1. Overview of Major Wireless Power Transfer Technologies 
1.1 Magnetic Induction 
1.2 Magnetic Resonance 
1.3 Radio Frequency 
2. Patent Mining of Wireless Power Technologies 
2.1 Patent Search Procedure 
2.1.1 Selecting a Patent Database 
2.1.2 Identifying Search Keywords 
2.1.3 Data Selection
2.1.4 Data Analysis
2.2 Results of Patent Mining 
2.2.1 Text Mining 
2.2.2 Data Mining 
2.2.3 Relative R&D Strength 
2.2.4 Technology Independence 
2.3 Results of Patent Index Analysis 
3. Tracking and Observing Highlights 
3.1 Application Aspect 
3.2 Industry Aspect 
3.3 Patent Aspect 
Appendix
Glossary of Terms 
List of Companies 

Figure 1  Example of a Wireless Charging Plate: Nokia DT-900 
Figure 2  Major Wireless Power Technologies 
Figure 3  Illustration of Magnetic Induction Wireless Power Technique 
Figure 4  Example of Magnetic Induction Wireless Power: LG Nexus 4 Wireless Charger 
Figure 5  Illustration of Magnetic Resonance Wireless Power Technique 
Figure 6  Example of Magnetic Resonance Wireless Power: WiT 2000
Figure 7  Illustration of Radio Frequency Wireless Power Technique 
Figure 8  Example of Radio Frequency Wireless Power (1): TX91501 
Figure 9  Example of Radio Frequency Wireless Power (2): NEST 
Figure 10  Patent Search Flow for Wireless Power Technologies 
Figure 11  Wireless Power Patents by Sector Share 
Figure 12  Wireless Power Patents by Field Share 
Figure 13  Wireless Power Transfer Application Markets 

Table 1  Pros and Cons of Various Wireless Power Transfer Technologies 
Table 2  Criteria for Patent Mining 
Table 3  Key Technology Types Identified By Text Mining 
Table 4  R&D Strength of the Top 30 Assignees in the Field of Wireless Power Technologies 
Table 5  Technology Independence of the Top 30 Assignees in the Field of Wireless Power Technologies 
Table 6  Top 10 Patents Related to Wireless Power 
Table 7  Matrix Analysis of 10 Most Important Patents Related to Wireless Power Technology 
Table 8  Major Vendors and Industry Standard Organizations in the Wireless Power Industry 
Table 9  Major Vendors in the Wireless Power Industry 
Table 10 Taiwanese Vendors' Wireless Power Patents in USPTO