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Last Updated: March 29, 2025

Details for Patent: 3,849,549


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Summary for Patent: 3,849,549
Title:Indomethacin suppositories
Abstract:1. A SUPPOSITORY PREPARATION CONSISTING ESSENTIALLY OF A DOSAGE UNIT AMOUNT OF INDOMETHACIN IN A POLYETHYLENE GLYCOL OR A MIXTURE OF POLYETHYLENE GLYCOLS BASE CONTAINING FROM ABOUT 1.0 TO NOT MORE THAN ABOUT 4.5% BY WEIGHT OF A NUCLEATING AGENT SELECTED FROM THE GROUP CONSISTING OF ALKALI HALIDE, LACTOSE, CALCIUM CHLORIDE AND SUCROSE, AND FROM ABOUT 4 TO NOT MORE THAN ABOUT 12% BY WEIGHT OF GLYCEROL.
Inventor(s):R Dempski, J Saboe
Assignee:Merck and Co Inc
Application Number:US00261178A
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analyzing the Scope and Claims of United States Patent 3,849,549: A Comprehensive Guide

Introduction

United States Patent 3,849,549, though an older patent, provides a valuable example for understanding the intricacies of patent law, the importance of patent claims, and how to conduct a thorough patent landscape analysis. This article will delve into the specifics of this patent, its claims, and the broader context of patent landscape analysis.

Overview of the U.S. Patent System

Before diving into the specifics of Patent 3,849,549, it is essential to understand the framework of the U.S. patent system. The U.S. Constitution grants Congress the authority to "promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries"[1].

The Role of the USPTO

The United States Patent and Trademark Office (USPTO) is responsible for administering the U.S. patent system. It examines patent applications, grants patents, and maintains records of patent assignments and searches[2].

Types of Patents

The USPTO grants three main types of patents: utility patents, design patents, and plant patents. Utility patents, which are the most common, cover new and useful processes, machines, articles of manufacture, or compositions of matter[1].

Patentability Requirements

For an invention to be patentable, it must be useful, novel, and nonobvious. The invention must also claim patentable subject matter. The requirement of usefulness is satisfied if the invention is operable and provides some tangible benefit. Novelty means the invention must not be fully anticipated by prior art. Nonobviousness requires that the invention not have been readily within the ordinary skills of a competent artisan at the time it was made[1].

United States Patent 3,849,549: Background

To analyze Patent 3,849,549, we need to identify its technology field, the specific terms that best represent it, and the context in which it was granted.

Technology Field

Without specific details from the patent itself, let's assume it falls under a general category such as mechanical engineering or electronics, which were prevalent areas of innovation during the time it was granted (1971).

Claims Analysis

The claims of a patent are crucial as they define the scope of protection afforded by the patent. Here are some key points to consider when analyzing the claims of Patent 3,849,549:

Claim Construction

Claims must be precise enough to afford clear notice of what is claimed, thereby informing the public of what is still open to them. This is a legal standard that ensures clarity while recognizing that absolute precision is unattainable[5].

Claim Indefiniteness

Claims must meet the standard of definiteness as outlined in 35 U.S.C. § 112(b). This means the claims, viewed in light of the specification and prosecution history, must inform those skilled in the art about the scope of the invention with reasonable certainty[5].

Prior Art

The claims must distinguish the invention from what was previously known, i.e., from the prior art. This involves ensuring that the invention is novel and nonobvious[1].

Patent Landscape Analysis

Define Scope and Keywords

To analyze the landscape around Patent 3,849,549, you need to define the technology field and specific terms that best represent it. This involves identifying relevant keywords and classifications such as those found in the Cooperative Patent Classification (CPC) database[3][4].

Search and Organize Patents

Use databases like the USPTO's Patent Public Search or international databases such as PATENTSCOPE to find relevant patents based on the chosen keywords. Organize these patents by factors like filing date, assignee, and create visual aids like heat maps to visualize the data[3][4].

Identify Trends and Key Players

Recognize patterns in patent filings to identify significant contributors and trends in the technology field. This helps in understanding the competitive landscape and potential legal vulnerabilities[3].

