Inventor
Wai To Yan
Inventor
N.T., HK
Overview
Patents· 7 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 systems31%
LOC2615%
F21SNon-portable lighting devices8%
F21VFunctional features or details of lighting devices or systems thereof8%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted8%
G05FSystems for regulating electric or magnetic variables8%
H03KPulse technique8%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
10,848,066Controller for a DC/DC converter202010,451,253Troffer-style fixture with LED strips2019D0807556'Troffer-style fixture'2018D0772465'Troffer-style fixture'20168,264,270'Method and apparatus to provide active cancellation of the effects of the parasitic elements in capacitors'20128,169,201'Output compensator for a regulator'20128,115,537'Method and apparatus for suppressing noise caused by parasitic capacitance and/or resistance in an electronic circuit or system'2012Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2012Patents assigned to CHUNG SHU HUNG HENRY (3)· patent assignee history
2012Patents assigned to UNIV CITY HONG KONG (3)· patent assignee history
2012Patents assigned to YAN WAI TO (3)· patent assignee history
2012Based in Hong Kong, CN· patent location history
2012Based in Taipo, HK· patent location history
2012Based in New Territories, HK· patent location history
2016–2019Patents assigned to CREE HONG KONG LTD (3)· patent assignee history
2016–2019Based in N.T., HK· patent location history
2020Patents assigned to HONG KONG APPLIED SCIENCE & TECH RESEARCH INST CO LTD (1)· patent assignee history
2020Based in Tai Po, HK· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHUNG SHU HUNG HENRY | 3 | 2012 |
| CREE HONG KONG LTD | 3 | 2016–2019 |
| UNIV CITY HONG KONG | 3 | 2012 |
| YAN WAI TOself | 3 | 2012 |
| HONG KONG APPLIED SCIENCE & TECH RESEARCH INST CO LTD | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| N.T., HK | 3 | 2016–2019 |
| Tai Po, HK | 1 | 2020 |
| Hong Kong, CN | 1 | 2012 |
| Taipo, HK | 1 | 2012 |
| New Territories, HK | 1 | 2012 |