JG

James A. Grichnik

📍 Elk Grove Village, IL: #112 of 434 inventorsTop 30%
🗺 Illinois: #21,447 of 84,256 inventorsTop 30%
Overall (All Time): #1,142,729 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11331062 Mobile x-ray imaging apparatus 2022-05-17
11191500 Portable barium swallow test apparatus 2021-12-07
5586162 Portable X-ray machine 1996-12-17
4230944 X-ray system exposure control with ion chamber Douglas C. Wiegman 1980-10-28