Patent classification · Class Class Main group Main group Subclass Subgroup...
Transcript of Patent classification · Class Class Main group Main group Subclass Subgroup...
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Patent classification
Overview and considerationsMuscat
20-21 March
2017
Alex Riechel
Industrial Property Information Officer
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Overview
What are advantages and disadvantages of patent
classification?
How is the IPC structured?
How can I find relevant IPC symbols?
How can I view the IPC scheme?
What challenges might I face when using patent
classification?
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Advantages of classification vs. keywords
Terminology and jargon independent (including changes
in terms used over time)
Language independent
� A more complete and precise search
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Advantages of patent classification vs.
keywords
Applied in a standardized manner to patent documents
Available for patent documents published (nearly)
anywhere in the world
Available for (old) patent documents for which little or no
searchable text is available
Specially adapted for patent documentation
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Disadvantages of patent classification vs.
keywords
May not be available for all areas of technology
May not be specific enough for a particular search
May not be available for all documents
Potentially complex
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IPC: Structure
Hierarchical
Section
Class
Subclass
Main group
Subgroup
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IPC: Structure
Section
Subclass
Class Class
Main group Main group
Subclass
Subgroup Subgroup
- Subgroup
-
-
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IPC: Structure
C
Subclass
C04 Class
C04B 7/00 Main group
C04B
Subgroup C04B 7/02
- C04B 7/06
-
-
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IPC: Structure
C
C04
C04B
C04B 7/00
C04B 7/02
C04B 7/06
�Chemistry
�Cements; concrete; artificial stone;
ceramics; refractories
�Lime; magnesia; slag; cements;
compositions thereof-; artificial
stone; ceramics; refractories;
treatment of natural stone
�Hydraulic cements
�Portland cement
�using alkaline raw materials
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IPC: Structure (subgroups)
� More dots = lower hierarchical level
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IPC: Structure (subgroups)
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IPC: Structure (subgroups)
�
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IPC: Structure (notes and references)
� Relevant symbols� Relevant symbols, definitions� Relevant symbols, definitions, versions
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Scenario
You have been requested
to retrieve patent
documents related to
semiconductor lasers and
have decided to use IPC
classification for this
purpose.
Photo source: NASA
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Tools
Terms
Catchwords
Definitions
Scheme
STATS
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IPC Official Publication
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IPC Terms
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IPC Terms
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IPC Catchwords
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IPC Scheme
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IPC Terms
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IPC Definitions
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IPC Terms
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IPC Definitions
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IPC Terms
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IPC Official Publication
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IPC STATS
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IPC STATS
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IPC STATS
H01S 5/183
H01S 5/14
H01S 5/40
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IPC STATS
H01S 5/00
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View options
Full
Path
Hierarchical
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IPC Official Publication
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IPC: Structure (full)
Section
Subclass
Class Class
Main group Main group
Subclass
Subgroup Subgroup
- Subgroup
-
-
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IPC Scheme: Full
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IPC: Structure (path)
Section
Subclass
Class Class
Main group Main group
Subclass
Subgroup Subgroup
- Subgroup
-
-
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IPC Scheme: Path
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IPC: Structure (hierarchic)
Section
Subclass
Class Class
Main group Main group
Subclass
Subgroup Subgroup
- Subgroup
-
-
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IPC Scheme: Hierarchic
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Classification
Structure
Arrangement
Composition
Function
Advantages
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Scenario
A pharmaceutical company develops a new compound
in its laboratories and files a patent application for this
compound.
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Invention
Structure
Cyclic compound
Six-membered
Orthocondensed
Heterocyclic
Containing nitrogen
-
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IPC Scheme: C07D 471/04
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IPC Scheme: A61K 31/4985
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Caution!
Multiple classification symbols may have a similar scope
Consider different classifications that may be relevant
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Scenario
The pharmaceutical company discovers that the
compound it developed has anti-inflammatory and anti-
neoplastic (anti-cancer) properties.
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Invention
Structure
Cyclic compound
Six-membered
Orthocondensed
Heterocyclic
Containing nitrogen
-
Function
Anti-arthritic
Anti-neoplastic
-
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IPC Scheme: A61P 19/02
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IPC Scheme: A61P 35/04
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Tip!
Inventions may only be classified according to certain
aspects
Consider all different aspects of inventions to be
searched (structure, function)