As a lawyer, I have been dealing with intellectual property law from the very beginning (and even before that).
Intellectual property is often difficult to grasp and delimit, precisely because it does not include physical objects, but immaterial goods, non-physical things.
Intellectual property includes, for example, copyright, trademarks, patents, know-how, design patents. A broad concept of intellectual property also includes the general right of personality, the right to a name or fair competition. WIPO defines intellectual property broadly as “the scientific discoveries, protection against unfair competition and all other rights arising from intellectual activity in the industrial, scientific, literary or artistic fields.”
This concerns license agreements, infringements of intellectual property rights, warnings, injunctive relief, non-disclosure agreements, trademark registrations, etc.