Ahn; Chang-sup

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ahn; Chang-sup.The latest application filed is for "device and method for verifying application".

Company Profile

2.7.15

Ahn; Chang-sup - Seoul KR
- Seoul KR
AHN; Chang-sup - Suwon-si KR
Ahn, Chang-Sup - Daegu 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
Device and method for verifying application Grant 11,281,778 - Kim , et al. March 22, 2	2022-03-22
Device And Method For Verifying Application App 20210216635 - KIM; Dong-uk ; et al.	2021-07-15
Electronic device and method of controlling same Grant 10,565,368 - Kwag , et al. Feb	2020-02-18
Electronic device and method of controlling same Grant 10509902 -	2019-12-17
Electronic Device And Method Of Controlling Same App 20180196937 - KWAG; Kyung-soo ; et al.	2018-07-12
Method of encrypting and storing digital content using firmware regional code and apparatus therefor Grant 8,402,285 - Kim , et al. March 19, 2	2013-03-19
Transport stream structure of image data having additional information inserted, and method and apparatus for transmission and reception thereof Grant 8,300,959 - Ahn , et al. October 30, 2	2012-10-30
Method and apparatus for forbidding use of digital content against copy control information Grant 8,234,718 - Kim , et al. July 31, 2	2012-07-31
Method of managing and restoring identifier of storage device and apparatus therefor Grant 8,015,342 - Ahn , et al. September 6, 2	2011-09-06
Method And Apparatus For Limiting Operation Of Digital Rights Management Module App 20100218234 - LEE; Ki-hun ; et al.	2010-08-26
Virtual System And Method Of Restricting Use Of Contents In The Virtual System App 20090293058 - AHN; Chang-sup ; et al.	2009-11-26
Ce Device Management Server, Method Of Issuing Drm Key By Using Ce Device Management Server, And Computer Readable Recording Medium App 20090199303 - AHN; Chang-sup ; et al.	2009-08-06
Method And Apparatus For Storing Digital Content In Storage Device App 20090052670 - YOU; Yong-kuk ; et al.	2009-02-26
Method And Apparatus For Forbidding Use Of Digital Content Against Copy Control Information App 20090037748 - KIM; Bong-seon ; et al.	2009-02-05
Method And Apparatus For Managing Client Revocation List App 20090038007 - AHN; Chang-sup ; et al.	2009-02-05
Method Of Managing And Restoring Identifier Of Storage Device And Apparatus Therefor App 20090037642 - Ahn; Chang-sup ; et al.	2009-02-05
Method Of Encrypting And Storing Digital Content Using Firmware Regional Code And Apparatus Therefor App 20080301472 - KIM; Bong-seon ; et al.	2008-12-04
Transport Stream Structure Of Image Data Having Additional Information Inserted, And Method And Apparatus For Transmission And Reception Thereof App 20080279464 - AHN; Chang-sup ; et al.	2008-11-13
Method And Apparatus For Protecting Digital Content Stored In Usb Mass Storage Device Using Time Information App 20080247546 - KIM; Bong-seon ; et al.	2008-10-09
Method And Apparatus For Protecting Digital Contents Stored In Usb Mass Storage Device App 20080247540 - Ahn; Chang-sup ; et al.	2008-10-09
Information recording medium, apparatus and method of reproducing contents App 20080077913 - Ahn; Chang-sup ; et al.	2008-03-27
Portable electronic signal light with power self-generator App 20040062039 - Ahn, Chang-Sup	2004-04-01

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.