First in possession is first in right.glossary / First in possession is first in right., 占有在先,权利优先 First in possession is first in right.占有在先,权利优先。该规则适用于双方都是不动产进占者的情况。 词条贡献者 译者崇载,国际名校知识产权法专业,擅长翻译各种与知识产权相关的法律文件。