MD

Michael S. Duty

Overall (All Time): #2,289,468 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5451929 Smoke alarm and air cleaning device Roger A. Adelman, Donald G. Attermeyer 1995-09-19
5182542 Smoke alarm and air cleaning device Roger A. Adelman 1993-01-26