Answer:
Violation of intellectual property rights is known as infringement. The most common infringements are appropriating someone else's property rights without authorization and using something else's property without paying for it.
For example a patent infringement happens when a company uses someone else's patent for producing their owns products or services, e.g. copy cell phone technologies.
Another common example is copyright infringement that happens when someone downloads a movie, song or software from the internet without paying a fee.