Repeating patterns are also referred to as ‘diaper patterns’ or ‘all-over patterns’. Such geometric repeating patterns are very easy to draw with a grid, and specifically these two are drawn with a square grid. Apparently the ancient Egyptians knew the principle of drawing such repeating patterns because they used them a lot. Both patterns have been drawn in 2D CAD software and consist only of straight lines and arcs. They are fully editable, so you can modify them to meet your design specifications.
Feel free to use these tessellation patterns and save some time.