A record 278,100 patents were filed last year, up 0.3 percent, the UN's World Intellectual Property Organization<\/a> said in its annual overview.
Asia's dominance continued, accounting for 54.7 percent of international patent applications, WIPO said.
China remains the top source of applications ahead of the United States and Japan under WIPO's Patent Cooperation Treaty (PCT), which simplifies obtaining patent protection in multiple countries.
\"The overall modest growth rate reflects the challenging economic conditions prevailing in 2022. Notwithstanding these conditions, firms continued to invest in innovation and intellectual property,\" WIPO said.
Firms from China filed 70,105 patent applications, followed by the United States (59,056), Japan (50,345), South Korea (22,012) and Germany (17,530).
France, Britain, Switzerland, Sweden and the Netherlands rounded out the top 10.
But notably sharp rises in the number of filings were registered in 12th-placed India (up 25.4 percent) and in South Korea (up 6.2 percent).
\"International IP filings largely held up in 2022,\" said WIPO chief Daren Tang.
\"Despite difficult economic conditions and a decline in risk finance, businesses continued to invest in innovation.\"
Chinese tech giant Huawei remains the top filer with 7,689 patent applications, ahead of South Korean rival Samsung<\/a> on 4,387, which jumped up to second place with a 44.3 percent increase in applications.
They were ahead of US firm Qualcomm<\/a> (3,855), Japan's Mitsubishi Electric (2,320) and Swedish telecom equipment maker Ericsson<\/a> (2,158).
Computer technology accounted for the largest share of applications at 10.4 percent, followed by digital communication, electrical machinery, medical technology and then measurement.
Of the top 10 technology fields, eight saw growth in 2022.
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