Exhibit 16.1

                           [DOEREN MAYHEW LETTERHEAD]



                                 March 31, 2003




Securities and Exchange Commission
450 Fifth Street, N. W.
Washington, D.C. 20549

RE:      Productivity Technologies Corporation:

     We have read the statements  that we understand  Productivity  Technologies
Corporation  will  include  under  Item 4 of the Form 8-K  report  it will  file
regarding  the recent  change of auditors.  We agree with such  statements  made
regarding our Firm. We have no basis to agree or disagree with other  statements
made under Item 4.

Very truly yours,

DOEREN MAYHEW

Benedict P Rybicki
Director


cc:         Office of the Chief Accountant --
            SECPS Letter File
            Mail Stop 9-5
            Securities and Exchange Commission
            450 Fifth Street, N. W.
            Washington, D.C. 20549