Exhibit 21

 

ADVANCED POWER TECHNOLGOY INC.

Subsidiaries of the Registrant

December 31, 2005

 

Entity

 

State/Country of
Incorporation

 

 

 

Advanced Power Technology Europe SAS

 

France

Advanced Power Technology RF, Inc.

 

Delaware

Advanced Power Technology RF Pennsylvania, Inc.

 

Delaware

Advanced Power Technology Colorado, Inc.

 

Colorado