JJ

Joseph P. Johnson

HT Helix Technology: 2 patents #39 of 132Top 30%
Overall (All Time): #2,247,900 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5906102 Cryopump with gas heated exhaust valve and method of warming surfaces of an exhaust valve Allen J. Bartlett, Michael J. Eacobacci 1999-05-25
5887438 Low profile in line cryogenic water pump Stephen R. Matte, Doug F. Aitken, Mark E. Clemons 1999-03-30