. "Mark Bowen"@en . "Mark B. Barron"@en . "1958Z"^^ . "Bowen, Mark"@en . "American inventor" . "1958-01-15Z"^^ . . . "Mark B. Barron (born Mark Bowen; 1958) is an American entrepreneur and inventor. He is the CEO of Public Transportation Safety International Corporation (PTS), which invented and produces the S-1 Gard Dangerzone Deflector for transit buses and the Minimize Danger Zone (MDZ) Shield for school buses."@en . "Barron, Mark B."@en .