Substantial Similarity: What It Means in Copyright Law

Definition & Meaning

Substantial similarity is a legal concept in copyright law that describes a significant resemblance between a copyrighted work and another work that is claimed to infringe on it. This resemblance can lead to the assumption that the alleged infringer copied elements of the original work without permission. The key question is whether an average person would recognize that the second work has taken substantial parts of the first work's expression.

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Real-world examples

Here are a couple of examples of abatement:

Example 1: A musician creates a song that closely resembles the melody and lyrics of a well-known copyrighted song. If an average listener can easily recognize the similarities, substantial similarity may be established.

Example 2: An artist produces a painting that replicates the unique style and elements of another artist's work without permission. This could lead to claims of copyright infringement based on substantial similarity.

Comparison with related terms

Term Definition Difference
Direct Copying Reproducing a work exactly as it is. Substantial similarity considers overall resemblance, not just direct copying.
Fair Use Limited use of copyrighted material without permission. Substantial similarity focuses on the degree of resemblance, while fair use assesses the purpose and character of the use.

What to do if this term applies to you

If you believe your work has been copied or if you are accused of copying, consider the following steps:

  • Gather evidence of your original work and the alleged infringement.
  • Consult a legal professional for advice tailored to your situation.
  • Explore US Legal Forms for templates that can assist in documenting your claim or defense.

Quick facts

Attribute Details
Legal Area Copyright Law
Key Test Ordinary observer standard
Potential Outcomes Injunctions, damages, or settlements

Key takeaways