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ESPACENET/OPS patent families

In EPO web site there's a definition of patent families page and, relating to this definitions, in other pages of the site it's stated about ESPACENET equivalents that: Definition of the Espacenet ...
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What is the first filed country of patent CN 101361713 B?

Curcumin nano crystallization preparation and preparation method thereof CN101361713B
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Find patents by a specific patent attorney

Many (pharmaceutical) companies have their own IP department employing many patent attorneys. On espacenet, which search field allows me to look for patents issued by a specific patent attorney at a ...