Robert H. Johns

AS Allegheny Ludlum Steel: 1 patents #1 of 5Top 20%

📍 Huntingdon Valley, PA: #2 of 11 inventorsTop 20%

🗺 Pennsylvania: #88 of 2,652 inventorsTop 4%

Overall (1982): #3,403 of 81,411Top 5%

Patents 1982

Issued Patents 1982

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4335386	Bifilar antenna trap	—	1982-06-15
4334228	Bifilar antenna trap	—	1982-06-08
4330025	Nozzle in a strip casting apparatus	—	1982-05-18