Assignee
LONGSWORTH RALPH
US·6 granted patents·26 citations·filing 2011–2012
Top patents by PatentIndex Score
6 records- 0194US8448461B2Fast cool down cryogenic refrigeratorLONGSWORTH RALPH·Filed 2011·Granted May 28, 2013·13 cites·21 claims
- 0286US9080794B2Gas balanced cryogenic expansion engineLONGSWORTH RALPH·Filed 2011·Granted Jul 14, 2015·6 cites·13 claims
- 0384US9546647B2Gas balanced brayton cycle cold water vapor cryopumpLONGSWORTH RALPH·Filed 2012·Granted Jan 17, 2017·5 cites·13 claims
- 0471US9186601B2Cryopump drain and ventLONGSWORTH RALPH·Filed 2012·Granted Nov 17, 2015·2 cites·5 claims
- 0554US10677498B2Brayton cycle engine with high displacement rate and low vibrationLONGSWORTH RALPH·Filed 2012·Granted Jun 9, 2020·0 cites·17 claims
- 0648US9174144B2Low profile cryopumpLONGSWORTH RALPH·Filed 2012·Granted Nov 3, 2015·0 cites·8 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →