CompanyIP owns a mobile app.
CompanyL is the exclusive licensor of the app and the company who enters into the agreement with Apple and the company whose name will appear in the App Store.
What should the copyright notice look like? I'm inclined to demphasize CompanyIP by going with something like
Copyright 2018. All rights reserved. Exclusive Licensor: CompanyL
But maybe something more appropriate would be
Copyright 2018 CompanyIP. All rights reserved. Exclusive Licensor: CompanyL
I don't think I can say
Copyright 2018 CompanyL. All rights reserved.
or can I?