courtesy of Zob.
The subject says it all..Where do you find who has what trademarked? I'm assuming theres a website.
As I've mentioned recently, most current trademarks can be easily researched here: http://www.nameprotect.com
Lawyers and legal researchers use the official USPTO search engine, which is also online and is free for the public to use. It's available at: http://tess2.uspto.gov/bin/gate.exe?f=tess&state=gosfas.1.1(Note though: this is only for trademark registrations in the United States.)
For comprehensive, *global* scale searches, your best bet is to hire someone like CCH or Thomson & Thomson (http://www.thomson-thomson.com/) to do all the legwork for you. Or best yet-- hire a trademark attorney! :D (I mean, assuming that your interest is greater than mere curiousity.) :)
(see also: Patents)
(see also: Manufacturer-stampings)