Filing a trademark application is not just about a single word or logo -- it is about building a portfolio that protects every facet of your brand. Strategic trademark class selection ensures that your mark covers the goods or services you provide today, the ones you plan to offer next year, and the adjacent categories where a competitor using your name would cause the most damage. Getting the classes right from the start saves money, avoids office actions, and creates a registration that holds up under enforcement.

Every trademark application must identify goods or services within one or more of the 45 international Nice Classification classes. You pay a separate filing fee for each class, and your protection is limited to the classes you select. That makes class selection the single highest-leverage decision in the entire trademark filing process -- it determines scope, cost, and long-term enforceability.

Understanding the Nice Classification System

The Nice Classification is an international system maintained by the World Intellectual Property Organization (WIPO) that divides all commercial goods and services into 45 classes. Classes 1 through 34 cover goods (physical products), and Classes 35 through 45 cover services. The USPTO uses this system for every trademark application, and it is the same classification framework used by nearly every trademark office in the world -- including those accessible through the Madrid Protocol.

The classification system matters because trademark protection is class-specific. A registration in Class 25 (clothing) gives you no rights in Class 9 (electronics). If someone files your exact brand name in a class you did not cover, your ability to stop them depends on whether you can prove a likelihood of confusion -- and that gets significantly harder when the goods are in unrelated classes.

The 10 Most-Filed Nice Classes

Not all classes receive equal filing volume. The following table shows the 10 most popular Nice Classes based on annual USPTO filing data. Understanding where the volume concentrates helps you anticipate competition in your categories.

Rank	Class	Category	Description	Examples
1	35	Services	Advertising, business management, retail	Online retail stores, marketing agencies, franchising
2	9	Goods	Scientific and electronic apparatus, software	Mobile apps, downloadable software, computer hardware
3	41	Services	Education, entertainment, sporting activities	Online courses, streaming services, fitness programs
4	25	Goods	Clothing, footwear, headgear	T-shirts, sneakers, hats, athleisure wear
5	42	Services	Scientific/technological services, SaaS	Cloud computing, SaaS platforms, AI services
6	43	Services	Food and drink services, accommodation	Restaurants, cafes, hotels, catering
7	16	Goods	Paper, printed matter, stationery	Books, magazines, packaging materials
8	30	Goods	Staple foods, coffee, confectionery	Coffee, tea, chocolate, baked goods
9	3	Goods	Cosmetics, cleaning preparations	Skincare, fragrances, soaps, hair products
10	5	Goods	Pharmaceuticals, dietary supplements	Vitamins, nutritional supplements, medical devices

Class 35 consistently leads because it covers retail store services -- every e-commerce company needs it, regardless of what they sell. Class 9 ranks second because it captures all downloadable software and electronic devices, making it essential for any technology company.

Matching Your Products and Services to Classes

The first step in trademark class selection is creating a complete inventory of everything you offer -- or plan to offer -- under the mark. List every product and service, then match each one to its corresponding Nice Class. The USPTO's ID Manual is the authoritative tool for this. It contains over 65,000 pre-approved descriptions organized by class, and using its exact language avoids the $200/class surcharge that applies to custom free-form descriptions.

For example, a craft brewery selling beer (Class 32), branded glassware (Class 21), and restaurant services (Class 43) needs three classes. A software startup offering a downloadable mobile app (Class 9) and cloud-based SaaS services (Class 42) needs two. A clothing brand selling apparel (Class 25) through its own online store (Class 35) also needs two.

The key principle: one product or service equals one class assignment. If your business spans multiple categories, you need multiple classes -- there is no way to consolidate unrelated goods into a single filing.

Common Multi-Class Combinations

Certain business models almost always require the same set of classes. Knowing these standard combinations prevents gaps.

Software and Technology Companies

Class 9 -- Downloadable software, mobile applications, computer hardware
Class 42 -- SaaS platforms, cloud computing, software development services
Class 35 -- Advertising services, online marketplace services (if applicable)

E-commerce and Retail Brands

Class 35 -- Online retail store services (nearly always required)
The class(es) covering the goods sold -- e.g., Class 25 for clothing, Class 14 for jewelry, Class 18 for bags

Food and Beverage Companies

Class 29 -- Processed foods (meat, dairy, oils)
Class 30 -- Staple foods (coffee, tea, bread, cereals, sauces)
Class 32 -- Non-alcoholic beverages, beer
Class 33 -- Alcoholic beverages (excluding beer)
Class 43 -- Restaurant and cafe services

Professional Services Firms

Class 35 -- Business consulting, management consulting
Class 36 -- Financial and insurance services
Class 42 -- Technology consulting, IT services
Class 45 -- Legal services, security consulting

Health and Wellness Brands

Class 5 -- Dietary supplements, vitamins, pharmaceuticals
Class 10 -- Medical devices, therapeutic equipment
Class 41 -- Fitness training, health education
Class 44 -- Medical and wellness services

Multi-class filings are submitted as a single application with one filing fee per class. This is more efficient and less expensive than filing separate applications for each class.

Cost-Benefit Analysis: How Many Classes Should You File?

