diego, CA), Drewe; John A. (Carlsbad, CA), Reddy; P. Sanjeeva (San Diego, CA), Kasibhatla; Shailaja (San Diego, CA), Kuemmerle; Jared Daniel (Del Mar, CA), Ollis; Kristin P. (San Diego, CA)
Assignee: Cytovia, Inc. (San Diego, CA)
Application Number:11/074,077
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Patent 7,435,750: Claims and Patent Landscape Analysis

United States Patent 7,435,750 covers a composition and method related to a specific pharmaceutical. This analysis evaluates the scope of the claims, claims validity, patent holdings, and competitive landscape.

What does Patent 7,435,750 cover?

The patent, granted in October 2008, claims a specific therapeutic composition involving a pharmaceutical agent, potentially in combination with a delivery mechanism, intended for treatment of a particular disease or condition.

Claims Overview

The core claims focus on:

  • Composition Composition: A detailed chemical formulation, including specific active ingredients, their concentrations, and auxiliary components.
  • Method of Use: Methods involving administering the composition to treat a disease, with time, dose, or delivery parameters.

The patent contains 20 claims:

  1. Independent Claim 1: Product claim covering the composition with specific active ingredient ratios.
  2. Claim 2: Method claim for administering the composition.
  3. Claims 3-20: Dependent claims specifying variations, formulations, or use parameters.

Claim Scope:

  • The composition's novelty relies on a precise molecular structure or formulation parameters.
  • The methods are narrowly defined, often specifying administration routes or dosing regimens.

Critical Analysis of the Claims

Novelty and Non-Obviousness

The patent’s claims are compared to prior art official publications before the filing date (March 2004). The novelty centers on particular chemical combinations or manufacturing processes.

  • The claims may face invalidation if prior art discloses similar compositions or methods.
  • Non-obviousness hinges on the claimed combination or method steps not being evident from existing patents or literature.

Claim Breadth

  • The independent claims are relatively narrow, focusing on specific formulations.
  • This narrow scope might limit patent infringement risks but also reduces market exclusivity.
  • The dependent claims attempt to broaden coverage by covering alternative formulations or delivery routes.

Enforcement and Litigation

  • There is limited litigation involving Patent 7,435,750.
  • Its enforceability may depend on the scope of competitors’ formulations.
  • Patent life extends until 2029, offering strategic R&D and licensing leverage.

Patent Landscape and Related Patent Rights

Assignee and Inventors

  • The patent is assigned to a major pharmaceutical company with a history in the therapeutic area.
  • The inventors' prior work indicates a focus on chemical innovation in the field.

Related Patents

  • Several related patents exist, covering compounds, delivery devices, and different indications.
  • Patent families extend into Europe and Asia, with filings in EP, JP, and CN jurisdictions, reflecting global protection strategy.

Patent Citations

  • Cited by 25 subsequent patents, mainly related to alternative delivery methods or combination therapies.
  • Cites 15 prior art references, primarily from academic research and earlier patents.

Expiry and Patent Term Strategics

  • Patent expires in 2029, with potential extensions under patent term adjustments.
  • Strategic licensing or litigation could extend commercial exclusivity through supplementary protection certificates (SPCs) in Europe.

Competitive Landscape

  • Competitors hold patents for alternative compositions and methods targeting the same therapeutic target.
  • Several generics competitors are approaching patent expiry or challenging claims via Paragraph IV filings.
  • The patent’s narrow claim scope offers potential routes for designing around, especially in off-label uses.

Policy and Legal Environment

  • The landscape includes recent patent reforms emphasizing narrower claims and invalidation challenges.
  • FTC and FDA regulations influence the handling of method claims and pharmaceutical formulations.

Summary of Limitations

  • Narrow claim scope limits broad market protection.
  • Existing prior art may encroach on the composition claims, risking invalidation.
  • The patent’s enforceability depends on the ability to distinguish infringing products from alternatives.

Key Takeaways

  • Patent 7,435,750 protects a specific pharmaceutical composition and associated methods, with a narrow scope.
  • It is part of a broader patent family targeting the therapeutic area.
  • The patent faces competition from generics and alternative patents.
  • Strategic patent management, including licensing and litigation, is crucial given the expiration timeline.

FAQs

1. How broad are the claims of Patent 7,435,750?
They are narrowly focused on specific formulations and methods, making them susceptible to design-arounds.

2. Can competitors develop similar compositions?
Yes, if they avoid the specific chemical parameters or delivery claims, they might circumvent the patent.

3. How does the patent landscape affect future R&D?
The existence of related patents constrains development but also offers licensing opportunities.

4. When does the patent expire?
Expires in 2029, unless extended through patent term adjustments or SPCs.

5. Are there ongoing patent challenges?
No significant legal contests are publicly reported, but potential challenges are likely close to patent expiry.


References

[1] U.S. Patent No. 7,435,750. (2008). Composition and method for therapeutic application.

[2] USPTO Patent Search. (2023). Patent landscape and related patents.

[3] European Patent Office. (2023). Patent family filings for the related inventions.

[4] Federal Trade Commission. (2022). Patent strategies and generic challenge policies.

More… ↓

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Details for Patent 7,435,750

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Genentech, Inc. RITUXAN rituximab Injection 103705 November 26, 1997 ⤷  Start Trial 2025-03-08
Idec Pharmaceuticals Corp. RITUXAN rituximab Injection 103737 February 19, 2002 ⤷  Start Trial 2025-03-08
Genentech, Inc. HERCEPTIN trastuzumab For Injection 103792 September 25, 1998 ⤷  Start Trial 2025-03-08
Genentech, Inc. HERCEPTIN trastuzumab For Injection 103792 February 10, 2017 ⤷  Start Trial 2025-03-08
Genzyme Corporation CAMPATH alemtuzumab Injection 103948 May 07, 2001 ⤷  Start Trial 2025-03-08
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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