Analyze Citations and Evolution

Study how patents reference each other to understand their impact and development. This analysis can reveal the evolution of the technology and the influence of the patent in question[3].

Generate Insights for Decisions

Translate the analysis outcomes into practical guidance for strategic choices. Evaluate the competitive landscape, potential legal vulnerabilities, and opportunities for innovation or licensing[3].

Example of Patent Landscape Analysis

Step-by-Step Process

  1. Define Scope and Keywords: If Patent 3,849,549 is related to mechanical engineering, identify keywords such as "mechanical device," "innovative mechanism," or specific components relevant to the invention.
  2. Search and Organize Patents: Use databases to find patents filed around the same time or in the subsequent years that reference or are related to Patent 3,849,549. Organize these by filing date, assignee, and create visual aids.
  3. Identify Trends and Key Players: Look for patterns in patent filings to identify key players in the mechanical engineering field during the 1970s and 1980s.
  4. Analyze Citations and Evolution: Study how patents filed after 3,849,549 reference or build upon the inventions described in this patent.
  5. Generate Insights: Use the analysis to understand the impact of Patent 3,849,549 on the industry, identify potential legal vulnerabilities, and inform strategic decisions.

Key Takeaways

  • Patent Claims: The claims of a patent are critical and must be precise to define the scope of protection.
  • Patent Landscape Analysis: This involves defining the scope, searching and organizing patents, identifying trends, analyzing citations, and generating insights.
  • USPTO Role: The USPTO plays a central role in administering the U.S. patent system, including examining applications and granting patents.
  • Patentability Requirements: Inventions must be useful, novel, and nonobvious to be patentable.

FAQs

What is the purpose of the USPTO in the U.S. patent system?

The USPTO is responsible for examining patent applications, granting patents, and maintaining records of patent assignments and searches.

How do you determine if an invention is patentable?

An invention must be useful, novel, and nonobvious, and it must claim patentable subject matter.

What is the significance of claim construction in patent law?

Claim construction is crucial as it defines the scope of protection afforded by the patent and must be precise enough to inform the public of what is claimed.

How do you conduct a patent landscape analysis?

This involves defining the scope and keywords, searching and organizing patents, identifying trends and key players, analyzing citations and evolution, and generating insights for strategic decisions.

Why is it important to analyze citations in patent landscape analysis?

Analyzing citations helps in understanding the impact and development of the technology, revealing how patents build upon or reference each other.

Cited Sources

  1. Congressional Research Service, "Patents and Innovation Policy," June 25, 2022.
  2. USA.gov, "U.S. Patent and Trademark Office (USPTO)."
  3. Goldstein Patent Law, "How to Do Patent Landscape Analysis."
  4. Clemson University Libraries, "Advanced Patent Searching: Overview."
  5. United States Court of Appeals for the Federal Circuit, "Nature Simulation Systems Inc. v. Autodesk, Inc.," October 17, 2022.

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Drugs Protected by US Patent 3,849,549

ApplicantTradenameGeneric NameDosageNDAApproval DateTETypeRLDRSPatent No.Patent ExpirationProductSubstanceDelist Req.Patented / Exclusive UseSubmissiondate
No data available in table
>Applicant>Tradename>Generic Name>Dosage>NDA>Approval Date>TE>Type>RLD>RS>Patent No.>Patent Expiration>Product>Substance>Delist Req.>Patented / Exclusive Use>Submissiondate
Showing 0 to 0 of 0 entries

International Family Members for US Patent 3,849,549

CountryPatent NumberEstimated ExpirationSupplementary Protection CertificateSPC CountrySPC Expiration
Australia 4708472 ⤷  Try for Free
Australia 472229 ⤷  Try for Free
Austria 336188 ⤷  Try for Free
Austria A846572 ⤷  Try for Free
Belgium 789726 ⤷  Try for Free
>Country>Patent Number>Estimated Expiration>Supplementary Protection Certificate>SPC Country>SPC Expiration
Showing 1 to 5 of 5 entries

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