The ornamental design for a cooking pan for use in heating cookers, as shown and described.
FIG. 1 is a top and front perspective view of a cooking pan for use in heating cookers, showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a reference perspective view showing how upper and lower cooking pans of the cooking pan for use in heating cookers are assembled with and disassembled from each other in the arrow direction.
The broken lines shown in the figures are for illustrative purposes only and form no part of the claimed design.