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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=4><B>UNITED STATES
<BR>
SECURITIES AND EXCHANGE COMMISSION</B></FONT>
<BR>
<FONT FACE="Times New Roman, Times, Serif" SIZE=2>Washington, D.C. 20549</FONT></P>

<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=4>FORM 8-K </FONT></H1>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE="3"><B>CURRENT REPORT
<BR></B> </FONT>
<FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>Pursuant to Section 13 or 15(d)
<BR>
of the Securities Exchange Act of 1934</B> </FONT>
<BR><BR>
<FONT FACE="Times New Roman, Times, Serif" SIZE="2">Date of Report (Date of earliest event reported): October 14, 2003 </FONT>
</P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE="5"><B>MOLECULAR DEVICES CORPORATION</B> </FONT>
<BR>
<FONT FACE="Times New Roman, Times, Serif" SIZE="2">(Exact name of registrant as specified in its charter) </FONT>
<BR>
<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Delaware</B></FONT>
<BR>
(State or other jurisdiction of incorporation)</P>




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     <TD WIDTH="50%" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>0-27316</B> </FONT></TD>
     <TD WIDTH="50%" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>94-2914362</B> </FONT></TD></TR>
<TR VALIGN=Bottom>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">(Commission File Number) </FONT></TD>
     <TD ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE="2">(IRS Employer Identification No.) </FONT></TD></TR>
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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>1311 Orleans Drive
<BR>
Sunnyvale, CA 94089</B>
<BR>
(Address of Principal Executive Offices, including Zip Code)
<BR><BR>
Registrant&#146;s telephone number, including area code: (408) 747-1700
<BR>
_________________ </FONT></P>



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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Item&nbsp;12.&nbsp;&nbsp;&nbsp;&nbsp;
     Results of Operations and Financial Condition.</B> </FONT></P>

<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>On October 14, 2003, Molecular Devices Corporation
("Molecular Devices") reported its fiscal third quarter results for the period ending September 30, 2003.
A copy of the press release issued by Molecular Devices on October 14, 2003 concerning the foregoing results
is furnished herewith as Exhibit 99.1 and is incorporated herein by reference.</FONT></P>

<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The information in this report, including the exhibit
hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934,
as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the
Securities Act of 1933, as amended. The information contained herein and in the accompanying exhibit shall
not be incorporated by reference into any filing with the U.S. Securities and Exchange Commission made by
Molecular Devices, whether made before or after the date hereof, regardless of any general incorporation
language in such filing.</FONT></P>


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<A NAME=A018></A>
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SIGNATURE </FONT></H1>

<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused
this report to be signed on its behalf by the undersigned, thereunto duly authorized. </FONT></P>


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     <TD WIDTH=42% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD WIDTH=8% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD WIDTH=50% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>MOLECULAR DEVICES CORPORATION</B></FONT></TD></TR>
<TR>
     <TD ALIGN=RIGHT>&nbsp;</TD>
     <TD ALIGN=RIGHT>&nbsp;</TD>
     <TD ALIGN=RIGHT>&nbsp;</TD></TR>
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     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Dated: October 14, 2003</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>By:&nbsp;&nbsp;&nbsp;&nbsp;/s/ Timothy A. Harkness</FONT></TD></TR>
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     <TD ALIGN=RIGHT><HR NOSHADE COLOR=Black SIZE=1></TD></TR>
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     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Timothy A. Harkness</FONT></TD></TR>
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     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Vice President and Chief</FONT></TD></TR>
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     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial Officer</FONT></TD></TR>
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<A NAME=A019></A>
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>INDEX TO EXHIBITS </FONT></H1>

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<TD WIDTH="2%"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>99.1</FONT></TD>
<TD WIDTH="2%"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;</FONT></TD>
<TD WIDTH="96%"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Press release, dated as of October 14, 2003, reporting Molecular Devices
Corporation&#146;s fiscal third quarter results for the period ended September 30, 2003
(furnished and not filed herewith solely pursuant to Item&nbsp;12). </FONT></TD>
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): October 14, 2003
MOLECULAR DEVICES CORPORATION
(Exact name of registrant as specified in its charter)
Delaware
(State or other jurisdiction of incorporation)
0-27316
94-2914362
(Commission File Number)
(IRS Employer Identification No.)
1311 Orleans Drive
Sunnyvale, CA 94089
(Address of Principal Executive Offices, including Zip Code)
Registrant's telephone number, including area code: (408) 747-1700
_________________
Item 12.    
     Results of Operations and Financial Condition.
On October 14, 2003, Molecular Devices Corporation
("Molecular Devices") reported its fiscal third quarter results for the period ending September 30, 2003.
A copy of the press release issued by Molecular Devices on October 14, 2003 concerning the foregoing results
is furnished herewith as Exhibit 99.1 and is incorporated herein by reference.
The information in this report, including the exhibit
hereto, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934,
as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the
Securities Act of 1933, as amended. The information contained herein and in the accompanying exhibit shall
not be incorporated by reference into any filing with the U.S. Securities and Exchange Commission made by
Molecular Devices, whether made before or after the date hereof, regardless of any general incorporation
language in such filing.
SIGNATURE
Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused
this report to be signed on its behalf by the undersigned, thereunto duly authorized.
MOLECULAR DEVICES CORPORATION
Dated: October 14, 2003
By:    /s/ Timothy A. Harkness
Timothy A. Harkness
Vice President and Chief
Financial Officer
INDEX TO EXHIBITS
99.1
Press release, dated as of October 14, 2003, reporting Molecular Devices
Corporation's fiscal third quarter results for the period ended September 30, 2003
(furnished and not filed herewith solely pursuant to Item 12).