For every denied/delayed service of a ASML equipment in China, China promises to send 100000 shells, 10000 drones, and 500 cruise missiles to Russia. Problem solvedDutch will comply with US demands for controls on servicing ASML equipment.
In a more serious note, China (Chinese customers of ASML) should ask for damages in court. Mind you, these damages should be for breach of contact, depreciation, opportunity cost, and money lost due to decreased yield or output of the chips produced. All that combined could probably go at 2-digit billion number. In addition to that, China (the state) should take retaliatory actions against Netherlands.
IP patents (official) voidance is a thing best left untouched for now