$IOSP SEC Filings

Filing Filed On
SC 13G/A 13 Feb 2003
AS OF 12/31/2002 06 Feb 2003
OTL 13G A4 FINAL 09 Aug 2002
DOC ONE 14 Feb 2002
SC 13G/A 13 Feb 2002
AS OF 12/31/2001 12 Feb 2002
OCTEL CORP., AMENDED SC 13G BY BAUPOST 14 Feb 2001
SCHEDULE 13G - 02-14-01 - OCTEL CORPORATION 14 Feb 2001
SC 13G/A 14 Feb 2001
SC 13G/A 09 Feb 2001
SCHEDULE 13G - 02-14-00 - OCTEL CORPORATION 14 Feb 2000
OCTEL CORP., AMENDED 13G BY BAUPOST 10 Feb 2000
SC 13G/A 07 Feb 2000
SCHEDULE 13G - 02-01-99 - OCTEL CORPORATION 18 Feb 1999
SC 13G/A 10 Feb 1999