在高度競爭環境下，產業從技術競爭、價格競爭的商業競逐，近年進而轉為以智財權的訴訟發動來達成阻擊競爭對手技術的羈絆與干擾；而在專利侵權訴訟，被控侵權一方得以反制手段對系爭專利提出舉發挑戰其專利有效性，扭轉訴訟過程劣勢，更進一步得尋求將訴訟情勢導向和解談判。

本論文運用個案研究方式，以中華民國專利公告號I317967的相關訴訟所引發的專利舉發案為例。該專利自2011年至2019年陸續遭人提出6件舉發案，第1到第4次舉發案中所提出證據及其說明皆未能成立，第5件舉發案則由舉發人自行撤回，最終智慧財產局於2020年4月第6次專利舉發案做出舉發成立審定；而訴訟雙方在2020年末之際，宣布就該民事訴訟案達成和解，該專利的無效應為雙方停止此多年爭訟的關鍵轉折所在。專利舉發成立與否的關鍵在於證據。而此個案在長達十年的專利舉發過程中共涉及專利前案33件、審查意見書7件、行政訴訟書狀及判決5件、技術手冊1件、宣誓書1件、教科書1件、產品實品1件以及答辯補充理由書1件，種類繁雜而且採納或不採的理由不一，因此本論文就該專利舉發案所提證據及智慧財產局判斷理由做彙整與解析，以期本論文的結論得以於未來專利有效性的爭執中提供業界作為參考。

In the highly competitive environment, the industry has changed from the competition of technology and price to the litigation of intellectual property rights in recent years to achieve the fetter and interference of blocking competitors' technology. In the patent infringement litigation, the alleged infringer can take countermeasures to file a complaint against the contested patent, challenge its patent effectiveness, reverse the disadvantages of the litigation process, and further seek to guide the litigation situation to reconciliation negotiations.

This paper uses a case study method, taking the Republic of China Patent Announcement No. I317967 as an example. The patent has been subjected to invalidation by the yarious petitioners in six filing cases from 2011 to 2019. The evidence and explanations presented in the first to fourth cases failed to invalidated the patent. The fifth case was withdrawn by the petitioner. Finally , the intellectual property bureau made an announcement of invalidation against the patent in the sixth filing case in April 2020. At the end of 2020, both parties announced that they had reached a settlement on the civil lawsuit. Invalidity of the patent is the turning point, which should be the key for both parties to stop the litigation that lasted many years. The key to whether a patent invalidation is established or not lies in evidence. During the ten-year patent invalidation filing process, this case involved 33 priore patent cases, 7 examination opinions, 5 administrative litigation pleadings and judgments, 1 technical manual, 1 affidavit, 1 textbook, 1 actual product and 1 supplementary statement of defense. There are many kinds and different reasons for adopting or not adopting these evidences. Therefore, this paper summarizes and analyzes the evidences and the reasons for the judgment of the Intellectual Property Office of the patent case, hoping that the conclusion of this paper can be used as a reference for the industry in future patent validity disputes.

1、鍾張涵(2020)。台灣科技業最大懸案，為何台積電要輸血十億給這家中小企業。天下雜誌。
網址：https://www.cw.com.tw/article/5100251?template=transformers。
最後瀏覽日2021年9月30日。
2、經濟部智慧財產局(2019)。專利審查基準第五篇第一章專利權之舉發。
3、蔡忠峻(2017)。專利有效性判斷歧異之研究―以民事再審程序為中心。智慧財產權月刊VOL.226。
4、092118184N01專利舉發審定書，中華民國專利資訊檢索系統。
5、092118184N02專利舉發審定書，中華民國專利資訊檢索系統。
6、092118184N03專利舉發審定書，中華民國專利資訊檢索系統。
7、092118184N04專利舉發審定書，中華民國專利資訊檢索系統。
8、092118184N06專利舉發審定書，中華民國專利資訊檢索系統。
9、智慧財產法院104年度民專訴字第36號判決，司法院法學資料檢索系統。
10、智慧財產法院106年度行專訴字第74號判決，司法院法學資料檢索系統。
11、最高行政法院107年判字第163號判決，司法院法學資料檢索系統。
12、智慧財產法院107年行專更(一)字第1號判決，司法院法學資料檢索系統。