Transcript Locating Chemical Patents (for free)

Locating Chemical Patents
(for free)
Three Types of Patents
 utility
 design
 plant
What is patentable?
 compound
 method
What is not patentable?
 nuclear weapons, atomic energy
 laws of nature
Uses of Patent Literature
 build upon technical foundations
 commercial inventions often not published
elsewhere
 lay literature
What’s free?
 www.uspto.gov
 espacenet.com
Classification of Patents
 USPC
 IPC
Organic Compounds
USPC
 Carbon compounds, class 260 soon to be
abandoned
 Use Class 532-570 series
Inorganic Compounds
 Class 423
Manual of Classification
 Hormone replacement therapy
– Hormones..sex 552/502+
http://www.uspto.gov/web/patents/classificati
on/
Classification of Chemicals
International (IPC)
C = Chemistry/Metallurgy
C01F5/30 Organic compounds of Magnesium
Chloride
Patent Technology Centers
http://www.uspto.gov/web/info/pat-tech.htm
– 1600 Biotechnology and Organic Chemistry
– 1700 Chemical and Materials Engineering
Patent Families
 espacenet
 match on inventor’s name
Trademarks
 Can go from the trademark database to the
patent database by noting the assignee and
approximate year.
Chemical Formulae
 Espacenet “Mg(OH)2”
– use caps and quotes
 USPTO Mg(OH)2
– caps
Fee-based services
 Derwent
 CAS
 Dialog
 STN
 Questel