[m4rc1e]

Maybe not a small open source project but I'd be careful.

https://nypost.com/2017/05/20/paypal-sues-pandora-over-simil...

http://designtaxi.com/news/361608/Starbucks-Sues-Bangkok-Cof...

https://www.designweek.co.uk/issues/15-21-january-2018/formu...

https://www.cbsnews.com/news/nike-sues-over-copied-air-jorda...