RSS app: How to get approval for App Store?

I submitted a RSS reader app, but it just got rejected from the App Store, with this cited:

8.5: Apps may not use protected third party material such as trademarks, copyrights, patents or violate 3rd party terms of use. Authorization to use such material must be provided upon request

I'm wondering how all of the other many many RSS reader apps got approved, so that I can figure out what to do to get mine approved too.

Would greatly appreciate any help at all, thanks!!