The four main examples of intellectual property are copyrights, patents, trademarks, and trade secrets. A novel is protected by copyright. A new engine design is protected by a patent. The Nike swoosh is a trademark. The Coca-Cola formula is a trade secret. Each category covers a different kind of creation, arises in a different way, and lasts for a different length of time.
Copyright
Copyright protects original works of authorship once they’ve been recorded in some tangible form, whether on paper, on film, or in a digital file. Federal law recognizes eight broad categories, and the examples inside each are what most people actually encounter:
- Literary works: books, poems, articles, blog posts, and computer software code
- Musical works: compositions and their lyrics
- Dramatic works: plays and screenplays, including any accompanying music
- Pantomimes and choreographic works: dance routines and mime performances
- Pictorial, graphic, and sculptural works: paintings, photographs, sculptures, and illustrations
- Motion pictures and audiovisual works: films, TV shows, and video content
- Sound recordings: recorded performances of music, spoken word, or other sounds
- Architectural works: building designs
The line to remember is that copyright protects the specific expression of an idea, not the idea itself. You can’t copyright the concept of a love story set during wartime, but you can copyright the particular novel you wrote about it. The same applies to software: the code a programmer writes is copyrightable, but the underlying process or method the program performs is not.1Office of the Law Revision Counsel. 17 USC 102 – Subject Matter of Copyright: In General
Protection kicks in automatically the moment you fix the work in a tangible form. No registration, no copyright symbol required. That said, registration matters if you ever need to sue. Federal law requires registration (or at least a pending application) before you can file a copyright infringement lawsuit for a U.S. work.2Office of the Law Revision Counsel. 17 USC 411 – Registration and Civil Infringement Actions The electronic filing fee is $45 for a single work by a single author, and $65 for the standard application.3U.S. Copyright Office. Fees
For works created after January 1, 1978, copyright lasts the life of the author plus 70 years. For a work for hire or an anonymous or pseudonymous work, the term is 95 years from first publication or 120 years from creation, whichever is shorter.4Office of the Law Revision Counsel. 17 USC 302 – Duration of Copyright: Works Created on or After January 1, 1978
Patents
A patent gives an inventor the exclusive right to make, use, and sell an invention for a limited time. Anyone who invents a new and useful process, machine, manufactured article, or composition of matter can apply through the U.S. Patent and Trademark Office.5Office of the Law Revision Counsel. 35 USC 101 – Inventions Patentable Unlike copyright, patent protection requires a formal application, examination, and approval. The USPTO’s basic utility filing fee is $350 for a large entity, $140 for a small entity, and $70 for a micro entity, though total costs run higher once search, examination, and issue fees are added in.6United States Patent and Trademark Office. USPTO Fee Schedulep>
Patents come in three flavors:
- Utility patents are the most common. They cover new processes, machines, manufactured goods, or chemical compositions. A new engine design, a pharmaceutical compound, or a manufacturing method would all qualify. Term: 20 years from the filing date.
- Design patents cover the ornamental appearance of a functional item, such as the distinctive shape of a smartphone or a piece of furniture. Term: 15 years from the date the patent is granted.7Office of the Law Revision Counsel. 35 USC 173 – Term of Design Patent
- Plant patents cover new varieties of asexually reproduced plants, like a newly developed rose cultivar or a hybrid fruit tree. Term: 20 years from the filing date.8United States Patent and Trademark Office. MPEP 2701 – Patent Term
The utility-versus-design distinction confuses a lot of people. If you invent a new type of wrench that grips better, that’s a utility patent. If your wrench works like every other wrench but has a distinctive sculptural handle, the handle’s appearance could qualify for a design patent. Many products carry both.
Trademarks
A trademark is any word, name, symbol, or device that identifies where a product comes from and distinguishes it from competitors. A service mark works the same way for services rather than physical goods.9Office of the Law Revision Counsel. 15 USC 1127 – Construction and Definitions In everyday use, “trademark” covers both.
Familiar examples include brand names like “Coca-Cola,” logos like the Nike swoosh, and slogans like “Just Do It.” Protection also reaches product packaging, distinctive bottle shapes, colors, and even sounds.10United States Patent and Trademark Office. Trademark Examples
Not every word qualifies. Courts and the USPTO grade marks on a distinctiveness spectrum, and where a mark falls determines how much protection it gets:
- Fanciful marks are invented words with no prior meaning, like “Xerox” or “Rolex.” These get the broadest protection.
- Arbitrary marks are real words used for unrelated products, like “Apple” for computers.
- Suggestive marks hint at a quality without directly describing it. “Netflix” suggests internet movies.
- Descriptive marks describe the product’s features, like “Cold and Creamy” for ice cream. They get protection only after consumers come to associate the term with a specific brand, known as acquired distinctiveness.
