What is the difference between the food patent number and the production date? For example: if there is no production date, the patent number is 2005300910668.

The patent number is the time when the product was patented. For example, the patent number is 2005300910668. It can be seen that the patent was applied for in 2005.

The production date of the product must be synchronized with the production. Mark that date when it was produced.

The patent number is available from the date of application and will not change every year. It is fixed