At present, the world’s leading automotive enterprises in the field of new energy technologies has unleashed a fierce contest. In this competition, for the lithium iron phosphate (LiFePO4) battery level of the patent battle heated up. For example, the Texas State University and its commercial mandate Hydro Quebec, Canada, accused the United States battery manufacturers Gao Bo infringement lawsuit energy companies has now stalled, and the U.S. General Motors in 2010 to market electric car Volt, is used by his company developed a high lithium iron phosphate batteries. If the high Bo lost, GM Volt will also be caught in infringement disputes. Lithium iron phosphate batteries are also a number of patent litigation to China’s automobile industry development has brought a lot of uncertainty. For this reason, this paper lithium iron phosphate batteries to analyze patent applications in China for the trade on the information.
1, the patent analysis of the situation
By the State Intellectual Property Office granted the patent SSIPEX full text database to retrieve the data, the current open lithium iron phosphate batteries on the number of patent applications, a total of 203.
Since 2003, China began on lithium iron phosphate batteries patent application, which is the world’s first lithium iron phosphate hp 367759-001 battery,hp f2024a battery patent application began in 1997, can be seen, China’s involvement in lithium iron phosphate battery technology start – relatively late. However, presented a rapidly increasing trend of patent applications, (applications for the 2008 decline was mainly due to the year part of the patent application is still in closed state). Patent applications faster and the overall low number of patents, which is China’s iron phosphate lithium battery layout of the basic characteristics.
In the patent applicant the top 10 rankings, BYD Company Limited to 22 patent applications, the top spot, came in the first 10 applicants Shanghai Institute of Micro-system is only three, or even a natural person before the applicant into the among the 10. Lithium iron phosphate hp f2024b battery,hp f4486b battery technology in the field of domestic patent applicants scattered, mostly only 1-3 patents, long-term professional production of batteries BYD Company Limited is not big in the field of patents. Be concerned to grasp the core technology of several foreign companies did not appear in the first 10 Ranking. Chinese iron phosphate lithium battery technology, foreign applicants only Japan Sanyo Electric Co., Ltd. (2 has authorized), Hodges Co., Ltd. Yuasa (1 has been authorized).
In order to reflect China’s current lithium iron phosphate battery technology patented composition, this paper analysis of IPC classification Ranking. Figure 3 for the IPC large groups classified by the top 10 Ranking diagram, the top three words of the IPC, respectively C01B25 (phosphorus and their compounds), H01M4 (battery electrode), H01M10 (secondary battery and its manufacturing ), 90% of the lithium iron phosphate battery application for a patent belongs to the three categories. Thus, Taiwan’s proprietary technology constitutes a major focus on lithium iron phosphate material, materials, preparation methods, the battery structure, related to the hp f4809a battery,hp f4812a battery control in combination of a relatively small number of patent applications, and only H02J7 (used for battery charging or to the polarization or used by the battery pack power to the load of the device) classification involved in the three patents. This shows that China’s lithium iron phosphate batteries involved in the specific application of the technical aspects of the patent application is relatively small.
2, Enlightenment and Suggestions
Technology development process made clear that no one major technology and extensive application of the generation process, is bound to accompany the large number of patents produced clan. With the intellectual property rights in commercial applications of new technologies highlight the importance of the major companies in major technical areas of intellectual property rights territories against each other, in order to grasp the fierce competition in the business opportunities. Lithium iron phosphate hp hstnn-lb31 battery,hp pavilion zv6000 battery technology in the field, our late start, did not understand the basic core of patents, this paper, the status quo has the following recommendations:
1. To speed up the patent application lithium iron phosphate
Lithium iron phosphate hp pb992a battery,hp pb994a battery technology research time is not long, in the conductivity, the energy density, power density, tap density, materials, stability has a great room for improvement. Therefore, Chinese enterprises should increase R & D investment to accelerate the domestic patent applications, possess certain technological advantages of the enterprises overall layout, and key technical point in the foreign patent applications. Even if the future is to master the core of the foreign patent infringement complaint when the big companies, which have numerous domestic enterprises can patent cross-license negotiations, litigation, etc. for their own anti-seize the initiative. Further, with the core of the patent may also be possible in the future formation of lithium iron phosphate batteries take place in the patent pool.
2. Around the foreign company’s core patent Layout
From Figure 2 we can see that foreign enterprises in China before 2008 did not patent the layout (except for Japan, 2). China is a hp pb995a battery,hp pp2182d battery-manufacturing country, with the lithium iron phosphate battery technology development, China’s future is likely to be iron phosphate lithium battery manufacturing country. When the foreign master core technologies of several companies aware of their patents in China, the layout of the deficiencies will certainly increase the intensity of patent applications in China. According to the novelty of patent examination and the relevant priority provisions in the foreign patent application, after a certain period (up to 32 months), the foreign patent application in China can not be re-apply. Therefore, if foreign companies want to carry out its core patents in China, the layout, only the original core patented technology to improve a little, and then the application in China. Chinese enterprises can be the first to step in, targeted to study abroad, the company’s core patented technology, its slightly improved (as can be creative patent examination as a standard), the patent application made in China. Through this targeted distribution, domestic enterprises can reduce their lithium iron phosphate batteries in China’s market potential threat.
3. Strengthening the structural design of the battery, the battery combination control studies
We can see from Figure 3, the domestic battery manufacturers, or patent applications filed in the Institute focused on lithium iron phosphate hp pp2182l battery,hp pavilion dv1000 battery lithium iron phosphate materials, preparation methods, structural design of the battery, battery control, slightly less than combined. Lithium iron phosphate batteries multi-domain applications may generate new technical problems, for example, when lithium iron phosphate batteries as the car battery power when the structural design of the battery, battery control, there will be some combination of special technical problems, and even brought many are not limited to batteries (such as automotive power systems) the periphery of technological innovations. Domestic enterprises in iron phosphate lithium battery to increase R & D investment, we must also note that patent applications related to the layout, so that domestic enterprises in iron phosphate lithium battery materials, preparation methods, application techniques to master a full range of intellectual property rights, etc. .