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Abstract Spent green tea extract (SGTE) represents an underutilised post-consumption bioresource for the sustainable synthesis of functional nanomaterials. In this study, copper oxide nanoparticles (CuO NPs) were synthesised via a green route using SGTE as a dual reducing and stabilising agent, and the effect of extract dosage (0.02–0.05 g/mL) on structural characteristics, bioactivity, and preliminary mango preservation performance was systematically investigated.
In last year’s Inside China’s IP Market: A Guide 2025, we discussed the basics of how obvious error in patent claims can be addressed during invalidation proceedings in China. Fast forward a year, and the conversation is far from over. With a fresh set of recent cases in hand, we return to the same topic to take a closer look at how the standards for reviewing obvious error are being tested, and possibly also redrawn, in practice.
When drafting a patent, it is not uncommon for slip-ups like typos, grammatical hiccups or translation mishaps to sneak in. Although they seem trivial, errors like these can alter the patent’s scope of protection. The application process provides many chances to tidy up such obvious mistakes. But what happens once a patent has been granted? Can the patent holder still make corrections?
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