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PATENT NO. : 6,878,770 B2 

DATED : April 12, 2005 

INVENTOR(S) : Christian Herzig et al. 

## UNITED STATES PATENT AND TRADEMARK OFFICE 

## CERTIFICATE OF CORRECTION 

Page 1 of 1 

It is certified that error appears in the above-identified patent and that said Letters Patent is hereby corrected as shown below: 

Column 21, 

Line 25, after "formula" insert 

<img src='content_image/939470.jpg'>

<img src='content_image/939471.jpg'>

Signed and Sealed this 

Fourth Day of October, 2005 

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