JE

Joseph M. Erwin

📍 Gaithersburg, MD: #769 of 1,746 inventorsTop 45%
🗺 Maryland: #13,387 of 35,612 inventorsTop 40%
Overall (All Time): #2,265,324 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5826545 Animal caging system John T. Steffes, John C. Landon 1998-10-27
5247901 Containment system for promoting improved animal well-being John C. Landon, John T. Steffes 1993-09-28