Locating Chemical Patents (for free)

1
Locating Chemical Patents(for free)
2
Three Types of Patents

• utility
• design
• plant

3
What is patentable?

• compound
• method

4
What is not patentable?

• nuclear weapons, atomic energy
• laws of nature

5
Uses of Patent Literature

• build upon technical foundations
• commercial inventions often not published
  elsewhere
• lay literature

6
Whats free?

• www.uspto.gov
• espacenet.com

7
Classification of Patents

• USPC
• IPC

8
Organic Compounds

• USPC
• Carbon compounds, class 260 soon to be abandoned
• Use Class 532-570 series

9
Inorganic Compounds

• Class 423

10
Manual of Classification

• Hormone replacement therapy
• Hormones..sex 552/502
• http//www.uspto.gov/web/patents/classification/

11
Classification of Chemicals

• International (IPC)
• C Chemistry/Metallurgy
• C01F5/30 Organic compounds of Magnesium Chloride

12
Patent Technology Centers

• http//www.uspto.gov/web/info/pat-tech.htm
• 1600 Biotechnology and Organic Chemistry
• 1700 Chemical and Materials Engineering

13
Patent Families

• espacenet
• match on inventors name

14
Trademarks

• Can go from the trademark database to the patent
  database by noting the assignee and approximate
  year.

15
Chemical Formulae

• Espacenet Mg(OH)2
• use caps and quotes
• USPTO Mg(OH)2
• caps

16
Fee-based services

• Derwent
• CAS
• Dialog
• STN
• Questel