| 5000447 | Deformable base | Bartoli | 473/499 | |
| 4915383 | Base for little league baseball field | Yamakuchi | 473/499 | |
| 4493486 | Ball base construction and anchor | Fuller et al. | ||
| 4463950 | Batting practice trainer | Elkin | ||
| 3971558 | Base marker for baseball | Gardetto | 472/499 | |
| 3938804 | Safety base for athletic events | Willet | ||
| 3341199 | Baseball and home plate | Madsen | ||
| 3204958 | Yieldable baseball base | Velasquez | 473/499 | |
| 2122266 | Base plate for baseball diamonds | Seys | 473/499 | |
| 1868088 | Art and apparatus for games | Blair | 473/499 | |
| 0357675 | N/A | Keating | 473/499 | |
| D199128 | N/A | Madsen | D21/780 | |
| D418569 | T-ball matt | Murphy | D21/780 |
FIG. 2 is a top plan view of a bseball base shaded to show the colors red, green and white;
FIG. 3 is a top plan view of a baseball base shaded to show the colors red and green;
FIG. 4 is a top plan view of a baseball base shaded to show the colors green and white; and
FIG. 5 is a top plan view of a baseball base shaded to show the colors green and orange.
Shading throughout the figures in indicative of different colors.