DR

David A. Roberts

Air Products And Chemicals: 2 patents #13 of 151Top 9%
📍 Allentown, PA: #7 of 69 inventorsTop 15%
🗺 Pennsylvania: #389 of 4,367 inventorsTop 9%
Overall (1997): #42,721 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
RE35614 Process for improved quality of CVD copper films John Anthony Thomas Norman, Arthur Kenneth Hochberg 1997-09-23
5626775 Plasma etch with trifluoroacetic acid and derivatives Raymond Nicholas Vrtis, Arthur Kenneth Hochberg, Robert G. Bryant, John Giles Langan 1997-05-06