Inventor
Haoran Zhang
Inventor
Tucson, AZ, US
Overview
Patents· 9 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 systems20%
G11CStatic stores10%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%
E04HBuildings or like structures for particular purposes5%
F21KNon-electric light sources using luminescence5%
F21VFunctional features or details of lighting devices or systems thereof5%
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 emitted5%
F24SSolar heat collectors5%
G05FSystems for regulating electric or magnetic variables5%
G08BSignalling systems, e.g. personal calling systems5%
PatentTitleYear
10,502,456Efficient solar flat plate heat absorption system and operation method thereof201910,436,393Lighting device and luminaire comprising the same201910,020,776Monitoring system and monitoring method20187,391,262'Circuit and method for driving bulk capacitance of amplifier input transistors'20086,794,923'Low ripple charge pump for charging parasitic capacitances'20046,703,816'Composite loop compensation for low drop-out regulator'20046,661,683'Charge pump having very low voltage ripple'20036,618,296'Charge pump with controlled charge current'20036,445,623'Charge pumps with current sources for regulation'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2008Patents assigned to TEXAS INSTRUMENTS INC (6)· patent assignee history
2002–2008Based in Tucson, AZ, US· patent location history
2004Based in Tuscon, AZ, US· patent location history
2018–2019Patents assigned to HENAN SHUIMU ENVIRONMENTAL TECH CO LTD (2)· patent assignee history
2018Based in Zhengzhou, CN· patent location history
2019Patents assigned to SIGNIFY HOLDING BV (1)· patent assignee history
2019Based in Henan, CN· patent location history
2019Based in Eindhoven, NL· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TEXAS INSTRUMENTS INC | 6 | 2002–2008 |
| HENAN SHUIMU ENVIRONMENTAL TECH CO LTD | 2 | 2018–2019 |
| SIGNIFY HOLDING BV | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tucson, AZ, US | 5 | 2002–2008 |
| Henan, CN | 1 | 2019 |
| Eindhoven, NL | 1 | 2019 |
| Zhengzhou, CN | 1 | 2018 |
| Tuscon, AZ, US | 1 | 2004 |