Your business name, logo, and product names are how customers find you and how competitors can free-ride on you. Trademark law protects those identifiers — but the protection you actually have depends on choices most owners make early and casually: what name you picked, whether you searched it first, and whether you registered it anywhere. Here is a plain-English map of trademark basics for California businesses, from common-law rights you already have to the federal registration you probably want.
What a trademark is — and what it is not
A trademark is any word, name, symbol, or design used to identify the source of goods or services and distinguish them from those of others. Marks used with services are technically service marks; the law treats them essentially alike. Two common confusions are worth clearing up front. First, registering an entity name with the California Secretary of State, or a fictitious business name with your county, gives you no trademark rights — those filings only clear administrative name availability. Second, owning a domain name is not a trademark either. Plenty of businesses have discovered that their incorporated, DBA-filed, domain-secured name still infringes someone else's mark.
Strong marks and weak marks: the distinctiveness spectrum
Not all names are equally protectable. Courts rank marks on a spectrum:
- Fanciful (invented words) and arbitrary (real words unrelated to the product — think of a fruit name on computers) marks are the strongest.
- Suggestive marks hint at qualities without describing them and are protectable without more.
- Descriptive marks — "Quality Plumbing," "Fresh Baked" — get protection only after acquiring "secondary meaning," which typically requires substantial use and marketing.
- Generic terms — the common name of the product itself — can never be trademarks.
The business instinct is to pick a name that describes what you do. The legal reality is that descriptive names are hard to protect and easy for competitors to crowd. Before falling in love with a name, run a real clearance search: not just the exact name, but similar spellings and sound-alikes, across the USPTO database, state registries, business filings, domains, and general web use. A professional search and opinion costs a fraction of rebranding after a demand letter.
Common-law rights: what you get from use alone
In the United States, trademark rights come from use, not registration. By actually using a distinctive mark in commerce, you acquire common-law rights — but only in the geographic area where you use it and have a reputation. For a business serving customers across states or online, that patchwork is a poor fit: a later user in another region can build rights of its own, and proving your priority and territory in a dispute is expensive. Common-law rights are real (the ™ symbol signals a claim to them), but they are a floor, not a strategy.
State versus federal registration
California offers state trademark registration through the Secretary of State under the Model State Trademark Law, Business and Professions Code § 14200 et seq. It is inexpensive, relatively quick, lasts five years per term with renewals, and provides a public record of your claim plus certain state-law remedies. Its limit is geographic: the registration is limited to California and requires use in this state.
Federal registration with the USPTO is the standard businesses should usually aim for. A registration on the Principal Register generally provides constructive nationwide priority dating from your filing date, subject to earlier users, a legal presumption of ownership and validity, the right to use the ® symbol, potential access to remedies tied to registration in infringement cases, the ability to record with U.S. Customs against counterfeit imports, and eligibility for "incontestable" status after five years of continuous use. Federal applications can also be filed on an intent-to-use basis before launch, establishing a nationwide priority date contingent on later use and registration while you build the brand. Registrations last ten years and are renewable indefinitely, subject to maintenance filings — including a declaration of continued use between the fifth and sixth years that catches many owners by surprise.
Owning it right — and keeping it
A few structural points prevent the most common problems. Register the mark in the name of the entity that actually uses it, not a founder personally — and if a founder or predecessor did acquire the rights, assign them to the company in writing, with the goodwill. If a designer created your logo, get a written assignment of the copyright; without one, the designer may own the artwork you built the brand on. Use the mark consistently, police obvious infringements (unchecked third-party use can erode distinctiveness), and calendar the maintenance deadlines. Trademarks also become real assets: they are listed, valued, and scrutinized in every financing and acquisition, and a clean chain of title pays for itself in diligence. Our business formation practice helps new businesses clear and structure their brand ownership from day one, and our business contracts practice papers the assignments and license agreements that keep the rights where they belong.
Talk to a California business attorney
Whether you are naming a new venture or wondering if the brand you have built is actually protected, a clearance review and registration strategy session is a smart early investment. Schedule a free consultation or call (949) 418-2113.
This article is attorney advertising and provides general information only. It is not legal advice and does not create an attorney–client relationship. The law changes, and this article reflects the law as of its publication date. Every situation is different — contact us to discuss how the law applies to your exact circumstances. See our full disclaimer.

