Some Painkilling History -
On March 6, 1899, the German chemical company Bayer registered "Aspirin" (acetylsalicylic acid) as a trademark in Berlin, marking its introduction as a, new pain relief product. Chemist Felix Hoffmann, working for Bayer, successfully synthesized this stable form of the compound on August 10, 1897, to aid his father's rheumatism.

DPMA Deutsches Patent- und Markenamt +4

Key details about the 1899 trademark and patent:

Registration Date: The trademark "Aspirin" was registered with the Imperial Patent Office in Berlin on March 6, 1899.

Patent Status: While the trademark was registered in 1899, the U.S. patent (No. 644,077) for acetylsalicylic acid was also issued to Felix Hoffmann on March 6, 1899, assigned to the Farben-Fabriken of Elberfeld Company.

The Name: "Aspirin" was derived from "A" for acetyl and "spirin" from Spiraea ulmaria (a plant source of salicylic acid).

Initial Sale: It was first marketed as a powder in 1899, and later in tablet form by 1915.

DPMA Deutsches Patent- und Markenamt +5

Although Hoffmann is credited with the first stable synthesis, historical debate suggests other Bayer chemists, such as Arthur Eichengrün, may have played a key role in its development