There's some double speak involved in this technology transfer, and it's anyone's guess where things will head in the end with respect to the US and China.
On the one hand side you've US companies who are saying that it's intolerable that technological transfers are occurring when they invest in China. And they've been complaining about it for a long time to Congress and to the White House. It kind of makes sense at the end of the day, because they're obligated to have a joint venture with a local when building a factory in China. What's to stop China from subsequently building their own national champion?
On the other hand side, that technology transfer is basically the only thing that is getting in the way of US companies outsourcing what remains of US industrial jobs in China. If their IP rights end up protected, as the Trump White House is currently seeking, then why shouldn't they outsource production over there?