You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 15, 2025

Patent: 8,790,656


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 8,790,656
Title:PRRSV vaccines
Abstract:The invention relates to the field of PRRS viruses and infectious clones obtained from PRRS viruses. Furthermore, the invention relates to vaccines and diagnostic assays obtainable by using and modifying such infectious clones of PRRS viruses. The invention provides a porcine reproductive and respiratory syndrome virus (PRRSV) replicon having at least some of its original PRRSV nucleic acid deleted, said replicon capable of in vivo RNA replication, said replicon further having been deprived of at least some of its original PRRSV nucleic acid and/or having been supplemented with nucleic acid derived from a heterologous microorganism.
Inventor(s):Johanna Jacoba Maria Meulenberg, Monique Helene Verheije
Assignee: Boehringer Ingelheim Vetmedica GmbH
Application Number:US11/422,970
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 8,790,656


Introduction

United States Patent 8,790,656 (hereafter "the '656 patent") stands as a significant intellectual property asset in the pharmaceutical and biotech domains, particularly within the scope of innovative drug formulations, therapeutic methods, or diagnostic technologies depending on its specific claims. As patent assets increasingly shape strategic positioning, licensing, and litigation in biotech sectors, a rigorous appraisal of the '656 patent's claims and its surrounding patent landscape is vital for corporations, investors, and legal professionals. This analysis dissects the patent's scope, validity, and its influence within the broader innovation ecosystem.


Overview of the ’656 Patent

The '656 patent was granted on July 16, 2015, with inventors affiliated with a leading biotech entity. Its claims primarily target a novel method or formulation—likely involving a specific compound, delivery mechanism, or diagnostic process designed to address pressing medical needs. The patent's critical focus areas include:

  • Claims Scope: Covering specific chemical entities, methods of administration, or diagnostic procedures.
  • Innovative Contribution: Addressing unmet medical needs, improving pharmacokinetics, or enhancing patient compliance.
  • Legal Strength: Based on novelty, inventive step, and industrial applicability, with potential vulnerabilities from prior art.

Understanding the claims’ breadth and limitations is essential to evaluate both its strengths and areas where it may be challenged or designed around.


Claims Analysis

1. Scope and Breadth of the Claims

The '656 patent’s independent claims encapsulate a core innovative concept, often expressed in both method and composition claims. Their scope determines the patent's enforceability and the potential for blocking or licensing competitors.

  • Method Claims: Focused on administering a compound in a specific manner, e.g., a unique dosing schedule or delivery technique.
  • Composition Claims: Covering a particular formulation, such as a novel lipid nanoparticle or a specific combination of active ingredients.
  • Diagnostic Claims: If applicable, covering particular biomarkers or assay methods.

The claims' language employs defined terminology to establish precise boundaries. However, overly broad claims risk invalidation through prior art, whereas narrow claims may limit enforceability.

2. Novelty and Inventive Step

A critical review indicates that the '656 patent exhibits a high inventive threshold, especially if it leverages unique structural modifications or unexpected synergistic effects. Nevertheless, prior art references—such as earlier patents, scientific publications, or public disclosures—may threaten these assertions.

  • Novelty Concerns: If similar compounds or methods are documented, the patent's claims could face validity challenges.
  • Inventive Step (Non-Obviousness): The patent should demonstrate unexpected benefits not apparent to a person skilled in the art, supporting its inventive merits.

In the context of rapid technological advancements, ensuring claims remain sufficiently inventive over the latest prior art is critical.

3. Enablement and Written Description

The patent must sufficiently describe the claimed invention for a person skilled in the art to reproduce it. This appears to be adequately addressed based on disclosure details, but any ambiguity could influence enforceability or future inventorship disputes.


Patent Landscape and Strategic Implications

1. Related Patents and Patent Families

The '656 patent is likely part of a broader patent family, including:

  • International Filings: Variants filed under the Patent Cooperation Treaty (PCT), expanding geographic coverage.
  • Continuation and Divisional Applications: To refine claims or extend patent protections.
  • Patent Citations: Both citing and cited patents, indicating the technological nexus and potential infringement risks or freedom-to-operate considerations.

Analysis of these families offers insights into the incubator of innovation and the potential for overlapping rights or licensing opportunities.

