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On July 25, 2008, the United States International Trade Commission Court (ITC) terminated
its investigation of patent infringement made by Crocs against Effervescent Inc., makers
of Waldies Comfy Clogs, and ten other companies.
The ITC found that Waldies clogs do not infringe any valid Crocs patent. The ITC further
concluded that Croc’s claimed invention — adding a foam pivoting strap to a Waldies-type
clog — was obvious, and that the USA Utility Patent for that obvious invention was invalid.
This latest legal blow comes hard on the heels of another loss Crocs suffered in December
2007, when the European Union’s Office for Harmonization (OHIM) invalidated Crocs’
Registered Community Design Patent. Earlier in 2007, the Canadian Intellectual Property
Office also rescinded its preliminary decision to give Crocs patent rights.
History: The world discovered the foam clog phenomenon in 2001 when Walden Kayaks introduced
Waldies to kayakers and hikers. Waldies quickly spread to feet all over the World!
Effervescent Inc & Waldies Comfy Clogs,
12 Baltic Lane, Fitchburg, MA 01420 USA
P: (978) 345 1857