Every additional class costs money -- both at filing and at every maintenance deadline for the life of the registration. Here is the full cost picture using current USPTO fees (effective January 18, 2025).

Initial Filing Costs

Classes Filed	Base Filing Fee	ITU Statement of Use	Total Initial Cost
1 class	$350	$150 (if ITU)	$350 -- $500
2 classes	$700	$300 (if ITU)	$700 -- $1,000
3 classes	$1,050	$450 (if ITU)	$1,050 -- $1,500
4 classes	$1,400	$600 (if ITU)	$1,400 -- $2,000
5 classes	$1,750	$750 (if ITU)	$1,750 -- $2,500

These are base rates using ID Manual descriptions. If you use custom free-form text instead, add $200/class -- pushing a three-class filing from $1,050 to $1,650. For the full fee breakdown and surcharge avoidance strategies, see USPTO Fee Changes: How to Avoid Surcharges.

Ongoing Maintenance Costs (Per Class, Per Cycle)

Maintenance Filing	When Due	Cost Per Class
Section 8 Declaration	Years 5--6	$325
Section 8 + 9 Combined	Year 10, then every 10 years	$650
Section 15 (Incontestability)	After 5 years of continuous use	$250

A three-class registration costs $975 at the first Section 8 filing and $1,950 at every 10-year renewal. Over a 20-year period, three classes cost roughly $6,000 in maintenance fees alone. That is money well spent if you actively use the mark in all three classes -- and wasted money if you do not.

The decision framework: File in every class where you currently use the mark or have concrete plans to use it within three years. Do not file speculatively in classes where expansion is merely theoretical. If future expansion is likely but the timeline is uncertain, use intent-to-use filings to reserve rights without committing to immediate use.

Intent-to-Use Applications for Future Classes

An intent-to-use (ITU) application lets you reserve rights in a trademark before you have actually started using it in commerce. This is one of the most powerful tools for strategic portfolio building, because it lets you lock in a priority date -- the date your application was filed -- in classes you plan to expand into.

The mechanics are straightforward. You file an ITU application identifying the classes and goods/services you intend to offer. The USPTO examines and publishes the mark just like any other application. Once it passes examination, instead of receiving a registration, you receive a Notice of Allowance. You then have six months to file a Statement of Use showing that you have begun using the mark in commerce for those goods/services. You can request up to five six-month extensions (for $125 each), giving you up to 36 months total from the Notice of Allowance.

ITU applications are especially valuable in three scenarios:

Product launches -- Lock in your trademark months before the product ships, preventing someone else from filing first.
Market expansion -- Secure rights in adjacent classes while you develop new product lines.
Defensive filings -- Cover classes where a competitor using your name would cause the most brand confusion, even if your own use in that class is still in development.

The cost is $350/class to file plus $150/class for the eventual Statement of Use -- a total of $500/class, which is modest insurance for preserving your expansion options. For a detailed comparison of ITU versus use-based filing strategies, see Intent-to-Use vs. Use-Based Filings.

Class Selection Mistakes That Cost Time and Money

After reviewing millions of trademark filings, certain patterns of class selection errors appear over and over. Here are the most common mistakes and how to avoid them.

Filing Too Narrowly

This is the most expensive mistake, because it only becomes apparent after a competitor enters your market. A clothing brand that files only in Class 25 (clothing) but does not cover Class 35 (retail store services) leaves the door open for someone else to register the same name for an online clothing store. A software company that files only in Class 9 (downloadable software) but not Class 42 (SaaS services) has no protection for the cloud-based version of the same product.

The fix: always consider the class for how you deliver the product, not just what the product is.

Filing Too Broadly

The opposite mistake is filing in every class that seems tangentially related. A small bakery does not need Class 29 (processed foods), Class 30 (staple foods), Class 32 (beverages), Class 43 (restaurant services), and Class 35 (retail) if they only sell bread and pastries from a single storefront. Two classes -- Class 30 and Class 43 -- would cover them.

The fix: file in classes where you can prove actual use or document a concrete intent to use within 36 months. Unused registrations can be cancelled via petition, and maintaining them costs money at every renewal.

Choosing the Wrong Class Entirely

Some goods fall in classes that seem counterintuitive. Sunglasses are in Class 9 (scientific apparatus), not Class 25 (clothing accessories). Leather handbags are in Class 18 (leather goods), not Class 25 (clothing). Downloadable music is in Class 9 (electronic data), not Class 41 (entertainment services) -- but live music performances are in Class 41.

The fix: always verify your class assignment against the ID Manual. Do not guess based on what seems logical.

Using Free-Form Descriptions When ID Manual Terms Exist

Since January 2025, filing with custom free-form descriptions of goods/services triggers a $200/class surcharge. Many applicants write their own descriptions without checking whether a pre-approved ID Manual entry covers the same goods. This is avoidable money left on the table.

The fix: search the ID Manual before writing any custom descriptions. If a pre-approved entry covers your goods or services -- even if the wording is slightly different from what you would choose -- use it.

