Thyssen themselves didn't actually buy US Elevator. It was their Canadian subsidiary Northern that actually bought them in 1994. The Northern design is based on US Elevator with only 2% difference. Northern sold a revised version of the US product until 1999. Northern continues to make their own product line, independent from the one based on thyssen's other predecessor, Miami Elevator, but now operates under the TK Elevator Canada branding (after ThyssenKrupp became TKE).

PS: This is no opinion. Northern is the best elevator company ever. It's the only brand of elevator I've never been stuck in and never had trouble with. The total number of Northern's I've used was over 132, not just 1 or 2. It's also the only brand of elevator I've never seen break down before.