Locating Chemical Patents (for free)
Three Types of Patents 4 utility 4 design 4 plant
What is patentable? 4 compound 4 method
What is not patentable? 4 nuclear weapons, atomic energy 4 laws of nature
Uses of Patent Literature 4 build upon technical foundations 4 commercial inventions often not published elsewhere 4 lay literature
What’s free? espacenet.com
Classification of Patents 4 USPC 4 IPC
Organic Compounds USPC 4 Carbon compounds, class 260 soon to be abandoned 4 Use Class series
Inorganic Compounds 4 Class 423
Manual of Classification 4 Hormone replacement therapy –Hormones..sex 552/ on/
Classification of Chemicals International (IPC) C = Chemistry/Metallurgy C01F5/30 Organic compounds of Magnesium Chloride
Patent Technology Centers –1600 Biotechnology and Organic Chemistry –1700 Chemical and Materials Engineering
Patent Families 4 espacenet 4 match on inventor’s name
Trademarks 4 Can go from the trademark database to the patent database by noting the assignee and approximate year.
Chemical Formulae 4 Espacenet “Mg(OH)2” –use caps and quotes 4 USPTO Mg(OH)2 –caps
Fee-based services 4 Derwent 4 CAS 4 Dialog 4 STN 4 Questel