Inventor
Joseph Drennan
Inventor
Winooski, VT, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B08Bprimary
B08BCleaning in general43%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy29%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1014%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
7,531,059'Cleaning of semiconductor wafers by contaminate encapsulation'20096,939,408'Method for surface preparation of workpieces utilizing fluid separation techniques'20056,808,847'Alkaline cell with improved cathode including copper hydroxide and a sulfur additive'20046,776,171'Cleaning of semiconductor wafers by contaminate encapsulation'20046,730,436'Alkaline cell with improved cathode'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2009Patents assigned to IBM (3)· patent assignee history
2004Patents assigned to GILLETTE CO (2)· patent assignee history
2004–2009Based in Winooski, VT, US· patent location history
2004Based in Derby, CT, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 3 | 2004–2009 |
| GILLETTE CO | 2 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Winooski, VT, US | 3 | 2004–2009 |
| Derby, CT, US | 2 | 2004 |