DD

Dale A. Dopson

HT Helix Technology: 2 patents #39 of 132Top 30%
📍 Milton, MA: #193 of 436 inventorsTop 45%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,293,530 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5301511 Cryopump and cryopanel having frost concentrating device Allen J. Bartlett, Charles A. Stochl, Anthony M. Guerra, Paul Meroski, Thomas F. Stevens 1994-04-12
4949546 Compact heat exchanger for a cryogenic refrigerator Lawrence A. Klusmier, Allen J. Bartlett 1990-08-21