Final answer:
Without specific details on the Leonard Burger, common burger patty sizes range from 4 to 12 ounces or more, depending on whether it's a standard or gourmet burger.
Step-by-step explanation:
To determine how many ounces the patties on the Leonard Burger are, you would typically need to consult the menu of the establishment offering this burger, as the weight of the burger patties can vary by restaurant. However, without specific information about the Leonard Burger, we can refer to some common sizes for burger patties in general. Often, standard burger patties can range from about 4 ounces to 8 ounces. If the Leonard Burger is a specialty or gourmet burger, it may have larger patties, sometimes going up to 12 ounces or more. To receive an accurate answer, you need to obtain the exact details from the source selling the Leonard Burger.