I don’t know about air travel. For comparison, Li batteries are about 200-300 Wh/kg, with solid state reading 3-4x that.
Jetfuel is 11000 Wh/kg. Hydrogen is 39000 Wh/kg.
By volume they might have an advantage but planes tend to care more about weight
48/16 here. Something like that with almost 80 a month.
Despite their reputation for being quick, my opinion is that Nintendo does often take their time. Most of the things they take down do exist for months or years (and also follow the same format of a ROM hack that got a lot of attention so easy copy paste). My assumption is they’re just dotting their i’s and crossing their t’s and patent is just what they think they’ll have the best chance at winning.