> Christoph Gutjahr? Anyone know him?

https://morph.zone/userinfo.php?uid=1645
http://wiki.aminet.net/Team_Members
http://www.amiga-news.de/impressume.shtml
http://deliriumbbs.freehostia.com/en.bbs
http://gutjahr.free.fr/temp/
http://www.amiga.org/forums/member.php?u=966
http://www.amiga.org/forums/member.php?u=357
http://amigaworld.net/userinfo.php?uid=360
http://eab.abime.net/member.php?u=363
http://www.lemonamiga.com/forum/profile.php?mode=viewprofile&u=281
http://sourceforge.net/users/cgutjahr

> "Cloanto Italia SRL 2006 Opposition pending" - Really?

Most recent (and final) status is "Opposition dismissed":

http://www.amiga-news.de/en/news/AN-2011-03-00002-EN.html
http://ttabvue.uspto.gov/ttabvue/v?pno=91183272
http://ttabvue.uspto.gov/ttabvue/v?pno=91175664