JC

John C. H. Chang

3M: 3 patents #83 of 1,132Top 8%
📍 Naperville, IL: #11 of 258 inventorsTop 5%
🗺 Illinois: #312 of 5,663 inventorsTop 6%
Overall (2004): #26,895 of 270,089Top 10%
3
Patents 2004

Issued Patents 2004

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6802870 Method for imparting soil and stain resistance to carpet Robert F. Deutsch 2004-10-12
6736857 Method for imparting soil and stain resistance to carpet Robert F. Deutsch 2004-05-18
6723438 Soil resistant curable laminate coating Irvin F. Dunsmore 2004-04-20