Who was Dr. Wu Lien-teh? March 10th Google Doodle explained! th’s Google Doodle pays homage to Dr. Wu Lien-teh on his 142 nd birthday, but who was he? Read on to find out the impressive, and relevant, story of the Chinese-Malaysian doctor. The Google logo looks a little different today—that’s because the art work celebrates the life and birthday of Dr. Wu Lien-teh. Depicting the doctor in full bio-hazard wear, creating medical masks, it’s erringly familiar. Dr. Wu Lien-teh invented a surgical face mask, which is considered as the blueprint of the N95 mask—the very one used in the current pandemic.