The device was protected by patent.
这一装置受专利保护。
英语解释：an official right to be the only person to make, use or sell a product or an invention; a document that proves this 专利权；专利证书
拓展：pa∙tent∙ee / ˌpætənˈtiː; 英式发音 also ˌpeit- / n
• a person or an organization that holds the patent for sth
• 专利权(所有)人；专利获得者
造个句吧：
He should be the patentee to have the right over this technology.
对于这项技术的专利权，他应该是所有者。
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