Card Trivia:Dark Contract with Patent License
- The tallest pile of papers that appears in this card's artwork is shaped like the main building of Leo Corporation, whose CEO, Declan Akaba, used a "D/D" Deck in the Yu-Gi-Oh! ARC-V anime.
- The kanji Tokkyoken (特許権, "Patented Documents") in this card's Japanese name is a pun on Tōkyō-ken (東京県, "Tokyo Prefecture"), which is a reference to the bureaucratic aspect of the city.
- This card's effect to prevent the opponent from Special Summoning monsters with same card types of Extra Deck monsters as the monsters the player controls is similar to the effect of "Dark Contract with Exclusivity".
