DR

David Rich

📍 Upton, MA: #9 of 30 inventorsTop 30%
🗺 Massachusetts: #2,224 of 12,682 inventorsTop 20%
Overall (2018): #155,240 of 503,207Top 35%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10066877 High efficiency ventilation system Kevin Krimmel 2018-09-04
9891005 High efficiency ventilation system Kevin Krimmel 2018-02-13