Patent Portal is a free patent search tool that retrieves patents and patent applications from the U.S. Patent and Trademark Office. You can use it to:- Search the USPTO for patents and patent applications based on title, date, application number, and more- View documents as searchable text- View documents as high-resolution images- Add notes to documents- Create document sets and email them to others with your notesPatent Portal was developed by Cooper Legal Group (cooperlegalgroup.com), an intellectual property law firm located just outside of Cleveland, Ohio.