**EXHIBIT
        31.1**
 
 **CERTIFICATION
        OF CHIEF EXECUTIVE OFFICER PURSUANT TO**
 **SECTION
        302 OF THE SARBANES-OXLEY ACT**
 
 I,
        Matthias Heinze, certify that:
 
 (1)  I
        have
        reviewed this amended annual report of Rotoblock Corporation;
 
 (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 Rotoblock Corporation as of, and
        for,
        the periods presented in this report;
 
 (4)  Rotoblock
        Corporation'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)):
 
 (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 Rotoblock Corporation, 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 Rotoblock Corporation'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 Rotoblock Corporation's internal control over
        financial reporting that occurred during Rotoblock Corporation's most recent
        fiscal quarter (Rotoblock Corporation's fourth fiscal quarter in the case
        of an
        annual report) that has materially affected, or is reasonably likely to
        materially affect, Rotoblock Corporation's internal control over financial
        reporting; and
 
 (5)  Rotoblock
        Corporation's other certifying officer(s) and I have disclosed, based on
        our
        most recent evaluation of internal control over financial reporting, to
        Rotoblock Corporation's auditors and the audit committee of Rotoblock
        Corporation'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 Rotoblock Corporation'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 Rotoblock Corporation's internal control over
        financial reporting.
  
 Dated:
        October 28,
        2007 ROTOBLOCK
        CORPORATION
 
 /s/
        Matthias Heinze
 By:
        Matthias Heinze, President,
 Chief
        Executive Officer and Director