Inventor
Lars Johnson
Inventor
Concord, CA, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y02Eprimary
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution17%
H02JElectric power networks15%
H02SGeneration of electric power by conversion of infrared radiation, visible light or ultraviolet light, e.g. using photovoltaic [pv] modules10%
Y10TTechnical subjects covered by former us classification10%
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 systems8%
H04LTransmission of digital information, e.g. telegraphic communication6%
G05BControl or regulating systems in general4%
G06FElectric digital data processing4%
G06TImage data processing or generation, in general4%
B62DMotor vehicles2%
PatentTitleYear
10,810,363Image annotations in collaborative content items202010,791,071File-level comments in collaborative content items202010,491,658In-collaborative content item notifications in shared collaborative content items201910,462,077File-level comments in collaborative content items201910,431,987Methods and systems for maintaining photovoltaic power plant reactive power capability201910,198,413Image annotations in collaborative content items20199,866,030'Automatic voltage regulation for photovoltaic systems'20189,806,665'Methods and apparatus for controlling operation of photovoltaic power plants'20179,680,301'Master-slave architecture for controlling operation of photovoltaic power plants'20179,300,224'Automatic voltage regulation for photovoltaic systems'20169,059,604'Methods and apparatus for controlling operation of photovoltaic power plants'20159,022,020'Linear Fresnel solar arrays and drives therefor'20158,922,062'Automatic voltage regulation for photovoltaic systems'20144,750,879'Bearing arrangement'19883,985,064'Device for displaceably supporting a load'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2015Patents assigned to JOHNSON LARS (4)· patent assignee history
1988Based in Kullavik, SE· patent location history
2014–2019Patents assigned to SUNPOWER CORP (7)· patent assignee history
2014–2018Based in Concord, CA, US· patent location history
2015Patents assigned to AREVA SOLAR INC (1)· patent assignee history
2015Patents assigned to DEGRAAFF DAVID B (1)· patent assignee history
2015Based in Mountain View, CA, US· patent location history
2019–2020Patents assigned to DROPBOX INC (5)· patent assignee history
2019–2020Based in San Francisco, CA, US· patent location history
2019Based in Holladay, UT, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUNPOWER CORP | 7 | 2014–2019 |
| DROPBOX INC | 5 | 2019–2020 |
| JOHNSON LARSself | 4 | 1976–2015 |
| AREVA SOLAR INC | 1 | 2015 |
| DEGRAAFF DAVID B | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Concord, California, US | 6 | 2014–2018 |
| San Francisco, California, US | 5 | 2019–2020 |
| Holladay, UT, US | 1 | 2019 |
| Mountain View, California, US | 1 | 2015 |
| Kullavik, SE | 1 | 1988 |