I did advanced searches on the USPTO website and it seems that Coconut Cream (C-20) is the only one of Zills new creations to have a patent (current and in effect).
Can anyone else here confirm this?
I saw one FL nursery website that says Zill's Sweet Tart was patented, but could not independently verify this either.
Edit: The reason I ask is that I am trying to determine what we can legally propagate (i.e. create backup trees, scion trade) and CC is the only one that legally shows up as a no-go.
I also checked to see if Tim Thompson's new mango varieties were officially patented and came up with zero...I guess in process?
Thanks.