Industrial, Medical Systems, and Aerospace and Defence. To strengthen and grow these division, the company proceeded with multiple acquisitions throughout the late 1980s and 1990s. In 1987, Smiths Industries purchased Lear Siegler Holdings Corp, an American avionics specialist; during 1994, Deltec, an American medical devices business, was also acquired by the firm. 21st century On 30 November 2000, the company's name was changed to Smiths Group plc. On 4 December 2000, it was announced that Smiths had completed a merger with TI Group, which held interests in aerospace, industrial seals and automotive parts. During the following year, Smiths Group transferred its newly acquired automotive business into a separate corporate entity, creating TI Automotive, ahead of plans to dispose of it. In July 2002, Smiths Group established a fourth division, Smiths Detection, which specialised in producing sensors and other equipment for the detection of weapons, explosives, contraband, and various hazardous substances. At the start of the 2000s, Smith's aerospace subsidiary, Smiths Aerospace, was a growing sector of the group; it supplied both military and civilian aerospace markets, having deliberately aimed for a 50/50 split between the two sectors. By 2002, roughly half of the division's revenue was reportedly being sourced from the North American market. Historically, Smiths Group was positioned as a first-tier aerospace supplier, frequently seeking out relevant acquisition opportunities to further its presence in the field. In October 2004, Smiths Aerospace purchased Integrated Aerospace, an American equipment supplier. In early 2007, GE Aviation, a division of American conglomerate General Electric, announced that it was acquiring Smiths Aerospace for US$4.8 billion. Smiths Group stated that it chose to sell its aerospace division, which was profitable at the time, in order to invest in other areas of the business. This transference of ownership required approval from anti-trust regulators in both Europe and the US. In September 2011, Smiths Group acquired the American-based power technology enterprise, Power Holdings Inc., for £145 million. On 21 April 2016, it was announced that Smiths Group was in the process of acquiring Morpho Detection LLC, a US-based subsidiary of Safran; it was integrated into the Smiths Detection division. During the 2010s, Smiths Group substantially ramped up investment in its research and development programmes. As a part of these efforts, it has established a Digital Forge in California. By 2018, the company was reportedly deriving 15 per cent of its income from its new product development efforts;