Seems wild to me they would be still suing to protect that patent in 2026 (or 'recently') – cheap Primark clones seemed to be the standard footwear of (female) teens & pre-teens in the 00s. (And they absolutely called them 'UGGs'.) That ship has long since sailed.
Fashion trends tend to be roughly on a 20 year cycle. Uggs are back in fashion with GenZ
https://www.elle.com/uk/fashion/what-to-wear/a69924640/how-t...
https://www.vogue.co.uk/article/how-to-style-ugg-boots