Inventor
Robert J. Lepofsky
Inventor
Wellesley, MA, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids36%
F04DNon-positive-displacement pumps25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
B01DSeparation7%
H05KPrinted circuits7%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%
PatentTitleYear
7,413,411'Electronically controlled vacuum pump'20086,902,378'Electronically controlled vacuum pump'20056,474,080'Cryopump system with modular electronics'20026,461,113'Electronically controlled vacuum pump'20026,318,091'Cryopump system with modular electronics'20016,022,195'Electronically controlled vacuum pump with control module'20005,443,368'Turbomolecular pump with valves and integrated electronic controls'19955,157,928'Electronically controlled cryopump'19924,918,930'Electronically controlled cryopump'19904,910,965'Means for periodic desorption of a cryopump'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2005Patents assigned to HELIX TECH CORP (9)· patent assignee history
1990–2008Based in Wellesley, MA, US· patent location history
2001–2002Based in Mansfield, MA, US· patent location history
2008Patents assigned to BROOKS AUTOMATION INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HELIX TECH CORP | 9 | 1990–2005 |
| BROOKS AUTOMATION INC | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wellesley, Massachusetts, US | 8 | 1990–2008 |
| Mansfield, Massachusetts, US | 2 | 2001–2002 |