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Intellectual Property Law Cheat Sheet

The core ideas of Intellectual Property Law distilled into a single, scannable reference — perfect for review or quick lookup.

PiqCue — piqcue.com/intellectual-property-law/cheatsheet

Quick Reference

Patent

A government-granted exclusive right to an inventor to make, use, and sell an invention for a limited period (typically 20 years from filing for utility patents). Patents require the invention to be novel, non-obvious, and useful.

Copyright

A form of protection granted to authors of original works of authorship, including literary, dramatic, musical, and artistic works. Copyright arises automatically upon fixation in a tangible medium of expression and generally lasts for the life of the author plus 70 years.

Trademark

A recognizable sign, design, word, or expression that identifies and distinguishes the goods or services of one party from those of others. Trademarks can be renewed indefinitely as long as they remain in use in commerce.

Trade Secret

Confidential business information that provides a competitive advantage. Unlike patents, trade secrets have no expiration date but lose protection if disclosed. Protection requires reasonable measures to maintain secrecy.

Fair Use

A legal doctrine that permits limited use of copyrighted material without permission for purposes such as criticism, commentary, news reporting, teaching, scholarship, or research. Courts consider four factors: the purpose of use, the nature of the work, the amount used, and the effect on the market.

Patent Infringement

The unauthorized making, using, selling, or importing of a patented invention during the term of the patent. Infringement can be direct (literal copying) or indirect (inducing or contributing to another's infringement).

Licensing Agreement

A legal contract in which an IP owner (licensor) grants another party (licensee) permission to use the intellectual property under specified conditions, often in exchange for royalty payments or fees.

Prior Art

Any evidence that an invention was already known or publicly available before the filing date of a patent application. Prior art is used to evaluate whether an invention is truly novel and non-obvious.

Trademark Dilution

The weakening of a famous trademark's distinctiveness through unauthorized use by others, even if there is no direct competition or consumer confusion. Dilution can occur through blurring (weakening distinctiveness) or tarnishment (harming reputation).

Public Domain

The body of creative works and knowledge that are not protected by intellectual property laws, either because protections have expired, been forfeited, or were never applicable. Public domain works can be freely used by anyone.

Key Terms at a Glance

Patent:A government-granted exclusive right to make, use, and sell an invention for a limited time, in exchange for public disclosure of the invention.
Copyright:Legal protection for original works of authorship fixed in a tangible medium, granting exclusive rights to reproduce, distribute, perform, and create derivative works.
Trademark:A distinctive sign, symbol, word, or phrase that identifies and distinguishes the source of goods or services from those of others.
Trade Secret:Confidential business information that derives economic value from not being generally known and is subject to reasonable efforts to maintain its secrecy.
Fair Use:A legal doctrine permitting limited use of copyrighted material without authorization for purposes such as criticism, commentary, teaching, or research.
Prior Art:All publicly available information relevant to a patent's claims of novelty, including earlier patents, publications, and public use.
Infringement:The unauthorized use, reproduction, or exploitation of intellectual property rights, violating the exclusive rights of the IP holder.
Licensing:A contractual arrangement granting permission to use intellectual property under specified terms and conditions, often in exchange for royalties.
Public Domain:The body of works and knowledge not protected by IP rights, freely available for anyone to use without permission or payment.
Trade Dress:The overall visual appearance or image of a product or its packaging that indicates the source of the product to consumers.
Royalty:A payment made to an IP owner in exchange for the right to use their intellectual property, typically calculated as a percentage of revenue or a fixed fee per unit.
Non-Disclosure Agreement (NDA):A legally binding contract establishing a confidential relationship between parties, prohibiting the sharing of specified proprietary information.
DMCA (Digital Millennium Copyright Act):A U.S. federal law enacted in 1998 that addresses copyright issues in the digital environment, including anti-circumvention provisions and ISP safe harbors.
TRIPS Agreement:An international treaty administered by the WTO that sets minimum standards for IP regulation among member nations.
WIPO (World Intellectual Property Organization):A specialized agency of the United Nations dedicated to promoting the protection of intellectual property worldwide through cooperation among states and international treaties.

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Intellectual Property Law Cheat Sheet - Quick Reference Guide | PiqCue