JR

John Michael Richardson

📍 Devon, PA: #3 of 13 inventorsTop 25%
🗺 Pennsylvania: #1,792 of 6,061 inventorsTop 30%
Overall (2011): #257,988 of 364,097Top 75%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8083508 Progressive cavity compressor having check valves on the discharge endplate Jack H. Irving, Howard M. Robbins 2011-12-27