| | | Among the technical fields (according to the definition of the International Patent Classification) in which the number of applications filed in 2009 exceeded 4,000, the following has experienced rapid changes compared to 2008:
The number of applications in Class A01 (Agriculture; Forestry; Animal husbandry; Fishery) was 5,868, a 24.7% increase.
The number of applications in Class B23 (Machine tools) was 4,143, a 19.8% increase.
The number of applications in Class H02 (Generation, conversion, or distribution of electric power) was 7,433, a 17.0% increase.
The number of applications in Class G01 (Measuring; Testing) was 15,721, a 9.4% increase.
The number of applications in Class H04 (Electric communication technique) was 35,324, a 4.8% increase.
Utility models
Among the technical fields (according to the definition of the International Patent Classification) in which the number of applications filed in 2009 exceeded 5,000, the following has experienced rapid changes compared to 2008:
The number of applications in Class H02 (Generation, conversion, or distribution of electric power) was 10,448, a 50.7% increase.
The number of applications in Class B23 (Machine tools) was 7,008, a 44.0% increase.
The number of applications in Class G01 (Measuring; Testing) was 13,717, a 29.6% increase.
The number of applications in Class F21 (Lighting) was 9,568, a 29.3% increase.
The number of applications in Class H01 (Basic electric elements) was 18,549, a 25.2% increase.
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