You can read their Intellectual Property statements here. https://csrc.nist.gov/CSRC/media/Projects/Post-Quantum-Cryptography/documents/call-for-proposals-final

You can read their Intellectual Property statements here. https://csrc.nist.gov/CSRC/media/Projects/Post-Quantum-Cryptography/documents/call-for-proposals-final-dec-2016.pdf https://csrc.nist.gov/CSRC/media/Projects/Post-Quantum-Crypt.... They will allow patents but their goal seems to be a royalty-free implementation.