I am thinking about using an open web-based design software called IDEA BUILDER by a company (80/20) to help me design a new product that would use extruded aluminum manufactured by them. However, I was reading their terms and conditions (yeah, I know! I actually read them) and it seems to me that 80/20 would actually own my design and not me (like adobe tried to do). Am I reading this right? From the terms and conditions in 80/20’s the website:

10 - Submitting Content: As a condition of submitting any Content or other materials to the Sites or Services, you agree:

(A) to grant to 80/20 a royalty free, perpetual, irrevocable, worldwide, nonexclusive, transferable, and sublicensable license to use, reproduce, copy, adapt, modify, merge, distribute, publicly display, create derivative works from, incorporate such Content into other works; grant to 80/20 all rights necessary to publish or refrain from publishing your name and address in connection with your Content; sublicense the Content through multiple tiers, and acknowledge that this license cannot be terminated by you once your Content is submitted to the Sites and Services;

Does this mean that my design will belong to them?