Re: [diy_3d_printing_and_fabrication] patents? You haven't seen anything yet... [1 Attachment]
- Graham Stabler wrote:
>Thanks, Graham! This seems to be the operative claim of infringement.
>But, if formlabs is not doing this partial cure trick, then it seems the
> 17. Upon information and belief, Formlabs and it sales agent
> Kickstarter knew or
> should have known about, or were willfully blind to, 3D Systems'
> extensive patent rights in the
> area of three-dimensional printing and stereolithography, including
> but not limited to 3D
> Systems' U.S. Patent No. 5,597,520 covering improved methods of
> forming a three-dimensional object by forming cross-sectional layers
> of an object from a
> material capable of physical transformation upon exposure to
> synergistic stimulation, by virtue
> of their sales of machines touted by Formlabs as using
> "stereolithography (SL) technology,"
> which is a technology invented and extensively patented by 3D Systems
> and its founder Charles
is invalid, just my reading of it.
- Kenneth Lerman wrote:
>The specific patent they refer to by number deals with some kind of
> One thing I noticed in the complaint was a section saying that there
> was no non-infringing use of the allegedly infringing device. Since
> the patent under discussion seems to relate to exposure for supports,
> it is clear that making objects that don't require support would be a
> non-infringing use.
of the resin to support overhangs. I'm not sure if that partially
hardened stuff is later
dissolved, scraped away, or hardens completely later. But, it seems to
a very specific concept that I doubt formlabs is using. So, at least to
it is not dealing with ordinary support structures, but something more
to support overhangs WITHOUT dedicated support structure from the bottom
up. This directing the court to a SPECIFIC patent, while only mentioning
that there are others, might be enough to scotch the whole suit. (I
but I'm NOT a lawyer.)