 | | | Metaballs - regarding patent. | Metaballs - regarding patent. 2005-04-15 - By Alan Jones
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Nothing's wrong with patents in themselves. Just the proposed software
patents are generally far too generic. Do you want to pay royalties to
incorporate a scrollbar in an application you're developing?
Cheers,
Alan.
On 4/15/05, Alastair Hearsum <AlastairH@(protected)> wrote:
> Sorry if this is a heretical question and if I haven't thought about this
> deeply enough but what is wrong with the idea of patents?
>
> Alastair Hearsum
>
> -- --Original Message-- --
> From: Joe Saltzman [mailto:joe@(protected)]
> Sent: 14 April 2005 20:39
> To: XSI mail list
> Subject: Metaballs - regarding patent.
>
> I just did a simple google search.... this is what I came up with.
>
> Seems like GE may hold the patent -- they might have become aggressive in
> its enforcement -- do you want to take a chance on an infringement case with
> GE? Could you afford to fight such a case? I don't think most people could
> do.
>
> Just another reason why software patents are not a good thing IMHO.
>
> Cheers,
>
> Joe Saltzman
>
> Subject 5.11: What is the status of the patent on the "marching cubes"
> algorithm?
>
> United States Patent Number: 4,710,876
> Date of Patent: Dec. 1, 1987
> Inventors: Harvey E. Cline, William E. Lorensen
> Assignee: General Electric Company
> Title: "System and Method for the Display of Surface Structures Contained
> Within the Interior Region of a Solid Body"
> Filed: Jun. 5, 1985
>
> United States Patent Number: 4,885,688
> Date of Patent: Dec. 5, 1989
> Inventor: Carl R. Crawford
> Assignee: General Electric Company
> Title: "Minimization of Directed Points Generated in Three-Dimensional
> Dividing Cubes Method"
> Filed: Nov. 25, 1987
>
> You wrote:
>
> I've heard this before and it seems rather absurd. Metaballs were in Soft
> 3D and Houdini before Rem Inforgaphica patented them.
>
> I have never heard of patents being retroactive.
>
> - -- --Original Message-- --
> From: owner-xsi@(protected) [owner-xsi@(protected)] On Behalf Of peterb
> Sent: April 14, 2005 1:16 PM
> To: XSI@(protected)
> Subject: Re: Metaballs....
>
> And it didnt stop any competition for implementing them either...
>
> - -- -- Original Message -- --
> From: "Andi Farhall" <andi@(protected)>
> To: <XSI@(protected)>
> Sent: Thursday, April 14, 2005 7:04 AM
> Subject: RE: Metaballs....
>
> > daft question i know but which algorithm did soft|3d use? There was
> > obviously no patent problem there so how come now.....
>
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