Non-Traditional Marks and Portfolio Depth

Beyond standard word marks and logos, evaluate whether your brand includes protectable non-traditional elements. Trade dress (distinctive packaging or product design), sounds (a jingle or audio logo), colors (a signature brand color applied to goods), and even scents can function as trademarks if they indicate source and are not purely functional.

A robust trademark portfolio may include:

Standard character mark -- Protects the word(s) regardless of font or style
Stylized logo -- Protects a specific visual design
Slogan -- Protects a tagline or catchphrase
Trade dress -- Protects distinctive packaging, store design, or product configuration
Sound mark -- Protects an audio identifier

Each type may require its own application and its own class selections. The standard character mark is typically the highest-priority filing because it provides the broadest protection -- it covers the name in any font, color, or style. Stylized logos and slogans should follow once the core word mark is secured.

Portfolio Audit Checklist

Whether you are building a new portfolio from scratch or reviewing an existing one, this checklist identifies gaps.

Coverage Assessment

Have you listed every product and service currently offered under the mark?
Is each product/service covered by at least one registered class?
Have you included the class for your distribution method (e.g., Class 35 for online retail)?
Are planned product launches within the next 36 months covered by ITU filings?

Mark Types

Do you have a standard character (word) mark registration?
If you use a distinctive logo, is it separately registered?
Are slogans or taglines that appear in advertising protected?
Does your packaging or product design qualify as protectable trade dress?

Maintenance Status

Are all Section 8 declarations filed on time (between years 5 and 6)?
Are all Section 8/9 renewals current (every 10 years)?
Have you filed Section 15 declarations for incontestability where eligible?
Are any registrations at risk of cancellation for non-use?

Enforcement Readiness

Are you monitoring new filings in your registered classes for confusingly similar marks?
Do you have a process for filing Letters of Protest or Notices of Opposition?
Are international markets covered through Madrid Protocol or national filings?

If you find gaps, prioritize them by business impact. Missing coverage in a class where you actively sell products is more urgent than a missing ITU filing for a product that is still in concept stage. Tools like GleanMark can help you monitor new filings across all your registered classes and flag potential conflicts the same business day they appear in the USPTO database -- across the 13.9 million trademark records in the federal register.

Monitoring Your Portfolio and Enforcing Your Rights

Building a portfolio is only the first step. Maintaining and enforcing it is where long-term value is created. The USPTO publishes new applications daily, and any one of them could conflict with your registered marks.

A monitoring strategy should cover:

Same-class monitoring -- Watch for new filings in every class where you hold registrations
Related-class monitoring -- Watch adjacent classes where confusion is plausible (e.g., if you are in Class 9, also monitor Class 42)
Phonetic similarity -- Catch marks that sound like yours even if spelled differently
Design similarity -- If you have logo registrations, watch for visually similar designs

When you identify a potential conflict, you have two main options during the opposition window: a Letter of Protest (filed before publication, $150) or a Notice of Opposition (filed during the 30-day publication period). Both are significantly less expensive than litigation after a conflicting mark registers.

GleanMark's monitoring tools are built for exactly this workflow -- tracking new applications across classes and alerting you to potential conflicts so you can act during the publication window rather than after registration.

International Considerations

If you do business outside the United States -- or plan to -- your portfolio strategy needs an international dimension. The Madrid Protocol allows you to extend a U.S. application or registration to over 130 countries through a single international filing with WIPO.

Key considerations for international class selection:

Nice Classification is universal. The same 45 classes are used worldwide, so your class selections carry over directly to Madrid Protocol designations.
Goods/services descriptions may vary. Some countries accept broader descriptions than the USPTO. Others require more specificity. Local counsel can advise on country-specific requirements.
Prioritize by market. File first in countries where you already sell or have distribution agreements. Speculative international filings are expensive to maintain and difficult to enforce without local use.
Budget for local responses. Each designated country examines the mark independently. If a national office issues a refusal, you will need local counsel to respond -- at local rates.

An international filing through Madrid typically costs about $900 for the first class in a single country (WIPO base fee plus country-specific designation fee), with additional classes and countries adding incrementally. Compare this to filing a standalone national application in each country, which can cost $1,500 to $5,000 or more per jurisdiction depending on the country and local attorney fees.

Building a Portfolio That Grows With Your Brand

The best trademark portfolios are not static -- they evolve as the business evolves. Start with the minimum viable coverage: a standard character mark in the classes where you currently operate, using ID Manual descriptions to minimize filing costs. As the business grows, add classes through ITU filings, register additional mark types (logos, slogans), and expand internationally through the Madrid Protocol.

Review your portfolio annually. Are you selling new products not covered by existing registrations? Have you entered new markets? Are any registrations approaching maintenance deadlines? A yearly audit, using the checklist above, keeps your portfolio aligned with your business and prevents the gaps that competitors exploit.

Strategic class selection is not about filing in as many classes as possible -- it is about filing in the right classes, at the right time, with descriptions that maximize your protection while minimizing your costs.

Sources

All information sourced from United States Patent and Trademark Office (USPTO) and World Intellectual Property Organization (WIPO).

Strategic Class Selection and Portfolio Building