Inventor
Stephen Ulbrich
Inventor
Anaheim Hills, CA, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems38%
H03FAmplifiers23%
H02JElectric power networks15%
G05FSystems for regulating electric or magnetic variables8%
H10DInorganic electric semiconductor devices8%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications8%
PatentTitleYear
10,340,786High frequency wireless power rectifier startup circuit design20199,979,290Dual use bootstrap driver20189,899,908'High frequency wireless power rectifier startup circuit design'20189,136,764'Apparatuses and system and method for auto-configuration of a power control system'20159,112,410'Apparatuses and system having separate power control and timing control of a power control system and related method'20156,342,809'Closed loop circuit switch mode power amplifier'20025,592,123'Frequency stability bootstrapped current mirror'19974,659,979'High voltage current source circuit and method'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to BURR BROWN CORP (1)· patent assignee history
1987Based in Manitou Springs, CO, US· patent location history
1997–2015Based in Anaheim Hills, CA, US· patent location history
2015–2019Patents assigned to INTEGRATED DEVICE TECH (5)· patent assignee history
2015Patents assigned to KRELLNER JAN (2)· patent assignee history
2015Patents assigned to KWOK KENNETH (2)· patent assignee history
2015Patents assigned to ULBRICH STEPHEN (2)· patent assignee history
2018–2019Based in Anaheim, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| INTEGRATED DEVICE TECH | 5 | 2015–2019 |
| KRELLNER JAN | 2 | 2015 |
| KWOK KENNETH | 2 | 2015 |
| ULBRICH STEPHENself | 2 | 2015 |
| BURR BROWN CORP | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Anaheim Hills, California, US | 4 | 1997–2015 |
| Anaheim, California, US | 3 | 2018–2019 |
| Manitou Springs, CO, US | 1 | 1987 |