How to Trademark a Business Name in California
Updated: 5 days ago
If you've built a business name worth protecting, trademarking it is one of the smartest investments you can make. A registered trademark gives you the exclusive right to use your name nationwide in your industry, the legal power to stop copycats, and a durable asset that grows in value alongside your brand.
This guide walks through how the process works, what to expect, and how to avoid the mistakes that derail most trademark applications.
What Is a Trademark?
A trademark is a word, phrase, logo, or combination thereof that identifies the source of goods or services and distinguishes them from competitors. When you register your business name as a trademark with the U.S. Patent and Trademark Office (USPTO), you receive a federal registration that applies nationwide — not just in California.
This matters because trademark rights in the U.S. are based on use, not registration. But registration gives you presumptive nationwide ownership, the right to sue in federal court, and the ability to record your mark with U.S. Customs to block infringing imports.
Step 1: Confirm Your Name Is Actually Trademarkable
Not every business name qualifies for trademark protection. The USPTO evaluates marks on a spectrum of distinctiveness:
Fanciful marks (invented words like "Kodak" or "Xerox") — strongest protection
Arbitrary marks (real words applied to unrelated goods, like "Apple" for computers) — strong protection
Suggestive marks (hints at a quality without describing it, like "Netflix") — protectable
Descriptive marks (directly describes your product or service) — generally not protectable unless you can show acquired distinctiveness through years of use
Generic terms — never protectable
If your business name simply describes what you do — "California Business Law Group," for example — you may face an uphill battle. An attorney can evaluate your mark's strength before you invest in an application.
Step 2: Conduct a Trademark Clearance Search
Before filing anything, you need to know whether someone else is already using a confusingly similar mark in your industry. This is called a trademark clearance search, and skipping it is one of the most common and costly mistakes business owners make.
A clearance search goes beyond typing your name into the USPTO database. It includes:
A search of all USPTO registered and pending marks
A search of state trademark registrations
A common law search (unregistered marks in use that could still have priority over you in certain regions)
Domain name and business name searches
If a conflict exists, filing anyway can result in a rejection — or worse, a cease-and-desist letter after you've already built brand recognition around the name. Finding out early gives you time to rebrand, negotiate a coexistence agreement, or challenge a mark that shouldn't have been registered in the first place.
Step 3: File the USPTO Application
Trademark applications are filed with the U.S. Patent and Trademark Office. You'll need to specify:
The mark itself. Either a standard character mark (the words themselves, in any font or style) or a stylized/design mark (a specific logo or stylized presentation). Most businesses should file both — the word mark first, since it provides broader protection.
The goods and services. The USPTO organizes goods and services into 45 international classes. You must identify which classes apply to your business and describe your specific goods or services within each. Overly broad or vague descriptions are a common reason for rejection.
The filing basis. Either:
Use in commerce (you're already using the mark in connection with your goods or services across state lines), or
Intent to use (you haven't started using it yet but have a bona fide intention to do so)
If filing on an intent-to-use basis, you'll need to file an additional Statement of Use once you begin using the mark — and you have a limited window to do so.
The filing fee. As of 2026, USPTO fees are $250–$350 per class, per application, depending on the filing option you select. Most businesses need at least one class; some need several.
Once your federal application is filed, the USPTO assigns it a serial number and a filing date — both of which matter. Your filing date establishes your priority date, meaning that if someone else files a similar mark after you, your earlier filing date gives you the superior claim, even if they began using the mark first in some regions. Applications are typically assigned to an examining attorney within three to six months of filing. During that window, your application is pending but not yet approved, and you should begin using the ™ symbol to signal your claim while the process runs its course. If you are filing on an intent-to-use basis — meaning the mark is not yet in use in commerce — you will receive a Notice of Allowance after the examining attorney approves the mark, at which point you have six months (extendable in six-month increments, up to three years total) to begin using the mark and submit a Statement of Use to the USPTO before your registration can be finalized. Skipping or missing that deadline forfeits the application entirely, so calendar reminders at the outset are not optional — they are essential.
Step 5: Navigate the Examination Process
After filing, your application is assigned to a USPTO examining attorney — typically within 3 to 6 months. The examiner reviews your application for legal compliance and potential conflicts with existing marks.
