Note 5 - Intangible Assets

6 Months Ended

Jun. 30, 2011

Intangible Assets Disclosure [Text Block]

Note 5.  Intangible Assets

Identifiable intangible assets consisted of the following as of June 30, 2011 and December 31, 2010:

	June 30, 2011			December 31, 2010
Antimicrobial technology	$	222,187		$	222,187
Licensing agreements		61,391			61,391
Patents, pending and approved		834,301			834,301
Total intangible assets		1,117,879			1,117,879
Less accumulated amortization		(937,696	)		(903,811	)
Intangible assets, net	$	180,183		$	214,068

Amortization expense for intangible assets during the three months ended June 30, 2011 and 2010 was $16,942 and $16,943, respectively, and was $33,885 during each of the six months ended June 30, 2011 and 2010, respectively.