1. Exclusive License: Only the licensee can use the trademark, while the licensor retains ownership.

2. Non-Exclusive License: The licensee is one of many users, with the licensor retaining usage and ownership rights.

3. Sole License: The licensee is the only other user, with the licensor keeping ownership but forfeiting further licensing.

4. Sub License: Both licensor and licensee can grant licenses, but ownership remains solely with the licensor.

Choose the right trademark license for your business wisely!