OK Industries ?
http://www.dialelec.com/semiconductorlogos.html
http://freespace.virgin.net/matt.waite/resource/logos/index.htm
http://www.elnec.com/iclogos_l.php
http://www.rfcafe.com/vendors/logos/logos_f-o.htm
http://www.chipdocs.com/logos/logotypes.html
http://www.classiccmp.org/rtellason/logos/semiconductorlogos.html
http://www.cpushack.net/logos.html
http://www.engineering.uiowa.edu/~eshop/mflogo.dir/ic-id.html
http://www.eyesurf.co.uk/~nutteing/logotext.htm
http://geocities.com/total_project_solutions/icmanufacturerslogo.pdf
http://www.embeddedlinks.com/chipdir/c/logo.htm
www.colargol.idb.hist.no/~mortenqo/semicond.html
www.elektronikforum.de/ic-id/
www.aufzu.de/semi/gif/
www.aufzu.de/semi/gif/stamps.html
www.uspto.gov/tmdb/
tess.uspto.gov/bin/gate.exe?f=tess&state=pso0mm.1.1
www.cs.unc.edu/~msl/logos/logolist.htm
www.plasma-online.de/english/identify/picture/index_logomanu.html
www.plasma-online.de/english/identify/picture/index_logochip.html