The patent application situation related to ammonium metatungstate shows a certain degree of activity and diversity. The following is a clear summary of the related patent application situation:
Application number and activity:
According to statistics, several organizations and individuals have submitted patent applications related to ammonium metatungstate. For example, Central South University, as one of the patent applicants, owns a number of invention patents and utility model patents related to ammonium metatungstate preparation methods and systems. These patent applications cover a wide range of aspects from raw material treatment, preparation methods to product application, showing the activity and breadth of technological innovation in the field of ammonium metatungstate.
Main Applicant Institutions and Inventors
Central South University (CSU) is one of the important institutions in the field of Ammonium Metatungstate patent application, and the patents it applied for involve different preparation methods and systems. For example, Liu Jiucheng et al. invented a method of preparing high-purity ammonium metatungstate from ammonium paratungstate using membrane technology, which has the advantages of low cost and high product quality. Jiangxi Tonggu Nonferrous Metallurgical & Chemical Co., Ltd. also submitted a utility model patent application related to ammonium metatungstate, which is mainly related to the preparation system of ammonium metatungstate for denitrification catalyst.
Main content of the patent application
The content of the patent application mainly involves the preparation method, preparation system and application of ammonium metatungstate. For example, some patents introduce the preparation of ammonium metatungstate by using various methods such as membrane technology, solvent extraction method, ion exchange method, etc. Each of these methods has its own characteristics, aiming at improving the quality of the product, reducing the production cost or simplifying the preparation process.
There are also some patents focusing on the application fields of ammonium metatungstate, such as as raw material for denitrification catalyst.
Legal Status and Examination
Some patent applications related to ammonium metatungstate have been authorized, such as the utility model patent of Jiangxi Tonggu Nonferrous Metallurgical Chemical Co. While some other patent applications are in the stage of substantive examination or have been rejected.
The legal status of patents reflects the technical value and market prospect of patent applications, and also provides important reference information for relevant enterprises and research institutions.
To summarize, the patent application situation related to ammonium metatungstate shows a certain degree of activity and diversity, covering a wide range of aspects from raw material treatment, preparation method to product application. The application and authorization of these patents not only promote the technological innovation and development in the field of ammonium metatungstate, but also provide important technological support and market opportunities for relevant enterprises and research institutions.
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