Locate online patent services and information. Patent Center. Single interface replacement for EFS-Web, Private PAIR and Public PAIR. Electronic Business Center; Check application status. Check patent application status with Patent Center. Fees and payment. Pay maintenance fees and learn more about filing fees and other payments. Patent Trial ... More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.