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Note G - Intangible Assets
 12 Months Ended
Dec. 31, 2012
Intangible Assets Disclosure [Text Block]  
Intangible Assets Disclosure [Text Block]

NOTE G—INTANGIBLE ASSETS


Intangible assets consisted of the following as of December 31:


   

2012

   

2011

 
   

Gross

Carrying

Amount 

   

Accumulated

Amortization 

   

Net Carrying

Amount 

   

Gross

Carrying

Amount 

   

Accumulated

Amortization 

   

Net Carrying

Amount 

 
                                                 

Patents and patents pending

  $ 287,248     $ (91,337

)

  $ 195,911     $ 287,248     $ (80,068

)

  $ 207,180  
                                                 

Total

  $ 287,248     $ (91,337

)

  $ 195,911     $ 287,248     $ (80,068

)

  $ 207,180  

Aggregate amortization expense for the years ended December 31, 2012 and 2011, was $11,269 and $11,270 respectively. The estimated aggregate amortization expense of intangible assets for the years following December 31, 2012 is approximately $11,270 per year for 2013 through 2017, and $139,561 thereafter.