She's not sweating it!

Kim Kardashian is being sued for $100 million by a man who claims he basically came up with the idea for her famous Lumee light phone cases, TMZ reports.

Hooshmand Harooni filed a suit against Kimmy K's company Kimsaprincess, Inc. and claimed in the documents that he obtained a patent for the product back in 2013, well before the reality star launched Lumee and jacked his invention.

He said he sold it to a company called Snaplight, but they haven't been able to come close to Lumee in sales because of the Keeping Up with the Kardashians star's fame and promotion. He thinks $100 million will cover his lost profits.

"The patent lawsuit filed by Snap Light has no merit and is just another attempted shakedown. Kim has done absolutely nothing wrong," Kardashian's camp told TMZ.

She's got the best lawyers in the biz, so this shouldn't be an issue.