WARNING: Geeky info ahead....
OK, I did some research and more is coming. Here is the deal so far.
Stabilicers have been made in Maine since 1992, 13 years according to todays Email reply from
32 North .
They are aware of many "knock-offs" as well.
But the website you sent for
Icer's Inc. certainly lays some claims to history & invention and reference US Patent numbers.
A quick search at US Patent site shows this
CLAIM filed in 1990 and awarded in 1994.
Note:
Stabilcers were already in production and fall outside the patent claim by Icers.
There is a lot to read and understand here, and I have some limited experience with patent info, so my take on it is they have a patent on the "curled toe" and option for "curled heel" while they reference all the other previous patents worldwide for spikes and studs.
All of the other "stud" patents are expired, past the 17 year window of royalties allowed, from what I understand.
If Stabilicers are copying anything, its just the Vibram sole, but the strap on method and studded screws are in the "public domain" for reproduction.
In fact I'll bet
Vibram sells this sole to many other fabricators worldwide for varoius applications.
I Emailed back to Stabilcer at
32 North to ask specifically how thier product relates to patent info filed by
Icers.
I will wait thier reply.
I always hold high respect for those inventors who seek to patent thier ideas, but only ideas which are without question unique and original.
Cleated soles, however, have been around for a very long time.
Jeff