Inventor Daniel Cooper patented the first time clock in the US.
Source
Alexander Graham Bell applied for a patent for the telephone.
Arthur Schawlow & Charles Townes was granted the first patent for a laser.
Harvey Kennedy patented the modern shoelace, which included aglet reinforced tips.
Johannes Ostermeier patented the flashbulb for cameras.
American inventor Eli Whitney was granted a patent for a ground-breaking new type of cotton gin.
