Hi @trail_rat / Terry, no Thule still have their full patents. All our new aeroe products all have their own patents – although attaches to stays a lot simpler, more stable and easy to use system that we have designed, with real focus on off road /gravel bikepacking – carrying dry bags/tents/sleeping bags as opposed to traditional panniers. Other focus with this range was designing a solution that caters for shorter people with no room under saddle for gear, providing options for people if they like to carry their gear low, or higher depending on handling preferences, and for full dropper post use where our previous freeload rack had limitations. Cheers aeroe