Research and innovation in big data in the technology and communications sector has declined in the last year.

The most recent figures show that the number of big data related patent applications in the industry stood at 477 in the three months ending April – down from 1,172 over the same period in 2021.

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Figures for patent grants related to big data followed a similar pattern to filings – shrinking from 637 in the three months ending April 2021 to 192 in the same period in 2022.

The figures are compiled by GlobalData, who track patent filings and grants from official offices around the world. Using textual analysis, as well as official patent classifications, these patents are grouped into key thematic areas, and linked to key companies across various industries.

Big data is one of the key areas tracked by GlobalData. It has been identified as being a key disruptive force facing companies in the coming years, and is one of the areas that companies investing resources in now are expected to reap rewards from.

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The figures also provide an insight into the largest innovators in the sector.

Huawei Investment & Holding Co Ltd was the top big data innovator in the technology and communications sector in the latest quarter. The company, which has its headquarters in China, filed 61 big data related patents in the three months ending April. That was down from 133 over the same period in 2021.

It was followed by the United States based NVIDIA Corp with 46 big data patent applications, the United States based Intel Corp (44 applications), and China based Tencent Holdings Ltd (24 applications).

NVIDIA Corp has recently ramped up R&D in big data. It saw growth of 87% in related patent applications in the three months ending April compared to the same period in 2021 - the highest percentage growth out of all companies tracked with more than 10 quarterly patents in the technology and communications sector.