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What are the 40 TRIZ Inventive Principles?

The 40 TRIZ Inventive Principles are a set of generalized problem-solving strategies that represent the most frequently recurring inventive solutions, extracted from the systematic analysis of hundreds of thousands of patents, and used to systematically resolve technical contradictions and stimulate innovative thinking across diverse engineering and non-engineering domains.

40 TRIZ Principles

Segmentation
01-

Segmentation

Taking Out
02-

Taking Out

Local Quality
03-

Local Quality

Asymmetry
04-

Asymmetry

Merging
05-

Merging

Universality
06-

Universality

Nested Doll
07-

Nested Doll

Anti-Weight (Counterweight)
08-

Anti-Weight (Counterweight)

Prior Counteraction
09-

Prior Counteraction

Prior Action
10-

Prior Action

Cushion in Advance (Before-hand Cushioning)
11-

Cushion in Advance (Before-hand Cushioning)

Equipotentiality
12-

Equipotentiality

The Other Way Round (Inverse)
13-

The Other Way Round (Inverse)

Spheroidality - Curvature
14-

Spheroidality - Curvature

Dynamics
15-

Dynamics

Partial or Excessive Action
16-

Partial or Excessive Action

Another Dimension (Transition into a New Dimension)
17-

Another Dimension (Transition into a New Dimension)

Mechanical Vibration
18-

Mechanical Vibration

Periodic Action
19-

Periodic Action

Continuity of Useful Action
20-

Continuity of Useful Action

Rushing Through (Skipping)
21-

Rushing Through (Skipping)

Blessing in Disguise (Turning Harm into Good)
22-

Blessing in Disguise (Turning Harm into Good)

Feedback
23-

Feedback

Intermediary
24-

Intermediary

Self-Service
25-

Self-Service

Copying
26-

Copying

Cheap Short-Living Objects
27-

Cheap Short-Living Objects

Replace Mechanical System (Mechanics Substitution)
28-

Replace Mechanical System (Mechanics Substitution)

Pneumatics and Hydraulics
29-

Pneumatics and Hydraulics

Flexible Membranes / Thin Films
30-

Flexible Membranes / Thin Films

Porous Materials
31-

Porous Materials

Colour Change
32-

Colour Change

Homogeneity
33-

Homogeneity

Discarding and Recovering
34-

Discarding and Recovering

Parameter Change
35-

Parameter Change

Phase Transition
36-

Phase Transition

Thermal Expansion
37-

Thermal Expansion

Accelerated Oxidation (Strong Oxidants)
38-

Accelerated Oxidation (Strong Oxidants)

Inert Environment
39-

Inert Environment

Composite Materials
40-

Composite Materials

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