1·The U.S. patent office refuses to assess claims for perpetual motion devices unless the inventors can produce working models.
美国专利局拒绝评估认证永动装置，除非设计者们能制造出可用的模型。
2·The boom in intellectual property has been good for the Patent Office; patents are its principal source of income.
知识产权的兴盛对专利局是有利的；专利是他们的主要收入来源。
3·Probably time to think about closing the Patent Office again.
也许又得再次考虑让专利局关张大吉了。但是请等等。
4·Then it was tacked up on the wall at the U.S. Patent Office for about 40 years, where it was subjected to a strong northern light.
之后大概有40年，它被钉在美国专利局的墙上，遭受北边强烈的阳光照射。
5·But because Sackstein had described HCELL in a scientific paper, the U.S. Patent Office told him it was rejecting his application.
但是因为Sackstein曾在科学论文中描述过HCELL，美国专利局拒绝了他的申请。