<DOCUMENT>
<TYPE>EX-21.1
<SEQUENCE>8
<FILENAME>a2042380zex-21_1.txt
<DESCRIPTION>EXHIBIT 21.1
<TEXT>

<PAGE>

                                                          Exhibit 21.1


              SUBSIDIARIES OF MAXWELL TECHNOLOGIES, INC.

<TABLE>
<CAPTION>

ENTITY                                                       STATE/COUNTRY OF INCORPORATION
<S>                                                          <C>

Maxwell Technologies Systems Division, Inc.             California
PurePulse Technologies, Inc.                            Delaware
Maxwell Electronic Components Group, Inc.               California
I-Bus/Phoenix, Inc.                                     California
* MML Acquisition Corp.                                 Delaware
* I-Bus/Phoenix (UK) Ltd.                               United Kingdom
* I-Bus (UK) Ltd.                                       United Kingdom
* Calphobytax, Ltd.                                     United Kingdom
* Portwell UK, Ltd.                                     United Kingdom
* I-Bus Manufacturing Ltd.                              United Kingdom
* Graphic Vision, Ltd.                                  United Kingdom
* Tri-Map Ltd.                                          United Kingdom
* I-Bus/Phoenix France SA                               France
* I-Bus/Phoenix GmbH                                    Germany

* Indirect Subsidiary

</TABLE>
</TEXT>
</DOCUMENT>