Mary Humphrey

UN Unknown: 2 patents #12,644 of 83,584Top 20%

📍 Carlsbad, CA: #1,359 of 2,500 inventorsTop 55%

🗺 California: #185,134 of 386,348 inventorsTop 50%

Overall (All Time): #2,153,810 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7169296	Collapsible digester	John B. Rice	2007-01-30
6887374	Collapsible digester	John B. Rice	2005-05-03