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Inventor

Allen J. Bartlett

Inventor
Milford, MA, US

Overview

45→
Patents
1982–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 45 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F04Bprimary
F04BPositive-displacement machines for liquids24%
F25BRefrigeration machines, plants or systems14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
B01DSeparation9%
F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state6%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h105%
Y10TTechnical subjects covered by former us classification5%
F17DPipe-line systems4%
F24FAir-conditioning4%
F17CVessels for containing or storing compressed, liquefied or solidified gases2%
PatentTitleYear
10,900,699Helium management control system202110,760,562Pressure burst free high capacity cryopump202010,632,399Multi-refrigerator high speed cryopump202010,288,052Helium management control system201910,156,386System and method for cryogenic cooling201810,113,781Helium management control system20189,926,919'Cryopump'20189,687,753'Multi-refrigerator high speed cryopump'20179,334,859'Helium management control system'20169,266,038'Cryopump'20169,266,039'Cryopump with controlled hydrogen gas release'20168,869,552'Helium management control system'20148,413,452'Linear drive cryogenic refrigerator'20138,261,562'Helium management control system'20128,082,741'Integral facet cryopump, water vapor pump, or high vacuum pump'20117,788,942'Helium management control system'20107,320,224'Method and apparatus for detecting and measuring state of fullness in cryopumps'20087,313,922'High conductance cryopump for type III gas pumping'20087,194,867'Integrated rough/purge/vent (RPV) valve'20077,127,901'Helium management control system'20067,024,866'Axial loaded seal system with a static L-seal'20066,155,059'High capacity cryopump'20005,906,102'Cryopump with gas heated exhaust valve and method of warming surfaces of an exhaust valve'19995,862,671'Purge and rough cryopump regeneration process, cryopump and controller'19995,782,096'Cryopump with improved shielding'19985,517,823'Pressure controlled cryopump regeneration method and system'19965,375,424'Cryopump with electronically controlled regeneration'19945,356,270'Ultra high vacuum cryopump relief valve assembly'19945,301,511'Cryopump and cryopanel having frost concentrating device'19945,242,277'Ultra high vacuum cryopump relief valve assembly'19935,211,022'Cryopump with differential pumping capability'19935,156,007'Cryopump with improved second stage passageway'1992RE033878'Cryogenic recondenser with remote cold box'19925,060,481'Method and apparatus for controlling a cryogenic refrigeration system'19914,966,016'Cryopump with multiple refrigerators'19904,949,546'Compact heat exchanger for a cryogenic refrigerator'19904,796,433'Remote recondenser with intermediate temperature heat sink'19894,766,741'Cryogenic recondenser with remote cold box'19884,679,401'Temperature control of cryogenic systems'19874,555,907'Cryopump with improved second stage array'19854,454,722'Cryopump'19844,449,373'Reduced vacuum cryopump'19844,446,702'Multiport cryopump'19844,438,632'Means for periodic desorption of a cryopump'19844,356,701'Cryopump'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–2006Patents assigned to HELIX TECH CORP (23)· patent assignee history
1982–2008Based in Milford, MA, US· patent location history
1990–2020Patents assigned to BARTLETT ALLEN J (10)· patent assignee history
1998–2006Based in Mendon, MA, US· patent location history
2006–2019Patents assigned to BROOKS AUTOMATION INC (17)· patent assignee history
2007Based in Mondon, MA, US· patent location history
2010–2021Based in New London, NH, US· patent location history
2011–2020Patents assigned to EACOBACCI JR MICHAEL J (4)· patent assignee history
2016–2020Patents assigned to CASELLO JOHN J (3)· patent assignee history
2016–2019Based in Uxbridge, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HELIX TECH CORP231982–2006
BROOKS AUTOMATION INC172006–2019
BARTLETT ALLEN Jself101990–2020
EACOBACCI JR MICHAEL J42011–2020
CASELLO JOHN J32016–2020
Locations
LocationPatentsSpan
Milford, Massachusetts, US231982–2008
New London, NH, US102010–2021
Uxbridge, Massachusetts, US62016–2019
Mendon, Massachusetts, US51998–2006
Mondon, Massachusetts, US12007