Inventor
OLSEN DONALD A
US11 patents
⚠️ This page may combine multiple inventors who share the name “OLSEN DONALD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HELIX TECH CORP
10 patentsUS6318093B2Nov 20, 2001
Electronically controlled cryopump
HELIX TECH CORP61 citations95
US4918930AApr 24, 1990
Electronically controlled cryopump
HELIX TECH CORP103 citations95
US4763483AAug 16, 1988
Cryopump and method of starting the cryopump
HELIX TECH CORP83 citations95
US5450316ASep 12, 1995
Electronic process controller having password override
HELIX TECH CORP60 citations94
US5157928AOct 27, 1992
Electronically controlled cryopump
HELIX TECH CORP61 citations94
US6755028B2Jun 29, 2004
Electronically controlled cryopump
HELIX TECH CORP19 citations92
US5343708ASep 6, 1994
Electronically controlled cryopump
HELIX TECH CORP36 citations92
US4577465AMar 25, 1986
Oil free vacuum system
HELIX TECH CORP36 citations92
US4546613AOct 15, 1985
Cryopump with rapid cooldown and increased pressure
HELIX TECH CORP45 citations92
US6460351B2Oct 8, 2002
Electronically controlled cryopump
HELIX TECH CORP13 citations81