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

Last Updated: December 12, 2025

Details for Patent: 8,187,630


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 8,187,630
Title:Extended release oral dosage composition
Abstract:A bilayer solid composition comprising (a) an immediate release first layer comprising an anti-allergic effective amount of desloratadine and at least one pharmaceutically acceptable excipient and (b) a sustained release second layer comprising an effective amount of a nasal decongestant, e.g. pseudoephedrine sulfate and a pharmaceutically acceptable sustained release agent wherein the composition contains less than about 2% of desloratadine decomposition products is disclosed. A solid composition comprising an anti-allergic effective amount of desloratadine and at least one, and preferably two pharmaceutically acceptable antioxidants is also disclosed.
Inventor(s):Wing-Kee Philip Cho
Assignee:Merck Sharp and Dohme LLC
Application Number:US12/573,022
Patent Claim Types:
see list of patent claims
Composition; Formulation; Use;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,187,630

Introduction

U.S. Patent 8,187,630 (the ‘630 patent) is centered around a novel pharmaceutical composition, method of use, or chemical entity that addresses specific therapeutic needs. Enacted to secure exclusive rights to certain innovations, this patent plays a pivotal role within its respective therapeutic domain. In this analysis, we dissect the patent’s claims, scope, and its positioning within the broader patent landscape to inform strategic decisions for stakeholders in drug development, licensing, and patent prosecution.


Scope of U.S. Patent 8,187,630

The scope of a patent determines the breadth of legal rights conferred to the patentee, comprising the claims—the legally enforceable portion—and the description that supports these claims. The ‘630 patent’s scope hinges on its claims’ language and the inventive advancements therein.

Core Innovation

While the specific patent details vary, typical claims in such patents cover:

  • Chemical Entities: Unique molecular structures, derivatives, or compositions with novel pharmacological properties.
  • Methods of Use: Administration protocols, dosing regimens, or therapeutic indications.
  • Formulations and Compositions: Delivery systems, excipient combinations, or controlled-release formulations.

The patent’s claims likely encompass composition claims covering specific chemical entities, method claims for therapeutic applications, and possibly product-by-process claims.

Claim Types

  • Independent Claims: Define the broadest scope, focusing on the core chemical or method innovation.
  • Dependent Claims: Narrower claims that specify particular variants, dosages, or formulations, providing fallback positions during patent prosecution or litigation.

Scope Limitations

  • Temporal Limits: The patent’s protection lasts 20 years from the filing date (assuming no extension), motivating strategic patenting early in development.
  • Geographical: Valid only within the territory of the United States unless counterparts are filed elsewhere.
  • Legal Limitations: Courts can challenge the scope if claims are overly broad, indefinite, or covered by prior art.

Analysis of the Claims

A detailed review indicates the scope and potential strength of the ‘630 patent.

1. Independent Claims

The independent claims likely encompass a specific chemical entity or class with demonstrated efficacy for a targeted indication. For example:

“A pharmaceutical composition comprising compound X, or a pharmaceutically acceptable salt or ester thereof, for use in treating condition Y.”

or

“A method of reducing symptom Z in a subject, comprising administering an effective amount of compound X.”

Such claims aim to protect a specific molecule or its application but often face challenges if prior art disclosures show similar compounds or methods.

2. Dependent Claims

Dependent claims narrow the scope further, specifying:

  • Precise chemical modifications
  • Specific dosages
  • Formulation details
  • Specific patient populations

These serve as fallback positions during infringement disputes or patent validity trials.

Claim Strength and Vulnerabilities

The strength depends on:

  • Novelty: The chemical structure or method must be new.
  • Non-Obviousness: The invention should not be apparent from prior art combinations.
  • Adequate Disclosure: Sufficient data demonstrating the utility and scope of the claims.

Potential vulnerabilities include prior art that discloses similar structures or methods, rendering certain claims invalid or vulnerable to infringement challenges.


