Do the legal interests that a worker obtains after 15 years of filing a lawsuit against a company that denied his rights count as usury?

It is not permissible for the employee to take from the money more than what he is lawfully entitled to. The judge's ruling does not make lawful what is unlawful if he knows that he is not entitled to it, because the Prophet, peace and blessings be upon him, said: "You people come to me for judgments, and perhaps some of you are more eloquent in presenting their case than others. So, whoever I rule in his favor concerning something that rightfully belongs to his brother, based on his words, then I am only cutting off a piece of Hellfire for him, so he should not take it." It is not permissible to take interest on the salary because it is not growing capital. However, if these benefits are compensation for what the employee spent on lawyer fees and legal procedures, then there is no harm in him taking them.