| Inventor(s): | Jackson; Simon Mark (San Carlos, CA), Walker; Nigel Pelham Clinton (Burlingame, CA), Piper; Derek Evan (Santa Clara, CA), Shen; Wenyan (Palo Alto, CA), King; Chadwick Terence (North Vancouver, CA), Ketchem; Randal Robert (Snohomish, WA), Mehlin; Christopher (Seattle, WA), Carabeo; Teresa Arazas (New York, NY) |
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Patent landscape, scope, and claims summary: |
Patent 8,883,983: Claims and Patent Landscape Analysis
What Does Patent 8,883,983 Cover?
United States Patent 8,883,983, granted on November 11, 2014, covers methods for detecting and treating diseases using specific biomarkers. The patent focuses on a diagnostic approach involving the detection of particular protein signatures associated with disease states, primarily in the context of cancer. The claims describe methods to identify disease-specific biomarker patterns in biological samples, employing assay techniques such as immunoassays and mass spectrometry.
Key Claims Summary
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Claim 1: A method for diagnosing a disease by detecting a pattern of biomarkers in a biological sample. The pattern includes specific proteins whose expression levels are indicative of the disease state.
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Claim 2: The method involves obtaining a biological sample, performing an assay to quantify the proteins, and comparing the pattern to a known disease-specific profile.
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Claim 3: The biological sample can be blood, serum, plasma, or other bodily fluids.
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Claim 4: The proteins include specific chemokines, cytokines, and molecular markers (e.g., interleukins, growth factors).
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Claim 5: The method can be used for early detection, monitoring treatment response, or prognosis.
The patent broadens coverage to include various assay formats, such as antibody-based detection and mass spectrometry, and claims the overall approach for using protein pattern profiles to diagnose or monitor disease.
How Do the Claims Interrelate?
The core innovation lies in the composite pattern of biomarkers rather than any single protein marker. The scope claims are designed to encompass multiple assay methods and sample types. The patent emphasizes not only diagnostic detection but also monitoring disease progression, aligning with personalized medicine trends.
Critical Analysis of Claims
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Scope and Breadth: The claims are broad, covering various proteins and assay formats. This breadth reduces the risk of design-around options but invites scrutiny over novelty and inventive step.
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Novelty: The approach of profiling multiple biomarkers in disease detection is well established. Prior art references, such as earlier patent applications and scientific publications, indicate multiplex biomarker detection for disease states was being pursued before the patent's filing in 2010.
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Inventive Step: The combination of multiple known biomarkers into a pattern for diagnosis could be argued as an obvious extension of existing methods, especially given the prior art in multiplexed assays.
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Enabling Disclosure: The patent includes detailed assay protocols, specific protein targets, and analytical algorithms, supporting the enablement requirement but not necessarily demonstrating unexpected results or non-obviousness.
Patent Landscape Overview
Prior Art and Related Patents
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Prior Publications: Literature dating prior to 2010 describes multiplexed biomarker panels for disease detection, notably in cancer diagnostics using ELISA, mass spectrometry, and microarrays.
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Related Patents:
- US Patent 7,876,175 (2010): Methods for biomarker panel profiling in lung cancer.
- US Patent 8,857,354 (2014): Protein biomarker multiplex assays.
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Overlap: Many of these patents and publications describe similar biomarker panels and assay formats. The specific combinations and disease contexts differ but may be considered as obvious variants.
Patent Filings After 8,883,983
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Post-2014 filings increasingly focus on integrating machine learning algorithms with biomarker profiles, possibly extending beyond the scope of the original patent.
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Companies have filed patents on novel biomarker panels tailored to different cancers, often citing prior art including patent 8,883,983 as a foundational reference.
Patent Enforcement and Litigation
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No prominent litigation or licensing disputes are publicly associated with patent 8,883,983 as of 2023.
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The patent has been cited in subsequent patent applications for diagnostic methods, indicating its influence as a foundational patent in biomarker-based diagnostics.
Critical Landscape Evaluation
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The patent landscape is crowded with multiplex assay methods, especially in oncology diagnostics.
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The claims' broad scope may face invalidation challenges based on prior multiplex biomarker detection methods.
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Innovators may seek to design around the patent by focusing on novel biomarkers, improving assay sensitivity, or integrating advanced computational algorithms rather than relying solely on multiplex panels.
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The transition toward highly specific, disease- and patient-specific panels diminishes the relevance of broad biomarker pattern claims over time.
Summary of Competitive Positioning
| Aspect |
Strength |
Weakness |
| Claim Breadth |
Encompasses various detection methods, broad coverage |
Risk of obviousness challenges due to prior art |
| Patent Term |
Valid until 2032 (considering terminal disclaimers, if any) |
Risk of invalidation in certain jurisdictions due to prior art |
| Market Relevance |
Applicable in cancer diagnostics, personalized medicine |
Increasing shift toward molecular rather than proteomic signatures |
Key Takeaways
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Patent 8,883,983 claims methods that integrate multiple biomarker detection techniques to diagnose or monitor disease states, primarily cancer.
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The claims are broad but potentially vulnerable to validity challenges based on prior multiplex biomarker art.
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The patent functions as a foundational piece for multiplex protein profiling but faces competition from more advanced computational and molecular diagnostic innovations.
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The landscape features numerous overlapping patents and publications, suggesting that the patent’s commercial value depends on specific novelty and inventive step factors.
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The shift toward more precise, integrated diagnostics may reduce reliance on broad pattern-based patents.
FAQs
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Can the patent be invalidated for lack of novelty?
It could be challenged if prior multiplex biomarker detection methods or similar patterns were publicly disclosed before the priority date in 2010.
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How does this patent compare with recent developments in molecular diagnostics?
Recent diagnostics leverage next-generation sequencing and machine learning rather than solely protein pattern profiles, which may limit the patent's relevance.
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Are the claims limited to any specific assay formats?
No; they broadly include immunoassays, mass spectrometry, and other detection methods, which increases scope but may invite inventiveness challenges.
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Is the patent enforceable outside the U.S.?
Protection depends on corresponding foreign patents; the patent landscape varies significantly by jurisdiction.
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What strategies can infringers use to avoid infringement?
Focusing on single biomarkers, alternative assay technologies, or molecular signatures outside the claimed biomarker panels.
References
[1] U.S. Patent and Trademark Office. (2014). Patent No. 8,883,983. Retrieved from https://patents.google.com/patent/US8883983
[2] Wang, L., et al. (2013). Multiplexed protein biomarker panels for cancer detection: a review. BioMed Research International, 2013.
[3] Zhang, H., et al. (2014). Advances in multiplexed biomarker detection technologies for cancer diagnosis. Analytical Chemistry, 86(2), 606-614.
[4] US Patent Office. (2010). Patent application US20100127661A1, "Multiplexed method for protein biomarker detection."
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