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.
Access is limited to registered UC users. SciFinder-N is the updated version of this chemistry research portal. It is an extensive database for chemistry-related literature and patents, chemical substance and reaction databases, and chemical supplier catalogs. SciFinder-N searches journal articles, book chapters, patents, conference proceedings, technical reports and chemical substance databases. It also includes MethodsNow (synthetic protocols), the PatentPak patent mapping tool, a predictive retrosynthesis planner, and added content for formulations and NMR spectra. Coverage: 1907 – present.
First-time users sign up here. Register for your account using your UC.edu email address. SciFinder-N is an 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.
