IGEN INTERNATIONAL INC /DE — DEF 14A

IGEN INTERNATIONAL INC /DE of GAITHERSBURG, MD filed a DEF 14A with the SEC on 1996-08-29. Industry: Patent Owners & Lessors.

Filing

Filing timeline for this registrant (19)

Showing 12 of 19 filings.

FiledForm
2004-01-13425
2003-10-30425
2003-09-29425
2003-09-29425
2003-07-31425
2003-07-30425
2003-07-29DEF 14A
2003-07-25425
2003-07-25425
2002-07-26DEF 14A
2001-09-05DEFA14A
2001-07-30DEF 14A

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