專利訴訟一直以來是台灣廠商邁向國際市場的一大挑戰，除了建構完整的智財管理能力外，若能事先預測訴訟發動的時間點與條件，不僅能避免對手的干擾風險，更能取得打下市場的先機。面對可能的侵權風險，競爭對手會在何時、何種條件下採取訴訟手段，是本文探討的焦點。本文以美國國際貿易委員會（International Trade Commission, ITC）有關智慧財產權之337條款調查案作為研究對象，配合台灣上市公司的名單找出交集廠商，分析、歸納台灣廠商在ITC案件中的訴訟趨勢，並進一步挑選出五家個案公司，觀察其與主要競爭對手間彼此的角力過程。藉由動態競爭觀點中的察覺（Awareness）－動機（Motivation）－能力（Capability）之AMC三環透視法解析訴訟發生的條件。本文的研究結果指出，個案公司與競爭對手發生訴訟戰的時間點，多半出現在彼此市佔率的成長即將出現交叉或已出現交叉之時；另一方面，搶食代工客戶或穩固訂單等需求，也會構成廠商採取訴訟打擊的條件之一。本文進一步在這樣的基礎上提出「專利侵權」指標的概念，希望能為預測專利訴訟的發生提供一個觀察基礎。 / Patent litigation is one of the difficulties facing by Taiwanese companies expanding their international market share. As a result, to tell when or under what kind of circumstances will litigations happen become an essential mission for intellectual property management. Therefore, this thesis uses case records of 337 investigations from US International Trade Commission as sample, combined with listed company of Taiwan Stock Exchange in order to select the intersection of the two. Choosing from the intersection, this thesis picks up five different companies and further analyzes the conditions under which they faced their ITC litigations. Research result indicates that most ITC cases are initiated while these companies have surpassed main competitors’ market share or nearly so. Moreover, to initiate litigations in ITC as means of stabilizing their connections with OEM/ ODM customers or merely as interference to other companies’ connections with their OEM/ ODM customers are all common reasons why patent litigations are adopted.