Lee; Chang-hum

Patent Applications and Registrations

Patent applications and USPTO patent grants for Lee; Chang-hum.The latest application filed is for "apparatus and method to charge a battery".

Company Profile

0.12.3

Lee; Chang-hum - Anyang-si N/A KR
Lee; Chang-Hum - Anyang KR
Lee, Chang-Hum - Anyang city KR
Lee, Chang-Hum - Kyunggi-do KR
Lee; Chang-Hum - Anyang-shi KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Apparatus and method to charge a battery Grant 8,970,181 - Lee , et al. March 3, 2	2015-03-03
Apparatus And Method To Charge A Battery App 20120019197 - LEE; Chang-hum ; et al.	2012-01-26
Portable computer system and controlling method thereof Grant 6,963,329 - Lee November 8, 2	2005-11-08
Portable computer system and controlling method thereof App 20030016204 - Lee, Chang-Hum	2003-01-23
Device and method for displaying charge capacity information of smart battery Grant 6,483,274 - Lee November 19, 2	2002-11-19
Device And Method For Displaying Charge Capacity Information Of Smart Battery App 20020113575 - Lee, Chang-Hum	2002-08-22
Monitoring technique for accurately determining residual capacity of a battery Grant 6,157,169 - Lee December 5, 2	2000-12-05
Battery powered electronic system with an improved power management Grant 6,075,345 - Lee June 13, 2	2000-06-13
Battery charging apparatus and method with charging mode convertible function Grant 5,994,875 - Lee November 30, 1	1999-11-30
Power supply system for portable electronic devices Grant 5,986,437 - Lee November 16, 1	1999-11-16
Rechargeable battery charging circuit Grant 5,900,717 - Lee May 4, 1	1999-05-04
Battery charging apparatus Grant 5,861,730 - Lee January 19, 1	1999-01-19
Circuit and a method for controlling a backlight of a liquid crystal display in a portable computer Grant 5,854,617 - Lee , et al. December 29, 1	1998-12-29
Lamp control circuit having a brightness condition controller having 2.sup. n .sup.rd and 4.sup.th current paths Grant 5,818,172 - Lee October 6, 1	1998-10-06

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