Croak, Marian
1955- · Contribution: 1990s-2000s
Voice over IP (VoIP) technology development

Portraits are AI-generated interpretations, not photographs.
Impact on the world
Her work was instrumental in developing VoIP technology that underlies most modern internet-based phone and video calling systems; inducted into the National Inventors Hall of Fame in 2022.
Life & background
An engineer holding over 200 patents related to Voice over IP technology, Croak's innovations were foundational to the internet-based calling systems used globally today. She was inducted into the National Inventors Hall of Fame in 2022.
Sources
- National Inventors Hall of Fame; U.S. patent record; Lemelson-MIT
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