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PART-2. SMART ENERGY METERS– A DETAILED PATENT, PRODUCT & MARKET ANALYSIS

In part 1 of the report, the basic analysis of patenting trends in the field of smart energy meters was provided. It was seen that the patenting activity started at a slow pace around 1980 and began to increase exponentially since the mid-2000s. Patents originating from China outweighed all other countries as the origin of the technology. USA had the 2nd largest number of patents originating from it, but had only a little more than 1/3rd of the patent count as compared to China. It was also observed that among the top 5, 3 Asian countries featured prominently. They are China as already mentioned herein, South Korea and Japan. State Grid Corporation of China had the largest portfolio of patents. The technological focus of the patents tended to be in the measurement methods and devices, as would be expected in this technology.

In the 2nd part of this report, more detailed analysis with respect to various parameters is provided that gives greater insight into the development of this technology.


Figure 1. Plot of number of patents published over the years by the top assignees.



IPC Definition
G Physics
G01 Measuring; Testing
G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G05 CONTROLLING; REGULATING
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
G06 COMPUTING; CALCULATING; COUNTING
G06F ELECTRIC DIGITAL DATA PROCESSING
G06Q DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
G07 CHECKING-DEVICES
G07F COIN-FREED OR LIKE APPARATUS
G08 SIGNALLING
G08C TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
H ELECTRICITY
H02 GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
H04 ELECTRIC COMMUNICATION TECHNIQUE
H04B TRANSMISSION
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION

TABLE 1. Definitions of the most common IPC classes for patents in AMR and AMI technology

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