If the examiner has concerns, they issue an Office Action — a formal letter outlining the problems. Common issues include:
Likelihood of confusion with an existing registered mark
A mark that is merely descriptive
Identification of goods/services that is too vague
Procedural deficiencies in the application
You have a limited time (typically 3 months, extendable to 6 months for a fee) to respond. Responses to Office Actions require legal argument and, in some cases, evidence. An experienced trademark attorney can significantly improve your odds of a successful response.
Step 5: Publication and Registration
If the examiner approves your mark, it's published in the USPTO's Official Gazette for a 30-day opposition period. During this time, any third party who believes your mark would harm them can file an opposition — essentially a legal proceeding before the USPTO's Trademark Trial and Appeal Board (TTAB). Oppositions are more common than most applicants expect, particularly in crowded industries. If no opposition is filed (or if one is resolved in your favor), your mark proceeds to registration and you receive your federal registration certificate. The entire process — from filing to registration — typically takes 8 to 14 months with no significant obstacles.
What About California State Trademark Registration?
California also has a state trademark registration system through the California Secretary of State. A California registration costs far less than a federal registration and is faster — but it only protects you within California. For most businesses, federal registration is the right choice. However, a California registration can be a useful interim step if you need protection quickly while your federal application is pending, or if your business genuinely operates only within California.
How to File a California State Trademark
Filing with the California Secretary of State is a separate process from the USPTO and follows its own rules under the California Business and Professions Code (§§ 14200–14272).
Step 1: Confirm the mark is in use in California. Unlike the USPTO, California does not accept intent-to-use applications. You must already be using the mark in commerce within California before you can file. The mark needs to be actively associated with goods sold or services rendered in the state.
Step 2: Prepare your application. The application is filed with the California Secretary of State's office and requires: the mark itself (a clear specimen showing how it's actually used — a label, tag, screenshot, or advertisement), the date of first use in California, the date of first use anywhere, a description of the goods or services, and the international class or classes that apply.
Step 3: Submit and pay the filing fee. As of 2026, California charges $70 per class. Applications can be submitted by mail or in person; the Secretary of State's office does not currently offer online filing for trademark registrations. Processing typically takes several weeks.
Step 4: Respond to any deficiencies. The Secretary of State reviews applications for completeness and may issue a deficiency notice if anything is missing or unclear. You'll have a limited window to correct and resubmit.
Step 5: Registration and maintenance. A California trademark registration is valid for 10 years and can be renewed for additional 10-year terms. To maintain your registration, you must continue using the mark in California — abandonment (non-use for two consecutive years creates a rebuttable presumption of abandonment) can invalidate your rights even on a registered mark.
What California registration does — and doesn't — give you. A California registration gives you constructive notice to anyone doing business in the state and creates a public record of your claim. It does not give you nationwide priority, the right to use the ® symbol (that requires federal registration), or U.S. Customs enforcement rights. Think of it as a meaningful but geographically limited layer of protection — useful while your federal application is pending, or for businesses whose operations genuinely won't extend beyond California.
Common Mistakes to Avoid When you Trademark a Business Name
Waiting too long. Trademark rights go to the first to use the mark, but registration goes to the first to file (with some exceptions). If you're building a brand, file early.
Filing without a clearance search. The USPTO filing fee is non-refundable. Filing on a mark that conflicts with an existing registration is an expensive way to learn that lesson.
Filing in the wrong classes. If you later expand into new product or service categories, your existing registration may not cover them. Think ahead.
Using the ® symbol before registration. You can use ™ once you begin using a mark in commerce. The ® symbol can only be used after federal registration is granted. Misuse of ® is a violation of federal law and can complicate your application.
Forgetting maintenance filings. A federal trademark registration doesn't last forever on its own. You must file a Declaration of Use between years 5 and 6, and renew every 10 years. Missing these deadlines can cancel your registration.
How Spiller Law Can Help
At Spiller Law, we guide founders, entrepreneurs, and creators through every stage of the trademark process — from initial clearance searches and application strategy to responding to Office Actions and managing your trademark portfolio over time. We work with clients in San Francisco, Los Angeles, Silicon Valley, and throughout California.
Schedule a free consultation to discuss your trademark goals and get an honest assessment of where you stand.
Spiller Law PC is a San Francisco business, entertainment and sports law firm advising startups, founders, creators, and athletes. The information provided in this article is for general informational purposes only and should not be construed as legal advice. Readers are advised to consult with their own legal counsel for advice specific to their circumstances.
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