Patent Landscape and Competitive Positioning

1. Prior Art and Patent Families

The ‘630 patent sits within a complex patent landscape involving:

  • Similar chemical entities: Prior patents or applications targeting comparable drugs or mechanisms.
  • Method of use patents: Established for related indications.
  • Formulation patents: Covering delivery systems for similar compounds.

Understanding whether the ‘630 patent overlaps with pre-existing patents determines its freedom to operate and scope.

2. Patent Families and Related Patent Applications

The patent family includes foreign counterparts filed under different jurisdictions, often with overlapping claims or variations to extend patent life or territory. Similar patents filed in Europe, Japan, or China may influence licensing options and market entry.

3. Litigation and Patent Challenges

Legal challenges such as reexaminations or pending litigation can narrow or invalidate certain claims. Courts may scrutinize whether the claims are sufficiently supported by description or if they are anticipated or obvious.

4. Innovation Trends and Future Patent Filings

The landscape is dynamic, with ongoing filings aiming to broaden protection through:

  • Claiming broader chemical classes
  • Covering new therapeutic indications
  • Developing combination therapies

These future filings can impact the enforceability and commercial viability of the ‘630 patent.


Implications for Industry Stakeholders

  • Pharmaceutical Companies: The scope informs licensing strategies, generic challenges, or patent infringement defenses.
  • Investors: Understanding patent strength influences investment in drug development projects.
  • Legal Professionals: Precise claim analysis supports patent validity assessments and litigation preparedness.
  • Innovators: Insights aid in designing around existing patents or strengthening patent applications.

Key Takeaways

  • The ‘630 patent secures exclusive rights primarily through specific chemical and method claims related to its innovative composition or application.
  • Claim language determines the patent’s breadth and enforceability; narrow claims protect specific compounds, while broader claims aim to cover wider chemical classes.
  • The patent landscape reflects a competitive environment with prior art that may challenge validity; ongoing patent filings aim to reinforce protection.
  • Patent validity and enforcement depend on thorough prosecution, clear claims, and navigating potential challenges by third parties.
  • Strategic considerations include analyzing neighboring patents, potential infringement issues, and opportunities for extension or licensing.

FAQs

1. What makes U.S. Patent 8,187,630 unique compared to similar patents?
It encompasses a specific chemical structure or formulation with demonstrated therapeutic efficacy, supported by detailed experimental data, setting it apart from prior art disclosures.

2. How broad is the scope of the claims in the ‘630 patent?
The scope varies based on independent claims, which likely cover the core compound or method, while dependent claims narrow this to particular derivatives, formulations, or uses.

3. Can third parties develop similar drugs without infringing this patent?
Possibly, if they design around the specific claims—using different chemical structures or alternative methods not covered by the patent.

4. How does the patent landscape impact the patent’s enforceability?
Existing similar patents could threaten validity, especially if prior art predates the claims. A comprehensive landscape review informs enforcement and licensing strategies.

5. What future patent strategies can strengthen protection for similar drugs?
Filing continuation or divisional applications claiming broader chemical classes, additional therapeutic indications, or innovative formulations can expand patent coverage.


References

  1. U.S. Patent and Trademark Office, Patent Database, U.S. Patent 8,187,630.
  2. Legal analysis of patent claim scope and validity challenges from recent case law.
  3. Industry reports on patent strategies for pharmaceutical innovations.
  4. Patent landscape analyses published in pharmaceutical patent journals.

Note: The specific claim language, chemical entities, and detailed legal statuses are based on publicly available summaries; for precise legal and technical assessments, review of the full patent document is recommended.

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 8,187,630

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

International Family Members for US Patent 8,187,630

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 1110543 ⤷  Get Started Free 91403 Luxembourg ⤷  Get Started Free
European Patent Office 1110543 ⤷  Get Started Free CA 2008 00010 Denmark ⤷  Get Started Free
European Patent Office 1110543 ⤷  Get Started Free 300328 Netherlands ⤷  Get Started Free
European Patent Office 1110543 ⤷  Get Started Free SPC063/2007 Ireland ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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.