The director of the office has ordered a reexam without a request only 165 times since 1982, resulting in the overturning of some or all of a patent's claims 87% of the time.
FORBES: Get Katz
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。