Engineering Revolution Siemens Medical Two years post-launch, Siemens MR became #1 in the global MRI market and Tim is widely regarded as the industry leader in technology. Of the three new MRI systems launched with Tim technology, all have increased market share for Siemens in the range of 15 – 18%. Within Siemens Medical itself, the Tim launch has become a “best practice” for how to introduce a new product to market.