In 2002, the Nice Classification's 8th edition split the old, broader Class 42 into today's Classes 42, 43, 44, and 45, narrowing 42 into a catch-all for "scientific and technological services." Nobody quite anticipated it would become the defining trademark class of the entire software industry. Over two decades later, Salesforce, Stripe, Shopify, Slack, Zoom, and thousands of B2B SaaS companies register their most important trademarks here.
The Founders' Blind Spot: Product vs. Service
Here's a pattern trademark attorneys see constantly: a startup files a Class 9 trademark for their app, gets it registered, and assumes they're protected. Two years later a competitor launches a SaaS product with a nearly identical name, and the first company's lawyer has to explain an uncomfortable truth — the Class 9 mark doesn't clearly cover the hosted service. The USPTO distinguishes between software as a product (Class 9) and software as a service (Class 42), and a registration in one may not stop a competitor using a similar name in the other.
| Situation | Class |
|---|---|
| Users download and install the app | 9 |
| Users access it through a URL, nothing downloaded | 42 |
| Both — a desktop app plus a hosted service | 9 and 42 |
| Payment processing, cybersecurity, IT consulting via API or platform | 42 |
| AI model delivered through an API or web interface | 42 |
Rule of thumb: if your users access your product through a URL and never download anything, your primary trademark class is 42. If they download an app, add Class 9 as well. If you're not sure, file both.
Getting the Identification of Services Right
The USPTO requires specific identification of services — "software services" alone gets rejected because it doesn't describe what the software does. Acceptable phrasing includes "software as a service (SaaS) featuring software for project management," "providing temporary use of non-downloadable software for customer relationship management," "cloud computing services featuring software for data analytics," and "cybersecurity services, namely, monitoring and threat detection for computer networks." The phrase "non-downloadable software" is the standard USPTO-approved language for SaaS products, and using it correctly prevents unnecessary office actions over goods identification. Salesforce's CRM platform, Stripe's API-based payment processing, Shopify's e-commerce platform, Zoom's video conferencing, and Cloudflare's CDN, DNS, and cybersecurity services are all built on Class 42 registrations using this kind of precise language.
Quick answers: if you offer both a SaaS platform and a downloadable SDK, you need both Class 9 and Class 42 — each protects a different form of the product. IT consulting, software development, and technology design services fall in Class 42, while general business strategy consulting is Class 35. An AI chatbot delivered as a hosted service is Class 42, with a description like "AI-as-a-service featuring a large language model for text generation" being the correct approach — the trademark protects the brand name under which the service is offered, not the model itself. And the standard identification formula is "software as a service featuring software for [your actual function]" — specific enough to register, broad enough to cover your roadmap as the product evolves.
See which trademarks are already registered in Class 42 before filing your application.