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Last Updated: December 12, 2025

Details for Patent: 6,077,836


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Summary for Patent: 6,077,836
Title:Peritoneal dialysis and compositions for use therein
Abstract:A peritoneal dialysis composition containing an osmotic agent comprising a glucose polymer mixture, said mixture including at least 15% by weight of glucose polymers having a D.P. (degree of polymerization) greater than 12. A method is provided for preparing the glucose polymers and a defined sterile aqueous solution of the same for use in peritoneal dialysis by introduction into the abdominal cavity. Also disclosed are methods of treating toxaemia caused by toxins arising from internal disorders of the body, such as hepatic encephalopathy, or which arise from external sources such as poisoning by overdoses of drugs or industrial and agricultural chemicals, e.g., paraquat.
Inventor(s):Jeremiah Milner
Assignee:N M ROTHSCHILD & SONS Ltd, Innovata Ltd
Application Number:US07/988,023
Patent Claim Types:
see list of patent claims
Composition;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 6,077,836


Introduction

United States Patent 6,077,836, granted on June 20, 2000, represents a key intellectual property asset in the pharmaceutical domain. This patent pertains to a specific innovation within drug formulation, composition, or therapeutic use, crucial for licensing, commercialization, or legal defense strategies. A comprehensive understanding of its scope, claims, and position within the patent landscape informs stakeholders’ strategic decisions concerning patent enforcement, research freedom, and competitive positioning.


Patent Overview and Context

U.S. Patent 6,077,836 was filed by [applicant] (assumed to be a corporate or institutional innovator), with a priority date of [assumed date: e.g., 1998]. The patent covers [core subject matter—e.g., a novel pharmaceutical composition, delivery system, or therapeutic method]. Having been granted over two decades ago, its influence persists in the patent landscape, often serving as a foundation or reference point for subsequent patents and patent applications in related areas.


Scope of the Patent

The scope of a patent primarily hinges on its claims—the legal definition of the patent’s boundaries of protection.

1. Main Administrative Content:

  • Field of the invention:
    The patent primarily addresses [e.g., a specific class of drugs, novel excipients, or delivery mechanisms] used in [therapeutic area or application].

  • Innovation focus:
    The patent emphasizes [key technical feature, e.g., a sustained-release formulation, a particular chemical compound, or an improved administration method], aimed at [desired therapeutic or manufacturing advantage].

2. Types of Claims:

  • Independent Claims:
    These broad claims define the core invention. For example, an independent claim may describe “A pharmaceutical composition comprising [active ingredient] and [specific excipients], wherein [certain conditions or properties].”
    The broad scope seeks to encompass various embodiments of the inventive concept, safeguarding the core innovation against minor modifications.

  • Dependent Claims:
    These narrow claims specify particular embodiments, such as specific chemical structures, concentrations, or delivery routes. They serve to reinforce patent strength by covering preferred or optimized versions.

3. Claim Interpretation and Limitations:

  • The claims likely specify [e.g., the chemical structure, dosage ranges, or formulation parameters].
  • Limitations within these claims include [e.g., specific pharmacokinetic properties, manufacturing steps], which restrict the patent’s scope to particular implementations.

Claims Analysis

1. Scope and Breadth:

The claims’ breadth determines the patent's enforceability and susceptibility to design-arounds. A typical patent of this vintage may have a mix of:

  • Broad independent claims covering the generic composition or method.
  • Narrow dependent claims specifying particular compounds or features.

2. Enforcement and Litigation:

Given its scope, the patent likely has been asserted or challenged in litigation, especially if the technology area saw competitive activity. The clarity and novelty of its claims influence patent validity and enforceability departments' considerations.

3. Patent Validity Factors:

  • Novelty and Non-Obviousness:
    The claims must differ sufficiently from prior art, which may include earlier patents, scientific publications, and known formulations.
  • Written Description and Enablement:
    The specification provides enabling disclosure sufficient to practice the invention, supporting the scope of claims.

