The infringement exists even if the infringer did not know about the patent. 即使侵權人不了解專利侵權依然存在。
And the fourth chapter puts forward effective remedies for patentee and legitimate demurrers for the accused patent infringer. 第四章結合專利間接侵權的具體特徵,提出了對於專利權人切實可行的救濟措施以及被控侵權人可資抗辯的事由。