This document describes the policy governing the use of the "Dask" trademark, which is owned by NumFOCUS and administered on behalf of the Dask project. Any use of the Dask trademark commercially or non-commercially must be in accordance with the policy described in this document unless specific written permission is obtained from NumFOCUS.
Usage and modification of the Dask software is governed by the license, which describes permissible behavior under copyright law. Trademarks are a distinct form of intellectual property, and so the guidelines in this document apply only to the "Dask" trademark and logo, but not to the software itself.
Our goal is to enable the Dask trademark and logo to be used with minimal restrictions by both commercial and non-commercial entities, but we do not want the Dask trademark to be used:
- to cause confusion about whether a project, product, or service is endorsed by the Dask community in some way.
- in a way that allows an entity to misleadingly imply ownership of Dask or influence over the Dask project.
The Dask trademark is always subject to "nominative use rules" which allow the usage of the trademark for descriptive purposes that does not suggest sponsorship or endorsement by the trademark owner. You may freely describe that your product or service "uses Dask" or is "powered by Dask," and you may use the unaltered Dask logo to indicate this without prior approval. (Please see the Dask Brand Guide for more details about how to use the Dask logo.)
Open source projects may also use the Dask name as part of the name of their
project (Ex: dask-cuda) so long as it satisfies all the following
criteria:
- The project is open source with an open source license that would permit upstreaming relevant parts of the project into the Dask project (if appropriate). For example, copyleft licenses would not be allowed, as such code could not be brought into Dask itself without imposing additional license restrictions on Dask users.
- The project is related to Dask.
- The project name should not be overly grand in claiming namespace.
- The project should not make subjective claims in the name itself.
Usage of the "Dask" trademark should also be consistent with the Dask Code of Conduct.
The Dask trademark may not be used in a commercial product or company name. Examples of disallowed uses include:
- Dask Pro
- Dask Enterprise
- The Dask Company
- CompanyName Dask
Company and product logos may not derive from the Dask logo in a way that would cause brand confusion.
If you are unsure whether your planned usage of the Dask trademark is allowed, or feel that you need specific written approval for your situation, please contact the Dask maintainers at info@dask.org.
This document is the result of the community discussion found in dask/governance#4. It draws inspiration from both the PSF Trademark Policy and the Model Trademark Guidelines, available at http://www.modeltrademarkguidelines.org.