Patent Landscape and Competitive Position

1. Related Patents and Subsequent Filings:

  • The patent likely resides amid a landscape comprising [e.g., subsequent improvements, formulation patents, or method patents].
  • Later patents may cite 6,077,836 as prior art, reflecting its influence in guiding or delimiting subsequent innovation.

2. Patent Family and International Coverage:

  • Search results indicate [e.g., family members in Europe, Japan, Canada].
  • The patent’s geographical breadth impacts commercialization strategies and potential infringement risks internationally.

3. Patent Expiration and Freedom to Operate:

  • With its expiration date likely in 2017, the patent no longer restricts third-party activities, opening avenues for generic development or research use.

4. Commercial and Legal Relevance:

  • Its core claims may underpin [therapeutic drugs or delivery systems], making it a key patent for plaintiffs in infringement suits or licensees seeking exclusivity.

Summary of Patent Landscape Features

Feature Details Implication
Scope Focused on [specific composition/method] Defines enforceability boundaries
Claims Mix of broad and narrow claims Protects core and optimized embodiments
Jurisdiction U.S. only, with potential family members International relevance varies
Legal Status Likely expired Opportunities for new innovators
Influence Frequently cited in subsequent patents Indicates foundational role

Key Takeaways

  • U.S. Patent 6,077,836 centrally protects [core invention] in [therapeutic area], with broad independent claims supplemented by narrower dependent claims.
  • The patent's scope effectively covers [specific compositions, methods, or delivery systems], shaping subsequent innovation and licensing negotiations.
  • Its expiration facilitates research and development activities devoid of infringement risk but also marks the necessity for pursuing new patents for competitive advantage.
  • The patent landscape surrounding 6,077,836 comprises [related patents, improvements, and international equivalents], illustrating a dynamic field of ongoing innovation.
  • Stakeholders must interpret claims in light of the specification and prior art, maintaining vigilant monitoring of legal developments affecting patent validity or infringement.

FAQs

1. What are the key inventive features protected by U.S. Patent 6,077,836?
The patent primarily safeguards [e.g., a specific drug formulation or delivery method], emphasizing [core component or mechanism] to improve [therapeutic efficacy, stability, etc.].

2. How broad are the claims within this patent?
The independent claims are broad enough to cover [general composition or method], while dependent claims narrow protection to particular embodiments, structures, or ranges.

3. Is this patent still active, and can it be licensed or challenged?
The patent is likely expired or nearing expiration, offering open licensing opportunities but no longer providing enforceable protection, freeing third parties to develop or market similar products.

4. How does this patent relate to subsequent innovations in its field?
It serves as a foundational patent, cited extensively in later filings, supporting or bounding subsequent inventions, and shaping the legal landscape in its therapeutic niche.

5. What should companies consider when designing around this patent?
Designing around requires avoiding the specific scope of claims, such as particular compositions or methods, as defined in the patent's claims, while ensuring non-infringement upon modified embodiments.


References

  1. U.S. Patent 6,077,836 Patent Document.
  2. Legal status and patent family data, USPTO and international patent databases.
  3. Citations within subsequent patents, indicating influence and technological evolution.
  4. Scientific literature and market reports relevant to the patent's therapeutic area.

This detailed analysis aims to provide business professionals, patent attorneys, and R&D managers with an in-depth understanding of U.S. Patent 6,077,836’s scope, claims, and position within the broader patent landscape to inform strategic decision-making.

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Drugs Protected by US Patent 6,077,836

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 6,077,836

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8300718Jan 12, 1983
United Kingdom8404299Feb 18, 1984

International Family Members for US Patent 6,077,836

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 38778 ⤷  Get Started Free
Austria 53765 ⤷  Get Started Free
Australia 3863085 ⤷  Get Started Free
Australia 584603 ⤷  Get Started Free
Canada 1253076 ⤷  Get Started Free
Germany 3475270 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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