What are the recommended search engines for patent examiners?

According to MPEP 904.02(c), patent examiners are encouraged to use the following search engines for their research: Google: A widely-used general-purpose search engine Google Scholar: Specifically for academic and scientific literature Bing: Microsoft’s search engine, offering an alternative perspective DuckDuckGo: A privacy-focused search engine The MPEP states: “Examiners are encouraged to use the most effective…

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