These three words get used interchangeably and protect completely different things. Choosing the wrong one means paying for protection you do not need while leaving the valuable asset exposed.
Trademark: how customers identify you
A trademark protects the words, names, logos, and slogans that identify the source of goods or services, your brand in the marketplace. Rights arise from actual use in commerce, and federal registration with the USPTO strengthens them substantially: nationwide rights, a public record, the ® symbol, and a far better position in disputes.
Protection can last indefinitely, provided you keep using the mark and file the required maintenance documents.
Copyright: original creative expression
Copyright protects original works fixed in a tangible medium, writing, photographs, music, video, artwork, software code, course materials. It attaches automatically the moment the work is created; you do not have to register to own it.
Registration with the Copyright Office still matters, because it is generally a prerequisite to filing an infringement suit and can unlock statutory damages and attorney's fees if you register in time. For a business whose product is content, that is significant.
Copyright protects expression, never the underlying idea. Two people may write about the same subject; neither may copy the other's words.
Patent: inventions and how things work
A patent protects a new, useful, and non-obvious invention, a machine, process, composition, or improvement, for a limited term. Patents are the most demanding and expensive of the three, require detailed technical disclosure, and are examined rigorously. Public disclosure before filing can forfeit rights, so timing matters.
Most businesses need more than one
A simple example. A company sells an online course:
- The company name and course brand, trademark
- The videos, workbook, and slides, copyright
- Proprietary software powering the platform, copyright, possibly patent
- The unpublished method behind the pricing model, trade secret
Where to start
For most small businesses and nonprofits the answer is the trademark, because the brand is the asset customers actually attach to and the one most likely to be challenged or copied. Our flat-fee trademark service covers the clearance search and USPTO filing, and we handle copyright registration as well.
This article is general information, not legal advice, and reading it does not create an attorney-client relationship. Rules differ by state and change over time. Please speak with a licensed attorney about your own situation.