In 1927, the ink cartridge was invented, a replaceable container that holds ink for fountain pens. This innovation made filling fountain pens cleaner and more convenient, eliminating the need for messy ink bottles. The ink cartridge would later become the standard for fountain pens and, eventually, for other types of pens.

The ink cartridge simplified the maintenance of fountain pens, making them more user-friendly and appealing to a wider audience. For poets, this meant less time spent on pen maintenance and more time for writing. The convenience of the cartridge also encouraged the use of fountain pens for everyday writing, not just for formal occasions.