Analysis of patent technology status and trend of LED bulb lamp in China

LED bulb is the appearance of the shape of the bulb, people have the habit of spherical internal light source for a new generation of LED lighting, the traditional incandescent light bulbs, fluorescent bulbs compared with: energy saving and environmental protection, long service life, fast response speed, high luminous efficiency, strong controllability and other advantages, has widely used in household lighting and other fields. In recent years, China's rapid development of LED lighting technology, LED bulb lamp lighting as one of the most common, a substantial increase in the amount of patent application, as of December 31, 2014, involving the LED bulb open CNABS patent database in a total of 1787 patents, utility model patents, a total of 4456 pieces. The analysis of these patent data can reveal the current patent status and future development trend of LED bulb technology in China, and provide reference for related enterprises and individuals to carry out technical research and development and patent application.

1, LED ball bulb technology patent application status

In this paper, Chinese Patent Abstracts (CNABS) disclosed in the patent document based on 2014 (including 2014) statistics discloses LED bulb patent, the statistics focus on LED bulb structure and components, through the rational use of IPC classification and keyword retrieval method, the invention and the utility model relates to LED bulb technology patent first check, and then the noise, finally obtained a relatively accurate statistical sample, based on the in-depth analysis of the patent documents finalized.

1.1 patent applications over the years

The distribution of patent applications over the years, as shown in Figure 1, the volume of applications in the 2007 - 2013 year by year, a substantial increase, the reasons are the following:

With the continuous improvement of China's economic development level, the protection of intellectual property rights in the whole society gradually increased.

The Chinese government has implemented a series of industrial policies for green lighting industry, such as 2006, the Ministry of Construction promulgated the "11th Five-Year" city green lighting project plan "in 2007, many ministries jointly issued the" efficient lighting products to promote financial subsidies to fund management Interim Measures ", promulgated in 2011," "11th Five-Year" city of green lighting plan "etc..

You can see from Figure 1, the utility model patent application quantity is far greater than the invention patent, the main reason is the LED bulb technology is relatively low threshold, product replacement cycle is short, and the invention patent examination period ratio of the utility model patent, so the utility model patent applicants choose to apply more, and the applicant to obtain temporary protection. The technology, often in an application for a patent for invention and utility model applications.

The main applicant information is shown in Table 1, the applicant is mainly for domestic applicants, thus, the Chinese government to develop green lighting industry support, as well as enterprises in technological innovation has achieved remarkable results. However, the distribution of applicants in China is more dispersed, and more personal applications, this is because the LED bulb technology barriers are lower, the regional / enterprise development in the industry is more balanced.

For most of the lidaxin green lighting information of its Limited by Share Ltd, founded in 2000, headquartered in Xiamen, specializing in electronic energy-saving lamps, LED lamps, LED lighting, intelligent lighting system and green lighting product development, production and sales, with Xiamen, Zhangzhou, Sichuan three industrial base, ten holding subsidiaries, is the focus of national Torch Plan high-tech enterprises, national semiconductor lighting industry base backbone enterprises, leading enterprises in Fujian Province, the Ministry of commerce is recognized as a private foreign trade 500 strong enterprises, Chinese Light Industry Federation named Chinese light industry profitability and value of 100 enterprises.

Table 2 shows the IPC classification to the current main technology involves focusing LED bulb in lamp structure (F21S2/00), cooling technology (F21S29/00), (F21V19/00, F21V17/00) fixed assembly, circuit element layout (F21V23/00) light distribution and distribution (F21V3/00, F21V7/00, F21V5/00) on. This is because:

LED bulb as a conventional lighting fixtures, pay more attention to the overall performance of lamps.

LED chip on the high temperature requirements, high temperature will have a greater impact on the performance of LED.

LED bulb lamp as a conventional lighting fixtures, especially household lighting, fast and convenient installation, disassembly, assembly can greatly enhance the user's convenience in the maintenance, replacement.

In order to apply the LED light source to a variety of different lighting environments, it is necessary to adjust the light distribution characteristics.

1.2 LED ball bubble lamp invention patent application status

The utility model relates to LED bulb lamp technology, which is mainly applied in China, and the number of foreign applications is very small.

Therefore, it is easier to see the current situation of technology development for the analysis of the invention patent. The main source of patent application for the country / region is shown in figure 2.

China's enterprises and individuals in the LED bulb technology dominant position, the invention patent applications accounted for 78% of the total, followed by China, Taiwan, Japan and the United states.

However, the mainland of China, the applicant and the applicant in Taiwan Province, the rate of invention authorization is lower, lower than the overall rate of patent licensing in china.

After analysis, the main reason for the current LED bulb technology involved in the main innovation in the structure of the lamp, and the bubble