Besides searching in the usual methods (keyword, assignee, owner, etc), patents on chemical formulas or substances can also be searched by Markush structure or by CAS Registry Number.
Registered SciFinder-N account users can access this extensive database for chemistry-related literature and patents, chemical substance and reaction databases, and chemical supplier catalogs. The database searches journal articles, book chapters, patents, conference papers, technical reports, chemical property data.
First-time users sign up and register for a SciFinder-N account using your UC email address. Registered SciFinder-N account users can access this extensive database for chemistry-related literature and patents, chemical substance and reaction databases, and chemical supplier catalogs. The database searches journal articles, book chapters, patents, conference papers, technical reports, chemical property data.
Derwent Innovations Index does not allow structure searching, but it does allow you to search by Ring Number, Derwent Compound Number, and Derwent Registry Number.
Covers over 14.3 million basic inventions from worldwide patent-issuing authorities. Conduct patent and citation searches of inventions in chemical, electrical, electronic, and mechanical engineering. Coverage 1963-present.
