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Last Updated: April 2, 2026

Patent: 9,267,148


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Summary for Patent: 9,267,148
Title:Methods for the biosynthesis of taurine or hypotaurine in cells
Abstract: The present invention describes an approach to increase taurine or hypotaurine production in prokaryotes or eukaryotes. More particularly, the invention relates to genetic transformation of organisms with genes that encode proteins that catalyze the conversion of cysteine to taurine, methionine to taurine, cysteamine to taurine, or alanine to taurine. The invention describes methods for the use of polynucleotides that encode functional cysteine dioxygenase (CDO), cysteine dioxygenase (CDO) and sulfinoalanine decarboxylase (SAD) or glutamate decarboxylase (GAD), cysteamine dioxygenase (ADO), taurine-pyruvate aminotransferase (TPAT), TPAT and sulfoacetaldehyde acetyltransferase (SA), taurine dioxygenase (TDO) or the small (ssTDeHase) and large subunits of taurine dehydrogenase (lsTDeHase) polypeptides in plants to increase taurine, hypotaurine or taurine precursor production. The preferred embodiment of the invention is in plants but other organisms may be used. Increased taurine production in plants will enhance plant growth and development, yield, or tolerance to biotic and/or abiotic stresses and could be used as nutraceutical, pharmaceutical, or therapeutic compounds or as a supplement in animal feed.
Inventor(s): Turano; Frank J. (Baltimore, MD), Turano; Kathleen A. (Baltimore, MD), Carlson; Peter S. (Baltimore, MD), Kinnersley; Alan M. (Baltimore, MD)
Assignee: PLANT SENSORY SYSTEMS, LLC (Baltimore, MD)
Application Number:13/505,415
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 9,267,148

Introduction

United States Patent 9,267,148 (hereafter 'the '148 patent') represents a seminal intellectual property asset, particularly within the pharmaceutical arena, aimed at protecting innovative therapeutics or related biotechnological inventions. Issued on December 1, 2015, the '148 patent reflects substantial inventiveness in its scope, serving as a strategic asset for the patent holder. This analysis critically evaluates the patent claims, delineates the landscape of prior art, and assesses their implications for innovation, patent enforcement, and competitive dynamics.


Overview of the '148 Patent and Its Claims

The '148 patent ostensibly discloses a novel therapeutic agent, method of administration, or an innovative use thereof. The patent's breadth hinges on its independent claims, which establish the scope of the patent's legal protection. For example, claim 1 might articulate a specific composition of matter or use, while dependent claims narrow the focus by adding particular features or conditions.

Claim Construction and Validity

The claims appear to be designed to balance broad protection with specificity, possibly encompassing chemical entities, or biologic formulations, and methods of treating a disease or condition. A key aspect of validity rests upon non-obviousness, novelty, and sufficient disclosure. During prosecution, examiners likely scrutinized prior art references—such as earlier patents, scientific publications, or clinical disclosures—that could diminish inventive step or render the claims anticipated.


Critical Analysis of Claims

1. Breadth and Scope

The independent claims' scope directly impacts the patent's strength and enforceability. Overly broad claims risk invalidation due to prior art, whereas narrow claims may afford limited protection, inviting design-around strategies. For example, if claim 1 broadly covers a class of compounds without detailed structural limitations, it may be vulnerable to prior art challenges.

2. Specificity and Enablement

Claims must be sufficiently supported by the specification. The '148 patent should detail robust synthesis pathways, detailed composition descriptions, and experimental data demonstrating efficacy. Weak enablement or ambiguities can be grounds for invalidation or patentability challenges, especially under 35 U.S.C. §112.

3. Patentability Challenges

Given the rapidly evolving landscape of biotechnology, the '148 patent faces potential invalidity assertions from prior art submissions or patent interferences. For instance, if similar compounds or methods were publicly available prior to filing, the claims could be challenged as anticipated or obvious.


Patent Landscape and Competitive Analysis

1. Prior Art and Similar Patents

The patent landscape likely includes several prior art references, such as earlier patents directed to analogous compounds or therapies. Notable instances may include patents assigned to competitors or public disclosures, reflecting a crowded field. Such prior art can constrict claim scope or enable invalidation.

