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1 vote
2 answers
55 views

How far do I have to go back in time to only be looking at free state of the art patent documents?

I want to do a free state of the art patent search and I wan to know, how far do I have to go back in time to be 100% sure all shown patent documents are free state of the art? Up until now I was ...
0 votes
2 answers
30 views

How does the GPLv3 affect software patents?

Can the author of the program file a software patent? Does this apply to anyone who has contributed? Can users use my program in their patent?
3 votes
2 answers
65 views

Does the use of software covered by GPLv3 and used in a patent for a device have any effect on the validity of the patent?

If one wants to use free software like Machinekit covered by GPLv3 in the further development of a device covered by the patent, does the use of the software have any effect on the validity of the ...
4 votes
1 answer
84 views

Is there no circumstance where people can use free and open versions of software patents?

In the United States, is there no circumstance where someone can use a software patent for free? This may seem obvious, but with software is very nuanced. I searched and couldn't find anyone who ...