JB

John C. Barker

Overall (2021): #148,312 of 548,734Top 30%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11137274 Gauge stand 2021-10-05
10957496 Connector Benjamin Metcalfe, Allan Caple 2021-03-23