Everyone can conduct their own petty patent research. As in all search engines the correct entry of search terms is also important here in order to register all information. There are free providers of databases containing patient information on the Internet. The Patent and License Service would be happy to provide you with advice.
For evaluation of inventions the Patent and License Service also conducts patent research as well as literature and market research to assess patentability and the possible scope of protection.
There are also researchers who only deal with this subject, and special information and research centers as providers of paid professional research with technology evaluation and recommendation of a property right strategy through market analysis.