One significant aspect of Black history in relation to medical patents is the story of Dr. Charles Drew. Dr. Drew was an African American physician, surgeon, and medical researcher who made pioneering contributions to the field of blood transfusions. He developed improved techniques for storing and preserving blood plasma, which was crucial during World War II for saving the lives of wounded soldiers.

In 1940, Dr. Drew invented a method for processing and storing blood plasma, known as the "Drew method." This technique allowed blood plasma to be dried and reconstituted as needed, making it easier to transport and store for medical use. His work significantly advanced the field of blood banking and transfusion medicine.

Although Dr. Charles Drew did not personally patent his method, his legacy and impact on the medical field continue to be recognized and celebrated. He is remembered as a trailblazer in medicine, a pioneering researcher, and a champion for the importance of blood donation and transfusion.