| A | B |
|---|
| Automatic Elevator Doors | Alexander Miles |
| Automatic lubricator to spread oil evenly over a moving train engine. | Elijah McCoy(Lent his name to the expression the Real McCoy as engineers demanded his lubricant rather than cheap copies.) |
| Patented the carbon filament for incandescent lightbulbs. | Lewis Latimer (This made electric lighting practical and affordable) |
| Automatic Shoe Making Machine | Jan Matzelinger (Made shoes cheaper and affordable. |
| Induction telegraph system to communicate with trains also prefected the air braking system | Granville Woods |
| Crop Rotation and other Agricultural innovations | George Washington Carver |
| Hair Care Products for African American Women | Madame C.J. Walker |
| Early gas mask and the traffice signal | Garrett Morgan |
| Way to process and preserve blood plasma. | Dr. Charles Drew |
| Resistors and early electronics Pioneer. | Otis Boykin (Made electronics pratical and more affordable) |
| Microphone | James West |
| Laserplaco Probe used in eye surgery | Dr. Patricia Bath |
| Engineer for NASA who patented the Super Soaker Water Gun | Lonnie Johnson |
| Co-Inventor of the Personal Computer | Mark Dean |
