If you do not wish to commercialise your patented invention, copyrighted work or registered trademark and/or design yourself, and if you intend to engage third parties, a licence agreement is your best option. While retaining your property rights, you give others permission to manufacture, use and/or commercialise your invention, work, trademark and/ or design under your terms. You agree that you will not invoke your rights against third parties and that, according to the conditions laid down in the agreement, these third parties will be entitled to make (limited) use of your invention, work, trademark and/or design. There is often mention of exclusive, non-exclusive and sole licence agreements. Although ‘exclusive’, ‘non-exclusive’ and ‘sole’ are not legal terms, in our field of expertise they mean the following: