EXHIBIT 31.1


                                CERTIFICATION of ceo


I, Peter Scholl, 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.

Date: August 12, 2005
                                 ROTOBLOCK CORPORATION,
                                 Registrant

                             /s/ Peter Scholl
                                 ----------------------------------
                                 By: Peter Scholl, President,
                                 Chief Executive Officer,
                                 and Director