Assignee
LONGSWORTH RALPH
US6 patents
Top patents by PatentIndex Score
US8448461B2May 28, 2013
Fast cool down cryogenic refrigerator
LONGSWORTH RALPH13 citations82
US9546647B2Jan 17, 2017
Gas balanced brayton cycle cold water vapor cryopump
LONGSWORTH RALPH5 citations71
US9080794B2Jul 14, 2015
Gas balanced cryogenic expansion engine
LONGSWORTH RALPH6 citations71
US9186601B2Nov 17, 2015
Cryopump drain and vent
LONGSWORTH RALPH2 citations60
US10677498B2Jun 9, 2020
Brayton cycle engine with high displacement rate and low vibration
LONGSWORTH RALPH0 citations50
US9174144B2Nov 3, 2015
Low profile cryopump
LONGSWORTH RALPH0 citations39