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Inventor

Haiju Li

Inventor
Campbell, CA, US

Overview

5→
Patents
2014–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H05Bprimary
H05BElectric heating45%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications36%
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 systems18%
PatentTitleYear
10,624,162Improving THD for a direct AC LED lighting device202010,405,392Dimmer multi-fire to increase direct AC LED device efficiency201910,292,226Reducing jitter in a direct AC LED lighting device20199,629,207'Solid state lamp control'20178,723,437'Filter bandwidth adjustment in a multi-loop dimmer control circuit'2014

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2020Patents assigned to DIALOG SEMICONDUCTOR INC (5)· patent assignee history
2014Patents assigned to IWATT INC (1)· patent assignee history
2014–2017Based in Fremont, CA, US· patent location history
2019–2020Based in Campbell, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DIALOG SEMICONDUCTOR INC52014–2020
IWATT INC12014
Locations
LocationPatentsSpan
Campbell, California, US32019–2020
Fremont, California, US22014–2017