Like the GNU General Public License, the OHL is designed to guarantee freedom to share and to create, and forbids anyone who receives rights under the OHL to deny any other licensee those same rights to copy, modify, and distribute documentation, and to make, use and distribute products based on that documentation.
The TAPR OHL is the license for the materials from the Open Graphics Project as of April 7, 2009.
[3] The TAPR OHL is the license for the materials from Lotus Green Data Centers as of July 28, 2008.
[4][5] Former OSI president Eric S. Raymond expressed some concerns about certain aspects of the OHL.
[6] There were also concerns that the Open Hardware License may place the design and/or idea into the public domain by publishing it before securing the benefits of patent protection.