JH

John P. Hatfield

AC Arch Specialty Chemicals: 2 patents #24 of 79Top 35%
📍 Hope Valley, RI: #9 of 31 inventorsTop 30%
🗺 Rhode Island: #2,419 of 6,211 inventorsTop 40%
Overall (All Time): #2,177,299 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6911297 Photoresist compositions David Brzozowy, J. Thomas Kocab, Lawerence Ferreira, Andrew J. Blakeney 2005-06-28
6855476 Photoacid generators for use in photoresist compositions Lawrence Ferreira, Andrew J. Blakeney, Gregory Spaziano, Ognian N. Dimov, J. Thomas Kocab 2005-02-15