查看、印、存美国专利的浏览器插件，全功能版可免费试用3天，（到原始网站下载）然后变为免费版，功能有部分限制。

• Designed specifically for patent research at the databases of the United States Patent and Trademark Office( USPTO) Web Site, this internet TIFF Viewer is all you need to view/ save/ print patents with ease directly over the internet.