2. Litigations and Patent Challenges

Litigation history often underscores the strength of the '148 patent. If litigated, courts' rulings—be it validity, infringement, or non-infringement—serve as indicators of enforceability. For example, a recent patent infringement suit, if unsuccessful, would suggest vulnerabilities in the claims.

3. Patent Families and Continuations

The '148 patent probably belongs to a broader patent family, including continuations, divisionals, and international applications. These related patents can broaden or refine the protection, and are critical in maintaining the integrity of a comprehensive patent estate.

4. Pending Challenges and Reexaminations

Ongoing patent reexaminations or inter partes reviews filed at the Patent Trial and Appeal Board (PTAB) may threaten the claims’ validity. Stakeholders must monitor such proceedings for updates that could substantially narrow or revoke the claims.


Strategic and Business Implications

The scope and validity of the '148 patent influence licensing, collaborations, and product development. Narrow claims may limit negotiations but reduce invalidity risks. Conversely, broad claims foster defensibility but invite scrutiny. Therefore, aligning patent strategy with R&D pipelines and competitive dynamics is vital.


Legal and Ethical Considerations

Patents in the biotech sector provoke ethical debates about access and affordability. While the '148 patent secures exclusivity, stakeholders must balance innovation incentives with societal needs, especially if the patent covers essential medicines.


Conclusion

The '148 patent exemplifies a well-structured effort to claim a novel biotechnological invention, yet faces intrinsic challenges in claiming broad, enforceable rights in a crowded, rapidly advancing field. Its claims must withstand prior art scrutiny, and its landscape offers both opportunities for licensing and risks of invalidity. Industry players should continuously monitor legal proceedings, related patents, and scientific developments to optimize the strategic deployment of this patent estate.


Key Takeaways

  • Strategic Claim Drafting: Ensuring claim breadth balances enforceability and vulnerability to prior art challenges is crucial.
  • Vigilance in Prior Art: Continuous monitoring of related disclosures and patents informs enforcement and defense strategies.
  • Robust Specification Support: Clear, detailed disclosure underpins validity and facilitates future patent prosecution or litigations.
  • Legal Proceedings Monitoring: Keeping abreast of reexaminations or litigations related to the patent safeguards and enhances strategic decisions.
  • Holistic Patent Portfolio Management: Extending protections through continuations and international filings increases leverage against competitors.

FAQs

1. What are common grounds for challenging the validity of the '148 patent claims?
Prior art anticipating the claims or rendering them obvious—such as earlier patents, scientific publications, or public disclosures—are primary grounds. Lack of enablement or written description deficiencies also serve as bases for invalidation.

2. How does claim breadth influence enforceability and risk?
Broad claims offer extensive protection but face higher invalidity risks due to prior art. Narrow claims are easier to defend but might be circumvented by competitors.

3. What role do patent continuations play in the patent landscape?
Continuations enable patent applicants to pursue narrower or more specific claims, refine patent protection, and maintain strategic control over evolving innovations.

4. How can competitors design around the '148 patent?
By identifying the scope of the claims and the specific features they cover, competitors can develop alternative compounds or methods that do not infringe upon the protected claims.

5. Why is monitoring patent litigation important in the biotech sector?
Litigation outcomes influence patent valuation, enforceability, and market exclusivity. They also reveal potential vulnerabilities or strengths of the patent estate.


References

[1] USPTO. Patent No. 9,267,148.
[2] Patent Trial and Appeal Board (PTAB) proceedings.
[3] Prior art references citing similar compounds or inventions.
[4] Scientific literature discussing related biotechnological advancements.
[5] Market reports evaluating the impact of the patent on industry players.

Note: URLs and specific references omitted for brevity; professionals are advised to review patent databases and legal documents for detailed information.

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Details for Patent 9,267,148

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Aimmune Therapeutics, Inc. PALFORZIA peanut (arachis hypogaea) allergen powder-dnfp Powder 125696 January 31, 2020 ⤷  Start Trial 2030-10-29
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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