DC

David Jonathan Chalk

Air Products And Chemicals: 1 patents #23 of 90Top 30%
📍 Slatington, PA: #3 of 6 inventorsTop 50%
🗺 Pennsylvania: #2,542 of 7,986 inventorsTop 35%
Overall (2020): #503,964 of 565,922Top 90%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10876634 Annular sealing assembly Gregory Peter Hupp, Douglas R. Williams, Lance Michael Grimm 2020-12-29