- Generic terms are the common name for a product category, like “Computer” for computers. They can never be trademarked.
If you’re picking a brand name, fanciful or arbitrary is the safer bet. Descriptive names force years of consumer recognition before you get meaningful protection, and generic terms leave you with none. The base fee to file a federal trademark application is $350 per class of goods or services.11United States Patent and Trademark Office. Summary of 2025 Trademark Fee Changes Unlike patents and copyrights, a trademark can last indefinitely as long as you keep using it and file the required maintenance paperwork with the USPTO.12United States Patent and Trademark Office. Post-Registration Timeline
Trade Secrets
A trade secret is any business information that derives economic value from being kept confidential. The federal definition is intentionally broad, covering formulas, patterns, compilations, programs, methods, techniques, and processes in any format.13Office of the Law Revision Counsel. 18 USC 1839 – Definitions The classic examples are the Coca-Cola formula and KFC’s seasoning blend. Trade secrets also include customer lists, pricing strategies, supplier terms, proprietary algorithms, and internal manufacturing processes.
Two conditions must be met. First, the owner must take reasonable steps to keep the information secret. Second, the information must have actual or potential economic value because it is not generally known or readily discoverable by competitors.
The reasonable-measures piece is where trade secret cases get won and lost. In practice, that means:
- Access controls through passwords, encrypted files, and role-based permissions
- Non-disclosure agreements for employees, contractors, and business partners
- Physical security, including limits on personal devices in sensitive areas
- Employee training on what counts as confidential and how to handle it
- Exit procedures requiring departing employees to return materials and certify deletion from personal devices
Trade secrets are never registered with a government agency. Protection lasts as long as the information stays secret, which could be forever. The tradeoff is fragility: once a trade secret leaks or a competitor independently develops the same information through legitimate means, the protection vanishes.
Who Owns the IP
The default rule is that the person who creates something owns the IP in it. The biggest exception is the work-for-hire doctrine. When an employee creates a work within the scope of their employment, the employer owns the copyright from the start; the employee is never the legal author. This covers software written by a company’s developers, marketing copy produced by a staff writer, and designs from an in-house graphic artist.
Independent contractors are a different story. A commissioned work is a work for hire only if it falls into one of a handful of specific categories (such as contributions to a collective work, translations, or parts of a motion picture) and the parties sign a written agreement designating it as such. Without that written agreement, the contractor keeps the copyright. Businesses that hire freelancers for creative work without clear contracts often find this out the hard way.
Owners can also transfer their rights. An assignment functions like selling the IP outright, and copyright assignments must be in writing. A license, by contrast, lets someone else use the IP on defined terms while the owner keeps title. Exclusive licenses give one licensee the sole right to use the IP in a defined way, and even the owner can’t exercise the rights it exclusively licensed away. Non-exclusive licenses leave the owner free to grant the same rights to others.
How the Four Compare
Each form of IP fills a different gap, and many products rely on several at once. A smartphone maker might hold utility patents on its processor technology, design patents on the phone’s shape, copyrights on its operating system code, trademarks on the brand name and logo, and trade secrets protecting its manufacturing processes.
- Copyright: automatic upon creation, lasts the author’s life plus 70 years, protects creative expression, registration required to sue
- Patents: require application and approval, last 15 to 20 years depending on type, protect inventions and ornamental designs
- Trademarks: can last indefinitely with continued use and renewals, protect brand identifiers
- Trade secrets: no registration, last as long as secrecy holds, protect confidential business information
What Enforcement Looks Like
The remedies differ sharply across the four types, and the numbers matter when deciding what to register and when.
For copyright, an owner can recover either actual damages plus the infringer’s profits, or statutory damages of $750 to $30,000 per work infringed, rising to as much as $150,000 per work for willful infringement. Truly innocent infringers can see the floor drop to $200.14Office of the Law Revision Counsel. 17 USC 504 – Remedies for Infringement: Damages and Profits Statutory damages are only available if you registered before the infringement or within three months of publication.
For patents, a successful plaintiff is entitled to damages no less than a reasonable royalty for the infringer’s unauthorized use, and courts can award up to three times the actual damages in cases of willful infringement.15Office of the Law Revision Counsel. 35 USC 284 – Damages
Trademark cases turn on whether consumers are likely to be confused about the source of goods or services, evaluated through a multi-factor test that weighs similarity of the marks, strength of the original mark, relatedness of the products, evidence of actual confusion, and the alleged infringer’s intent.
For trade secrets, the federal Defend Trade Secrets Act provides injunctions, damages for actual losses and unjust enrichment, and in cases of willful and malicious misappropriation, exemplary damages up to double the compensatory award. In extraordinary situations a court can even order seizure of property to stop further dissemination before a full hearing.16Office of the Law Revision Counsel. 18 USC 1836 – Civil Proceedings