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> and at that time, was patented

Is it no longer patented today? Who held the patent and was it released or did it just expire?

Looks like a bullshit patent to me, anyway. Isn't it an obvious procedure to go from voxel to voxel in order to create a mesh from a 3D texture?

The patent expired in 2005.

you wouldn't have a link to the actual patent do you?