James T. Walker — 26 Patents at Supertex

James T. Walker has been granted 26 US patents while listed as an inventor at Supertex. The first was granted in 1990 and the most recent in September 2021. James T. Walker ranks #150,017 of 4,157,543 US inventors in our database (top 3.6%). Patent records list James T. Walker in Palo Alto, CA, US.

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
D932065	Jar	Alex Mecker	2021-09-28
D931503	Jar	Alex Mecker	2021-09-21
D931504	Jar	Alex Mecker	2021-09-21
10039851	Wax melt system	Sandra D. Tschantz	2018-08-07
9837889	Power converter with inductance invariance	—	2017-12-05	$94,704,000
9621149	Bootstrapped switch with a highly linearized resistance	Benedict C. K. Choy, Ming-Yuan Yeh	2017-04-11	$26,165,000
9246378	Method and apparatus for extending the power output range of a power converter used for a lighting system	—	2016-01-26
9143131	Field-programmable gate array	Martin Trefzer, Andrew Tyrrell	2015-09-22
9100008	Bootstrapped switch with a highly linearized resistance	Benedict C. K. Choy, Ming-Yuan Yeh	2015-08-04	$44,407,000
8963430	Circuit for detection and control of LED string operation	—	2015-02-24	$16,408,000
8558598	Phase shift generating circuit	Andrew Read	2013-10-15	$1,965,000
8154898	Current driven bipolar high voltage driver for capacitive loads	—	2012-04-10	$1,326,000
7659756	MOSFET transistor amplifier with controlled output current	—	2010-02-09	$2,894,000
7564263	High-speed logic signal level shifter	Jimes Lei	2009-07-21	$2,742,000
7554378	Fast DC coupled level translator	—	2009-06-30	$1,615,000
7538581	Fast AC coupled level translator	—	2009-05-26	$2,933,000
7480191	High speed logic level shifter	Jimes Lei	2009-01-20	$3,011,000
D517770	Safe	—	2006-03-21
D517269	Safe	—	2006-03-14
D516768	Safe	—	2006-03-07
D516769	Safe	—	2006-03-07
6841950	Dimmable electrolumanescent lamp drivers and method therefor	—	2005-01-11	$2,758,000
6304461	DC power converter having bipolar output and bi-directional reactive current transfer	—	2001-10-16	$4,094,000
5667305	Low force high pressure port	—	1997-09-16	$41,923,000
5582446	Door stabilizer clip	—	1996-12-10

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James T. Walker — 26 Patents

Issued Patents All Time

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