Inventor
Daniel L. Callahan
Inventor
Nashua, NH, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Kprimary
H05KPrinted circuits31%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1023%
H01RElectrically-conductive connections15%
Y02PClimate change mitigation technologies in the production or processing of goods15%
G01NInvestigating or analysing materials by determining their chemical or physical properties8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
7,539,027'Force distributing spring element'20097,289,335'Force distributing spring element'20076,920,052'Dynamic isolating mount for processor packages'20056,884,101'Interposer one-step load and self-lock socket'20056,633,489'Dynamic isolating mount for processor packages'20036,002,259'Electrostatic adhesion tester for thin film conductors'19994,424,625'Connector removal tool'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984Patents assigned to SPERRY CORP (1)· patent assignee history
1984Based in Roseville, MN, US· patent location history
1999Patents assigned to RICE UNIVERSITY (1)· patent assignee history
1999Based in Dallas, TX, US· patent location history
2003–2009Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (5)· patent assignee history
2003–2009Based in Nashua, NH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HEWLETT PACKARD DEVELOPMENT CO | 5 | 2003–2009 |
| RICE UNIVERSITY | 1 | 1999 |
| SPERRY CORP | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nashua, NH, US | 5 | 2003–2009 |
| Dallas, Texas, US | 1 | 1999 |
| Roseville, Minnesota, US | 1 | 1984 |