Until 1790, each state had its own patent legislation and issued patents independently.

在 1790 年之前，各个州有自己的专利权法规，它们各自颁发专利。

youdao

Search the Issued Patents and the Published Applications databases by "Current US Classification" and access full-text patents and published applications.

使用当前分类查找授权专利和公开专利申请数据库，并阅读全文专利以及公开专利申请文件；

youdao

He said that although gene patents had been issued for decades, the patentability of genes had never been examined in court.

他说虽然基因专利已经被颁发了几十年，但是基因的可专利性从未在法庭上检验过。

youdao

Hillcrest has more than 50 issued patents, with more than 200 applications pending, for its ground breaking technology, and has received numerous accolades for its products.

ENGADGET: blogger-avatar

The PTO multiplied the total number of all patent applications filed by the rate at which all issued patents might potentially be subject to a charge of inequitable conduct historically.

FORBES: New Patent Regs May Inspire More Litigation, Not Less

Over sixty percent of issued patents now cover software.

FORBES: At CES, Companies Large and Small Bash Broken Patent System