For a discussion of the process see Stigler's law of eponymy.
From the en.wikipedia.org
We'd be living through an eponymy epidemic.
From the guardian.co.uk
He is also known for Stigler's law of eponymy.
From the en.wikipedia.org
More examples
The derivation of a general name from that of a famous person
An eponym is the name of a person, whether real or fictitious, after which a particular place, tribe, era, discovery, or other item is named or thought to be named. One who is referred to as eponymous is someone who gives his or her name to something, e.g. ...
The introduction of words into a language that are derived from the names of people or places.
[lexicology] The process of using a proper noun (usually a personal name) to form a new lexeme. It is common with adjectives and, in English with verbs as well, though some examples are to be found in German also. ...