In 2015 , Perschke accused Shell Oil Company to have used his concept of the RedBall project in a global print ad campaign .
Perschke said that he views the resolution as favorable because it was based on terms that respect his intellectual property rights .
In 2015 , Perschke accused Shell Oil Company to have used Perschke 's concept of the RedBall project in a global print ad campaign .
Perschke said that he views the resolution as favorable because it was based on terms that respect his intellectual property rights .