Keith Johnston — 16 Patents at Sunpower

Keith Johnston has been granted 16 US patents while listed as an inventor at Sunpower. The first was granted in 1991 and the most recent in February 2024. Keith Johnston ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list Keith Johnston in Palo Alto, CA, US.

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
11894805	Device for reducing the open circuit voltage of a solar system	Steven M. Kraft, Kevin C. Fischer, Greg Beardsworth, Zachary S. Judkins	2024-02-06	$210,570,000
9927827	Electrical independence of tracker rows	Nicholas Ford	2018-03-27	$5,188,000
9923374	Photovoltaic systems with local maximum power point tracking prevention and methods for operating same	Zachary S. Judkins	2018-03-20	$5,046,000
9735729	Circuits and methods for limiting open circuit voltage of photovoltaic strings	Zachary S. Judkins	2017-08-15	$4,794,000
9710005	Parallel bus	Nicholas Ford	2017-07-18	$23,838,000
9685573	Diode and heat spreader for solar module	Ryan Linderman, Lewis Abra, Matthew Dawson	2017-06-20	$9,131,000
9537036	Interconnect for an optoelectronic device	Ryan Linderman, Thomas Phu, Matthew Dawson	2017-01-03	$3,590,000
9472691	Device for shunting current from photovoltaic circuit near the open circuit voltage and/or disconnecting solar module of a solar system	Steven M. Kraft, Kevin C. Fischer, Greg Beardsworth, Zachary S. Judkins	2016-10-18	$18,056,000
9397611	Photovoltaic systems with local maximum power point tracking prevention and methods for operating same	Zachary S. Judkins	2016-07-19	$6,686,000
9190839	Circuits and methods for limiting open circuit voltage of photovoltaic strings	Zachary S. Judkins	2015-11-17	$15,290,000
8809671	Optoelectronic device with bypass diode	Ryan Linderman, Doug Rose, Nicholas Boitnott, David DeGraaff	2014-08-19	$52,726,000
8786095	Interconnect for an optoelectronic device	Ryan Linderman, Thomas Phu, Matthew Dawson	2014-07-22	$14,538,000
8630077	Circuits and methods for limiting open circuit voltage of photovoltaic strings	Zachary S. Judkins	2014-01-14	$34,569,000
8563849	Diode and heat spreader for solar module	Ryan Linderman, Lewis Abra, Matthew Dawson	2013-10-22	$82,934,000
8426974	Interconnect for an optoelectronic device	Ryan Linderman, Thomas Phu, Matthew Dawson	2013-04-23	$13,732,000
5050826	Body support apparatus	—	1991-09-24

Keith Johnston — 16 Patents

Issued Patents All Time

Patent Widget