2011 Acquisitions - During the year ended December 31, 2011, Roper completed three business combinations. The results of operations of the acquired companies have been included in Roper's consolidated results since the date of each acquisition. Supplemental pro forma information has not been provided as the acquisitions did not have a material impact on Roper's consolidated results of operations individually or in aggregate.

The aggregate purchase price of 2011 acquisitions totaled $234 million of cash. The Company recorded $91 million in other identifiable intangibles and $149 million in goodwill in connection with these acquisitions. The majority of the goodwill is not expected to be deductible for tax purposes. The Company expensed transaction costs of $2.1 million related to these acquisitions, as incurred.

On June 3, 2011, Roper acquired 100% of the shares of NDI Holding Corp. ("Northern Digital"), a provider of 3-D measurement technology for medical applications in computer-assisted surgery and computer-assisted therapy. Roper acquired Northern Digital as an addition to its medical platform, and is reported in the Medical and Scientific Imaging segment.

On September 26, 2011, Roper acquired 100% of the shares of United Controls Group, Inc. ("UCG"), a manufacturer of control systems in the oil and gas industry. UCG was acquired as an addition to our existing process control systems businesses, and is reported in the Energy Systems and Controls segment.

On December 1, 2011, Roper acquired 100% of the shares of Trinity Integrated Systems Ltd. ("Trinity"), a specialist provider of requirements capture, safety lifecycle management and engineering software tools, and safety and control system solutions to the oil and gas, industrial process and control markets. Trinity was acquired as an addition to our existing process control systems businesses, and is reported in the Energy Systems and Controls segment.

Of the $91 million of acquired intangible assets acquired in 2011, $3 million was assigned to trade names that are not subject to amortization. The remaining $88 million of acquired intangible assets have a weighted-average useful life of approximately 11 years. The intangible assets that make up that amount include customer relationships of $70 million (12 year weighted-average useful life), and unpatented technology of $18 million (8 year weighted-average useful life).

2010 Acquisitions - During the year ended December 31, 2010, Roper completed two business combinations. The results of operations of the acquired companies have been included in Roper's consolidated results since the date of each acquisition. Supplemental pro forma information has not been provided as the acquisitions did not have a material impact on Roper's consolidated results of operations individually or in aggregate.

The aggregate purchase price of 2010 acquisitions totaled $538 million of cash. The Company recorded $320 million in other identifiable intangibles and $345 million in goodwill, $115 million of which was recorded due to a deferred tax liability related to intangible assets, in connection with these acquisitions. The majority of the goodwill is not expected to be deductible for tax purposes. The Company expensed transaction costs of $2.1 million related to these acquisitions.

iTrade Acquisition - The largest of the 2010 acquisitions was the purchase of all outstanding shares of iTradeNetwork, Inc. on July 27, 2010. iTrade, whose operations are reported in the RF Technology segment, is a global provider of software as a service ("SaaS")-based trading network and business intelligence solutions primarily to the perishable food market. iTrade's principal facilities are located in Pleasanton, California. The aggregate gross purchase price was $523 million of cash.

The Company acquired iTrade in order to complement and expand existing software services at other Roper businesses. The following table (in thousands) summarizes the fair values of the assets acquired and liabilities assumed at the date of acquisition.

	July 27, 2010
Current assets	$	14,174
Other assets		2,998
Intangible assets		313,600
Goodwill		335,971
Total assets acquired		666,743
Current liabilities		(15,301	)
Other liabilities		(128,841	)
Net assets acquired	$	522,601

On February 22, 2010, Roper purchased the assets of Heartscape, Inc, including a technology with the capability to improve the speed and accuracy of detecting heart attacks. The operations of Heartscape are reported in the Medical & Scientific Imaging segment.

Of the $320 million of acquired intangible assets acquired in 2010, $35 million was assigned to trade names that are not subject to amortization. The remaining $285 million of acquired intangible assets have a weighted-average useful life of approximately 14 years. The intangible assets that make up that amount include customer relationships of $234 million (15 year weighted-average useful life) and unpatented technology of $51 million (8 year weighted-average useful life).

2009 Acquisitions - During the year ended December 31, 2009, Roper completed two business combinations. The results of operations of the acquired companies have been included in Roper's consolidated results since the date of each acquisition. Supplemental pro forma information has not been provided as the acquisitions did not have a material impact on Roper's consolidated results of operations individually or in aggregate.

The aggregate purchase price of 2009 acquisitions totaled $353 million. Roper recorded approximately $246 million in goodwill and $126 million in other identifiable intangibles in connection with these acquisitions. The majority of the goodwill is not expected to be deductible for tax purposes. The Company recorded $2.2 million in transaction costs related to these acquisitions.

On October 30, 2009, Roper purchased the assets of United Toll Systems, LLC, which provides software and in-lane hardware systems for toll and traffic markets. The operations of UTS are reported in the RF Technology segment.

On December 3, 2009, Roper purchased Verathon, Inc., a leading global provider of proprietary medical devices and services, in order to expand our medical product lines. The results of Verathon are reported in the Medical & Scientific Imaging segment.

Of the $126 million of acquired intangible assets, $27 million was assigned to trade names that are not subject to amortization. The remaining $99 million of acquired intangible assets have a weighted-average useful life of approximately 10 years. The intangible assets that make up that amount include customer relationships of $46 million (14 year weighted-average useful life), unpatented technology of $53 million (7 year weighted-average useful life) and protective rights of $0.5 million (3 year weighted-average useful life).