Exhibit 31.1


                                  CERTIFICATION


            Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002


I, Samuel N.  Seidman,  Chairman  and Chief  Executive  Officer of  Productivity
Technologies Corp., hereby certify that:


     1. I have  reviewed  this  quarterly  report on Form  10-Q of  Productivity
Technologies Corp.;


     2. Based on my knowledge, this report does not contain any untrue statement
of a  material  fact or omit to  state a  material  fact  necessary  to make the
statements made, in light of the circumstances  under which such statements were
made, not misleading with respect to the period covered by this report;


     3. Based on my knowledge,  the financial  statements,  and other  financial
information included in this report, fairly present in all material respects the
financial  condition,  results of operations and cash flows of the registrant as
of, and for, the periods presented in this report;


     4. The registrant's  other certifying  officer(s) and I are responsible for
establishing and maintaining  disclosure  controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:


          (a) Designed such disclosure  controls and procedures,  or caused such
     disclosure controls and procedures to be designed under our supervision, to
     ensure that material information relating to the registrant,  including its
     consolidated  subsidiaries,  is made  known to us by  others  within  those
     entities,  particularly  during the  period in which  this  report is being
     prepared;


          (b)  Evaluated  the  effectiveness  of  the  registrant's   disclosure
     controls and procedures and presented in this report our conclusions  about
     the effectiveness of the disclosure controls and procedures,  as of the end
     of the period covered by this report based on such evaluation; and


          (c) Disclosed in this report any change in the  registrant's  internal
     control over financial reporting that occurred during the registrant's most
     recent fiscal quarter (the  registrant's  fourth fiscal quarter in the case
     of an annual report) that has materially affected,  or is reasonably likely
     to affect, the registrant's internal control over financial reporting; and


     5. The registrant's other certifying officer(s) and I have disclosed, based
on our most recent evaluation of internal control over financial  reporting,  to
the  registrant's  auditors  and the audit  committee of  registrant's  board of
directors (or persons performing the equivalent functions):


          (a) All significant deficiencies and material weaknesses in the design
     or  operation  of  internal  control  over  financial  reporting  which are
     reasonably  likely to adversely affect the registrant's  ability to record,
     process, summarize and report financial information; and


          (b) Any fraud,  whether or not material,  that involves  management or
     other employees who have a significant  role in the  registrant's  internal
     control over financial reporting.


Date: May 16, 2005


/s/ Samuel N. Seidman
---------------------------
Samuel N. Seidman,
Chairman and Chief Executive Officer