Word that means "plagiarism" but only in relation to plagiarized ideas

Solution 1:

I don't believe there exists such a word, to describe someone who steals ideas, as it cannot be classified as a crime unlike plagiarism, which also functions as a verb.

I can think of only one expression: to take credit

Scenario: A tells B an idea on how to improve the company's productivity tenfold. Then B, behind A's back, goes to their boss and suggests the very same idea. The idea proves to be a success but it is B who takes the credit.

To steal: To present or use (someone else's words or ideas) as one's own.

To take the credit: to allow people to believe that one has done something praiseworthy, whether or not one has actually done it

I found this link about how "stealing" ideas in the business world can be perfectly legal but there are exceptions to the rule. http://yourbusiness.azcentral.com/legal-term-stealing-business-idea-12733.html

• Copyright Infringement
• Trademark Infringement
• Patent Infringement
• Tortious Interference

Solution 2:

A word that is used with some degree of specificity for this purpose is "crib."