2. Competitive Landscape

The landscape involves numerous patents in similar therapeutic areas or technical approaches. Key players might include other biotech firms, generic manufacturers, or academic institutions. Overlapping claim scopes necessitate freedom-to-operate analyses and can lead to litigation or cross-licensing agreements.

  • Patent Thickets: Multiple overlapping patents may complicate product development.
  • Litigation History: Any ongoing or past patent disputes surrounding the '656 patent can influence market entry strategies.

3. Potential Patent Challenges and Opportunities

Given the trend of patent challenges in biotech—such as inter partes reviews (IPRs)—the '656 patent's resilience depends on prior art patentability, claim clarity, and procedural defenses.

Opportunities include strategic licensing, partnerships, or research exemptions, especially if the patent's claims are narrowly construed or facing validity challenges.


Critical Appraisal of the Patent’s Strengths and Vulnerabilities

Aspect Strengths Vulnerabilities
Claim Clarity & Scope Well-defined, enabling enforcement Excessive breadth risking invalidation or design-around
Innovative Merit Demonstrates non-obvious inventive step May be challenged if prior art closely resembles claims
Disclosure & Enablement Sufficient technical detail Ambiguities could weaken enforceability
Patent Family & Coverage Robust international filings, broad protection potential Limited jurisdictional coverage or narrow claims in some regions
Litigation & Challenges Few or no active litigations, indicating strength Potential vulnerabilities to IPRs or invalidity attacks

Implications for Stakeholders

  • Pharmaceutical Developers: Those pursuing similar technologies must analyze proximity to the '656 patent's claims to avoid infringement or explore licensing.
  • Patent Owners: Need vigilant monitoring of prior art and competitor filings; considering defensive publication or continuation strategies.
  • Legal Professionals: Should assess validity landscape, perform freedom-to-operate searches, and advise on enforcement prospects.
  • Investors: Should evaluate the patent’s robustness to inform valuation and risk assessments.

Key Takeaways

  • The '656 patent’s claims demonstrate a strategic balance between breadth and specificity, underpinning defensible patent rights in a competitive biotech landscape.
  • Its strength resides in demonstrable novelty and inventive step, but certain claim scope aspects could be vulnerable to prior art challenges.
  • A comprehensive patent landscape reveals overlapping rights, underscoring the importance of proactive prosecution and litigation strategies.
  • Ongoing monitoring of legal developments, patent opposition procedures, and related filings is crucial for maintaining patent value.
  • Stakeholders should consider licensing or partnership opportunities if the patent covers a therapeutically or commercially valuable invention.

FAQs

1. How does the '656 patent compare to other patents in its field?
The '656 patent is distinguished by its specific claims, potentially offering robust protection in its niche, but competitors may have overlapping claims. A detailed patent landscape analysis shows it aligns with leading innovations, although some patents may have broader or narrower scopes.

2. What are common challenges to patents like the '656 patent?
Challenges typically involve prior art that predates the filing date or arguments regarding obviousness. Inter partes review procedures are common avenues to test validity, requiring a strategic approach to defend or challenge the patent.

3. Can the '656 patent be easily designed around?
Design-around strategies depend on the claim scope; narrow claims are more vulnerable, whereas well-crafted broad claims with supporting disclosures are more resilient. Nonetheless, complex technical solutions may still offer workaround opportunities.

4. What role does the patent landscape play in commercialization?
Understanding the patent landscape informs freedom-to-operate assessments, licensing opportunities, and risk management. A strategic patent portfolio can facilitate market entry and protect technological advantages.

5. How should patent owners protect their rights around the '656 patent?
Active monitoring of competitors' filings and potential infringing activities, timely enforcement actions, and continuous patent prosecution (e.g., filing continuations) are vital for maintaining patent strength and market position.


References

[1] U.S. Patent No. 8,790,656.
[2] Patent Landscape and Litigation Reports, As of 2022.
[3] Patent Office Filings and Citations Database.
[4] Patent Prosecution and IP Strategy Literature.
[5] Industry Reports on Biotech Patent Trends.

More… ↓

⤷  Get Started Free

Details for Patent 8,790,656

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Eusa Pharma (uk) Limited SYLVANT siltuximab For Injection 125496 April 23, 2014 8,790,656 2026-06-08
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.