The invention of the fluorescent marking pen, a tool for visually emphasizing text, is credited to Dr. Frank Honn in the late 1960s while working for Carter’s Ink Company. His creation utilized a fluorescent ink encased in a felt-tipped barrel, allowing for easy application and vibrant color contrast on the page.
This seemingly simple innovation dramatically altered how people interact with written material. It facilitated efficient studying, quick referencing, and improved information retention by enabling readers to highlight key passages and concepts. This visual aid revolutionized note-taking practices across educational, professional, and personal domains, streamlining information processing and enhancing communication.
