Questions tagged [patents]

For questions about the usages and roles of patents within open projects. This can concern protection of projects/patents, and their implications in licensing, projects, and usages.

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19
votes
1answer
7k views

Against what does the Apache 2.0 patent clause protect?

The Apache 2.0 patent clause says: Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, ...
7
votes
2answers
466 views

Interference of Software Patents with Free & Open Source Software

While visiting wikipedia page on Free and open-source software, I noticed the challenges from the template at bottom: In which Digital rights management and Software patents seems considerable to me....
37
votes
3answers
3k views

How could using code released under CC0 infringe on the author's patents?

Creative Commons defines a CC0 license type (here's the full legal code) that claims to allow creators to release their works into the public domain by waiving "all their copyright and related rights ...
26
votes
1answer
5k views

What does "express grant of patent rights from contributors to users" mean?

I'm trying to choose which open source license I should use in my app, and in the description for one of the licenses, it says the license provides an "express grant of patent rights from contributors ...
12
votes
2answers
1k views

Have open-source contributors ever been sued or threatened with a lawsuit for patent infringement?

Have open-source contributors ever been sued or threatened with a lawsuit for patent infringement in their contributions? What was the outcome? The way I see it, there is the "experimental use" ...
6
votes
2answers
4k views

Why doesn't the MIT license have "patent use" permission?

From https://choosealicense.com/licenses/ and https://choosealicense.com/appendix/ I notice that the MIT license doesn't have "patent use" permisson like other popular open source licenses. What ...
6
votes
1answer
727 views

Does the Apache license provide any benefit if I don't have any patents?

As far as I understand, the Apache 2.0 license is a fairly permissive license. It seems to me as if the only difference between the Apache license and other licenses (such as the MIT license), is the ...
5
votes
1answer
1k views

If I license software under the MIT license, will I be able to collect patent royalties?

The GPLv2 and GPLv3 has anti-patent clauses. The GPLv2 patent clause is "liberty or death": For example, if a patent license would not permit royalty-free redistribution of the Program by all ...
4
votes
2answers
306 views

Can I protect my open source library from USA software patent?

I am writing a library that may violate software patents. I just don't want to lose my time trying to see if I violate any software patents: I suppose that any skilled mathematician could be able to ...
1
vote
1answer
313 views

Is open source license compatible with a patent-encumbered standard?

Let's say heic is a patented image format. There is an open source implementation of heic called "libheif". GIMP use it to edit heic images, however, development team of Eye of Gnome(EOG) refuse to ...