No, not automatically. A trademark registration does not protect your business in general, but the specific goods and services you have specified in your application, organized in classes from the Nice Classification. If you sell something in two years that falls outside those classes, that new product will not be covered by your existing registration.
This is a surprise for many entrepreneurs, because it feels logical that 'my trademark' simply belongs to me, for everything I do. That is not how trademark law works. The protection is linked to a list of goods and services that you choose yourself at the time of application, and that choice determines afterwards what is and is not protected.
Why a trademark is tied to classes, not to your business
The Nice Classification divides all conceivable goods and services into forty-five classes, from building materials to legal services. When you apply, you indicate which classes you are active in or want to become active in in the short term. The BOIP or EUIPO assesses your trademark only for those classes, and other parties who want to use the same sign in a completely different class will generally not conflict with your registration.
This system exists because trademark law does not grant comprehensive ownership rights to a name, but protection within a defined commercial domain. Two businesses can theoretically operate under the same name as long as they operate in entirely different sectors, although in practice this is rarer than it seems because many classes overlap. When determining the correct classes, it is often underestimated how closely related services are to each other, which is precisely why this choice must be made carefully.
What does this mean for plans that are not yet concrete
Suppose your installation business currently only provides services, but in a year you also want to sell your own equipment under the trademark. At the time of application, that plan may not yet exist, or may be too vague to already choose classes for it. Nevertheless, it is wise to think about the direction in which your business is developing, because a class that you add later counts from the date of that later application, not retroactively.
That difference in date is precisely where the risk lies. If someone else applies for the same sign for that product class in the meantime, that application may take priority over yours, even if you have been using the name longer for your services. For plans that are concrete enough to be realized within a foreseeable time, it is therefore worth including them in your first application. have the appropriate classes for your plans determined on a case-by-case basis provides a good starting point to sharpen that discussion.
When expanding is wise
There is no obligation to include as many classes as possible in case of doubt. A broad application with classes you will never use costs more in fees and results in a weaker position in case of opposition, because a counterparty can argue that you do not use the trademark in that class at all. The consideration is therefore not 'as many as possible', but 'what aligns with what I will actually do within a reasonable timeframe'.
What if you claim a class but never use it
The opposite scenario also occurs: a class is applied for for a product line that ultimately never gets off the ground. Trademark law includes the principle of genuine use for this purpose. If a trademark remains completely unused in a particular class for a number of years, usually five, a third party can apply to have the registration revoked for that class due to non-use. A registered class is therefore not a permanent right of claim without any obligation attached.
For most SMEs, this is mainly relevant during significant currency fluctuations, for example when a service provider discontinues a product line that was once registered. Whether a cancellation application succeeds in a specific case depends on the facts and is a matter for the competent authority or ultimately the court; that is not an assessment to be made here.
Get a clear picture beforehand
Because class selection determines how far your protection extends, it is something to clarify before filing, not something to fix afterwards. A non-binding first impression of where you stand, with a few questions see whether your name and classes work well together, requires no account and no obligation. What the service fee for a complete application includes and what the EUIPO or BOIP fees are in addition are clearly set out side by side on the pricing page.
If you are unsure whether a specific future plan falls within your current classes, that is exactly the kind of question the conflict search and class selection in an application are designed for. More examples and frequently encountered situations are collected in the FAQ overview.
If you want to know whether your current or planned situation aligns well with what you have already registered, do the free quick-scan or browse through the knowledge base for more background on classes and applications.