同样重要地，法庭一贯认为当使用者不拥有著作权或者没有被授权就去交换享有版权的文件，他们就是非法侵犯著作权。
Importantly, too, courts have consistently held that when users swap copyrighted files without owning the copyright or having a license to do so, they are illegally infringing copyright.
同时，专利、商标、版权发也经常用于限制国外被许可人未经授权的销售，条件是许可人具有有效的专利、商标和受保护的版权。
Also, patent, trademarks laws can often be used to bar unauthorized sales by foreign licensee, provided that the licenser has valid patent, trademark, or copyright protection.
为了控制这种未经授权的使用技术，一些法律，如专利法，版权法等被起草在世界各地。
To control this unauthorized use of technology several laws like patent laws, copyright laws etc were drafted all around the world.
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