Inventor
James Borthwick
Inventor
Santa Clara, CA, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables33%
F21SNon-portable lighting devices7%
F21VFunctional features or details of lighting devices or systems thereof7%
F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems7%
G05FSystems for regulating electric or magnetic variables7%
H01CResistors7%
H01RElectrically-conductive connections7%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines7%
H03FAmplifiers7%
H03KPulse technique7%
PatentTitleYear
10,916,905External electrical power distribution apparatus202110,690,715Signal distribution apparatus20209,772,351'Pulsed current source with internal impedance matching'20177,812,589'Modified current source (MCS) with seamless range switching'20107,151,389'Dual channel source measurement unit for semiconductor device testing'20067,098,648'Automatic range finder for electric current testing'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2020Patents assigned to QUALITAU INC (5)· patent assignee history
2006–2010Based in Sunnyvale, CA, US· patent location history
2017–2021Based in Santa Clara, CA, US· patent location history
2021Patents assigned to BORTHWICK JAMES ARTHUR (1)· patent assignee history
2021Patents assigned to CHAVEZ JOSE ANTONIO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| QUALITAU INC | 5 | 2006–2020 |
| BORTHWICK JAMES ARTHURself | 1 | 2021 |
| CHAVEZ JOSE ANTONIO | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Santa Clara, California, US | 3 | 2017–2021 |
| Sunnyvale, California, US | 3 | 2006–2010 |