IIRC US/BIS carved out exemptions for intangibles like SEP patent licenses. Entity list for controlled goods export/import. Regardless, US would also be stupid not to pay Huawei, PRC pays $4 for every $1 she receives for IP, ~30B deficit, most to US. PRC takes home more $$$ if US tries to lawfare it's way out of paying. But bigger stick is PRC entrenched in supply chains enough that Huawei (with PRC pressure) can sue OEMs (patent enforcement happens at device level)... all domestic PRC manufactures, foxconn, samsung, apple (really anyone that uses PRC supply chains at all) on chopping block, i.e. functionally global sales injunction against any 3/4/5g hardware that uses QC which has to use HW SEPs, which covers their entire portfolio... mobile, auto, iot, edge comptue... aka QC dead if it doesn't pay.

Big companies were sometimes getting sanction waivers. In energy, Exxon for example has been getting waivers to keep investing in Russian oil and gas since 2014. They got out in 2022 though, and the waivers stopped (I've no idea which ended first, the waivers or Exxon's interest in those projects).

With the current state of the U.S politics, nothing is sure.

They can just donate some crypto to one of the Trump kids to get it approved…