Looking it up from some different sources I could find the following listed as summaries of the patents:

Multi-axis motion systems
Heated bed management
Enclosed chamber thermal control
Filament flow monitoring
Error detection software

Those first two are basically every printer sold for the last 6 or 7 years? Seems weird they let Creality (and everyone else) do their thing for years without issue and just decided to go after Bambu. I am not a Bambu fan by any stretch, but still doesn't seem to add up.