Short answer. Trade-marks and trade-names are governed by special laws, not by the Civil Code itself. The Civil Code expressly defers on this subject, leaving the substantive rules on trademark and trade-name rights to be found in the separate legislation dealing with them.
What the law says
Trade-marks and trade-names are governed by special laws.
Civil Code, Article 522 — Trade-marks and Trade-names Follow Special Laws. Read the full provision →
The Civil Code hands this subject off entirely
The statute is a single, direct sentence: trade-marks and trade-names are governed by special laws. Rather than laying out its own rules on how trademarks or trade names are created, protected, or enforced, the Civil Code simply acknowledges that this area belongs to separate legislation. This means you will not find the substantive rules on trademark rights within the Civil Code's own text — this article is essentially a signpost pointing elsewhere.
Why property law leaves this to special legislation
This article sits among the Civil Code's general provisions on property and possession, a context built around tangible things and traditional real and personal property. Trade-marks and trade-names are intangible commercial identifiers whose protection depends on registration systems, use in commerce, and rules distinct from how ownership of a physical object is acquired or possessed. Rather than stretching the general property framework to cover this different kind of interest, the Code defers to laws specifically designed for it.
What this means if you have a trademark or trade-name question
If your concern involves registering a trademark, resolving a dispute over a trade name, or understanding what rights a trademark or trade name gives you against others using a similar mark, this Civil Code article tells you that the answer lies in the special law governing that subject, not in the Civil Code's general property rules. This provision itself does not supply any of those substantive answers, define what qualifies as a protectable mark, or set out remedies for infringement — it only confirms that the Civil Code is not the source to look to for any of it, and that a different, dedicated statute is where those specific questions must be resolved.
A pattern that recurs elsewhere in the Civil Code
This kind of deference is not unique to trade-marks and trade-names — the Civil Code takes a similar approach with several other subjects that later developed their own comprehensive, specialized legislation, rather than trying to keep pace with fast-moving commercial or technical fields inside its own general provisions. Recognizing this pattern helps explain why a single short article like this one exists: it is not meant to be the last word on the subject, but a deliberate hand-off to a body of law built specifically to regulate it.