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Publication coverage: 1790 - present (updated weekly)The USPTO's Patent Public Search system contains more than 11 million US patents issued from 1790 to the present and 7 million US published applications from 2001 forward. Full-text patents are searchable from 1976 forward. PDF documents and OCR text are available prior to 1976. Patent documents are classified under the Cooperative Patent Classification (CPC) and International Patent Classification (IPC) systems. New patents are issued weekly on Tuesdays; new applications are published on Thursdays.
Publication coverage: 1960's-Underground and Independent Comics, Comix, and Graphic Novels is the first ever scholarly, primary-source database focused on adult comic books and graphic novels. Here are the works of artists both celebrated and overlooked, alongside interviews, criticism, and journal articles that document the continual growth and evolution of this artform.