Archive
WIND ENERGY. Latest published applications 2017-2019. Bearing and housing structures
Summary
Over the past decade the global non-hydro renewables capacity has increased substantially, with wind energy leading the way by market share and growth. To ensure the success and effectiveness of wind power, continuous development of innovative and improvement of existing technologies are necessary. Crucial to this is the economic efficiency and reliability of bearing and housing components of wind turbines, an area that has received a great deal of attention in general. Since the trend is toward larger wind turbines, their design must be optimized to improve rigidity of foundation and housing, not least because of the difficulties associated with access for repair and maintenance. Beyond that, important aspects that engineers in the field are working on are prevention of deformation and galvanic corrosion of structural elements of a wind turbine, lubrication of rolling bearings, maintaining optimal aerodynamic efficiency. This bulletin introduces patent applications in this area, providing insights into the latest engineering trends and technological developments.
The proposed bulletin is dedicated to bearing and housing structures of wind energy systems and includes patent applications published in 2017-2019. Research methodology is available on the Advanced Energy Technologies website. The patent bulletin includes 1128 patent documents. The applications were registered in 28 patent offices around the world. 353 applicants from 26 countries participated in the development of the inventions. 397 subgroups of the International Patent Classification were encountered in the patent documents.
Key Highlights
The bulletin provides general statistical figures, including the overall distribution of patent documents by years, by patent offices and by applicant countries, applicant-related data (residents and non-residents), data on the most frequently mentioned International Patent Classification divisions (sections, classes, subclasses, groups, and subgroups). The most popular patent offices among the applicants were: CNIPA (CN), EPO, USPTO (US), WIPO, JPO (JP), INPI (BR).
For each of the patent documents selected for the examination in the present bulletin the characteristics of unified indicators were preliminary defined, they include: technical problems, types of inventive solutions employed, belonging to one or other technological segment. This allows the internal content for each of the indicators in the aggregate array of documents to be vizualized, for instance, to define the sequence and proportional correlation of technical problems the inventive solutions disclosed in the texts aim to solve. A list of the top 10 groups consisting of patent documents with identical unified indicators contains ID numbers and applicant names of respective documents; the groups are sorted by the number of patent documents.
A list of the top 10 applicants by the number of patent documents includes Wobben Properties GmbH (DE), Vestas Wind Systems A/S (DK), Beijing Goldwind Science & Creation Windpower Equipment Co Ltd (CN), General Electric (US), University of Maine (US), Siemens AG (DE), DLUT Dalian University of Technology (CN), Senvion Deutschland GmbH (DE), Siemens Gamesa Renewable Energy A/S (DK), and Wind Tower Technologies, LLC (US). Data representing the share in the established intellectual property market, distribution applications by problems, IPC sections, patent offices and technology indicators is provided in the form of tables and diagrams for them.
The top prominent documents section includes three lists of the top 10 patent applications having the highest bibliographical rating, the largest number of IPC sections, and those not being a part of patent family.
A list of all of the documents reviewed, arranged by the top 10 groups of patent documents with identical unified indicators and by patent offices with the indication of the ID numbers of the registered patent applications is provided in the conclusive part of the bulletin.
Who needs this bulletin?
The data provided in the proposed bulletin is a timely reflection of the transformations that take place in the intellectual property sector of the industrial direction concerned. Thoroughly edited selection of patent documents can become a good complement to your library of available technical solutions. The bulletin is targeted at inventors, engineers, researchers, managers and business administrators involved in the development of wind energy production technologies.
