So do not assume/state that he is trying to kicking you out from

unless he actually did. 

Frist, you should make sure what is the conrporate culture in this matter.At the meantime, Keep evidence for all the work you have done.These work should support your ownership of the projects. It sounds to me, you are the owner for this project.

If you have already mentioned this to him, then he needs to pay atteion on this. If not, in your email, you can say,

John,

Page xxx through page xxx is for Project A. I have updated the owner name for these pages. Let me know if you have any questions. 

Thanks!

ydcma

Keep it simple, clear and professional.