Licensing

Learn more about open source licensing, compliance, and licensing-related legal cases.

Search this database for inactive patents that are now in the public domain

Search this database for inactive patents that are now in the public domain
In the U.S. patent system, if maintenance fees are not paid, an issued patent goes into the public domain. Find out how to search the database.Read more

Do I need to provide access to source code under the AGPLv3 license?

Do I need to provide access to source code under the AGPLv3 license?
The source code requirement in AGPLv3 Section 13 is triggered only where the AGPLv3 software has been modified by "you."Read more

7 notable legal developments in open source in 2016

7 notable legal developments in open source in 2016
Learn about a few of the many open source-related legal developments that made headlines in 2016.Read more

Open source licenses are shared resources

Open source licenses are shared resources
Licenses are valuable shared resources. What might we do to support these shared resources?Read more

'Open source' is not 'free software'

'Open source' is not 'free software'
Open source won, but what are the consequences of ignoring free software philosophy and ideals?Read more

Giving proper credit to designers in 3D printing

Giving proper credit to designers in 3D printing
Many 3D printed objects are shared under Creative Commons licenses that require attribution be given to the designer, but there are no established...Read more

3 copyright tips for students and educators

3 copyright tips for students and educators
Copyright is a really complicated topic, and when it comes to online use of creative works, accidentally crossing the line between fair use and a...Read more

What is copyleft?

What is copyleft?
If you've spent much time in open source projects, you have probably seen the term "copyleft" used. While the term is quite commonly used, many...Read more