Research on patent portfolio design by Using of TRIZ Method

By integrating patent portfolio design ideas and TRIZ innovative approaches, a patent portfolio design model is proposed in this paper, which is based on the enterprise’s core technology. Basing on this model, the TRIZ based portfolio design process is developed via matching the TRIZ innovative methods and the types of patent portfolio and constructing patent portfolios using homologous TRIZ innovative methods. Taking TRIZ as the basic theory and synthesizing innovative methodologies, patent jurisprudence, and management, interdisciplinary research of collaborative innovative design is conducted.


Introduction
Patent portfolio is strategic patent collection, which will consolidate the patent owner's patent competitive advantage through combination of patents that are obvious differences and closely related.Patent portfolio design is the innovative design behavior of resources allocation, technology excavation and patent portfolio, which is patent-portfolio formation oriented.
Portfolio design ideas originate from economic management field.In 1952, Ma Horowitz (Markowitz) [1] an American economist, firstly proposed the portfolio management theory.In early 1990s, Brockhof [2] introduced this theory to the field of corporate patent strategy in his pioneering patent portfolio model.
Current researches on patent portfolio mostly focus on the area of management.Sccot [3] provides a mechanism for patent portfolio analysis and decisionmaking to help companies effectively implement the developing strategy of the R & D patent and enhance their research and development capabilities.In Ziedonis' research [4], companies' core technology was found by searching the scale and number of the best patent portfolios.Then the peripheral technology system around the core technology system was built to develop the patent portfolios in the field of core technology.
Grindley [5] studied the combination of patent licensing and cross-licensing and hold the view that the patent portfolio model is helpful for the choice of internal and external R & D. Kang Yuhang [6] take the multi-scaling MDS as a patent portfolio analysis tool to demonstrates the combination relations between patent data item sets in the form of visualization for business analysis.In this paper, various problem solving and analyzing tools are applied in patent portfolio design processes, such as patent analysis, patent excavation, patent applications and ultimately the patent portfolio.

2.2.1.3The construction of patent analysis tree.
By retrieving the target technology, and identify the most relevant patents, that the important goal of patents, and then be expanded around the patent search, collect important patents that already exist in the prior technology combination from the four directions, build important patent parse tree, as shown in Fig. 3  Fourth, combine the functional elements according to patent infringement law, develop a non-infringing technical proposal, and then patent design is to be achieved.

2.2.3Patented mining design based on TRIZ.
Using different methods in TRIZ, more patents can be excavated, and these will improve autologous competitiveness.And the design can be divided into the following situations.They can not only protect core technical solution powerfully, but also determine the competitive status of enterprise.This method can mining patent existing industrial chain cycle, according to law of demand evolution of TRIZ tools.

Evaluation the value of patents and patent applications.
Patent application as the one of the most important aspects of the innovation for the protection of intellectual property, is very important in the design of enterprise patent portfolio, the purpose of the patent portfolio design is obtained a wide scope of protection after an application for a patent for innovative solutions,

Fig. 1 Figure 2 :
Fig.1 Patent portfolio design models based on the core technologies in enterprises , be important in the analysis tree Patent No. marked as inspired subsequent research and reference, to avoid infringement of the right combination of design, and the opportunity for each mining technology under patent portfolio.

Fig. 3
Fig.3 Patent tree assess the value of patents and patent applications involves two main steps: The first is based on the TRIZ innovation level of innovation to sort and classify, and give the corresponding intellectual property protection strategy; The second is to control patent analysis tree, feasibility evaluation of innovative solutions to avoid stepping on other people's patents mines and build their own patent portfolio.protection of the process, building a reasonable scope of protection of the patent portfolio let the enterprise the core technology and key technology of a relatively wider scope of protection, the protection of a relatively longer time in order to ensure the effectiveness of innovations.The innovative design in the beginning, to import the patent portfolio theory, can reduce the blindness of enterprise intellectual property protection, to prevent a single patent protection range and the emergence of unreasonable patent portfolio, to win intellectual competition.

Table 1 .
The type of portfolio design model