Earlier quoted context omitted.
It looks like Magic Leap just closed on a new loan in August, not that they defaulted. This filing ensures that if they ever _do_ default, JPM has the rights it expects in the IP as collateral.
I'm not a lawyer, but my understanding that the effectively J.P. Morgan now owns the patents (unless a court somehow unwinds the deal) and why the assignment was registered with the USPTO. The patents are then being licensed back to Magic Leap. In this way if Magic Leap defaults, J.P. Mogan simply owns the I.P. like if you pawn something and default on the payback terms.
You can read more about patent security agreements here:
https://www.ipwatchdog.com/2012/06/21/getting-a-loan-with-yo...