John C. H. Chang

WF Wallace Business Forms: 1 patents #2 of 3Top 70%

📍 Naperville, IL: #22 of 70 inventorsTop 35%

🗺 Illinois: #566 of 2,749 inventorsTop 25%

Overall (1982): #53,667 of 81,411Top 70%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4317743	Process for making microcapsules and resulting product	—	1982-03-02