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Chang; Do-Il Patent Filings

Chang; Do-Il

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chang; Do-Il.The latest application filed is for "optical transmission system and related remote optically pumped amplifier (ropa) and method".

Company Profile
2.24.23
  • Chang; Do-Il - Allen TX
  • Chang; Do Il - Daejon-Shi KR
  • Chang; Do Il - Seoul KR
  • Chang; Do IL - Daejeon 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
PatentDate
Repeater OTDR using repeater based Raman pumps
Grant 10,516,477 - Webb , et al. Dec
2019-12-24
Optical transmission system and related remote optically pumped amplifier (ROPA) and method
Grant 10,313,020 - Chang , et al.
2019-06-04
Optical Transmission System And Related Remote Optically Pumped Amplifier (ropa) And Method
App 20180069637 - Chang; Do-Il ;   et al.
2018-03-08
Repeater Otdr Using Repeater Based Raman Pumps
App 20180062738 - Webb; Stephen Michael ;   et al.
2018-03-01
Multi-span Optical Communications Link Having Remote Optically Pumped Amplifier
App 20170365971 - PELOUCH; WAYNE S. ;   et al.
2017-12-21
Optical transmission system and related remote optically pumped amplifier (ROPA) and method
Grant 9,838,136 - Chang , et al. December 5, 2
2017-12-05
Repeater OTDR using repeater based raman pumps
Grant 9,831,943 - Webb , et al. November 28, 2
2017-11-28
Multi-span optical communications link having remote optically pumped amplifier
Grant 9,735,532 - Pelouch , et al. August 15, 2
2017-08-15
Tilt control through optical pump power adjustment
Grant 9,461,437 - Pelouch , et al. October 4, 2
2016-10-04
Optical Transmission System And Related Remote Optically Pumped Amplifier (ropa) And Method
App 20160261349 - Chang; Do-Il ;   et al.
2016-09-08
Multi-span Optical Communications Link Having Remote Optically Pumped Amplifier
App 20150270676 - PELOUCH; WAYNE S. ;   et al.
2015-09-24
Repeater Otdr Using Repeater Based Raman Pumps
App 20150171958 - Webb; Stephen Michael ;   et al.
2015-06-18
Tilt Control Through Optical Pump Power Adjustment
App 20140268308 - PELOUCH; WAYNE S. ;   et al.
2014-09-18
Introduction-side dispersion shifting of channels
Grant 8,380,069 - Pelouch , et al. February 19, 2
2013-02-19
Distinct dispersion compensation for coherent channels
Grant 8,380,068 - Chang , et al. February 19, 2
2013-02-19
Optical amplifier bandwidth alteration
Grant 8,233,216 - Chang , et al. July 31, 2
2012-07-31
Optical amplifier with Raman and rare-earth-doped fiber amplifier both pumped efficiently using direct and reflected pump light
Grant 8,228,598 - Chang , et al. July 24, 2
2012-07-24
Optical amplifier capable of amplifying optical signals that traverse separate transmission fibers
Grant 8,145,062 - Pelouch , et al. March 27, 2
2012-03-27
Optical communication using shared optical pumps
Grant 8,111,454 - Chang , et al. February 7, 2
2012-02-07
Submarine optical repeater
Grant 8,111,453 - Pelouch , et al. February 7, 2
2012-02-07
Introduction-side Dispersion Shifting Of Channels
App 20110097088 - Pelouch; Wayne S. ;   et al.
2011-04-28
Distinct Dispersion Compensation For Coherent Channels
App 20110097087 - Chang; DO-IL ;   et al.
2011-04-28
Remote larger effective area optical fiber
Grant 7,869,673 - Chang , et al. January 11, 2
2011-01-11
Submarine Optical Repeater
App 20100209110 - Pelouch; Wayne S. ;   et al.
2010-08-19
Optical Communication Using Shared Optical Pumps
App 20100209117 - Chang; Do-Il ;   et al.
2010-08-19
Optical Communication Using Coupled Optically Pumped Amplifiers
App 20100183305 - CHANG; DO-IL ;   et al.
2010-07-22
System and method for implementing a boosterless optical communication system
Grant 7,742,223 - Puc , et al. June 22, 2
2010-06-22
Fractional Raman Order Pumping In Optical Communication Systems
App 20100103957 - Fevrier; Herve A. ;   et al.
2010-04-29
Remote Larger Effective Area Optical Fiber
App 20100054660 - Chang; Do-IL ;   et al.
2010-03-04
System and method for implementing a high capacity unrepeatered optical communication system
Grant 7,665,909 - Perrier , et al. February 23, 2
2010-02-23
System and method for fractional Raman order pumping in optical communication systems
Grant 7,567,593 - Fevrier , et al. July 28, 2
2009-07-28
Efficient Discrete Amplification
App 20090174933 - Chang; Do-Il ;   et al.
2009-07-09
Optical Amplifier Bandwidth Alteration
App 20090174932 - Chang; Do-IL ;   et al.
2009-07-09
Optical Amplifier Capable Of Amplifying Optical Signals That Traverse Separate Transmission Fibers
App 20090175628 - Pelouch; Wayne S. ;   et al.
2009-07-09
System And Method For Implementing A High Capacity Unrepeatered Optical Communication System
App 20080145055 - Perrier; Philippe A. ;   et al.
2008-06-19
System and method for implementing a high capacity unrepeatered optical communication system
Grant 7,336,869 - Perrier , et al. February 26, 2
2008-02-26
System And Method For Implementing A High Capacity Unrepeatered Optical Communication System
App 20070274625 - Perrier; Philippe A. ;   et al.
2007-11-29
System and Method for Implementing a Boosterless Optical Communication System
App 20070223084 - Puc; Andrej B. ;   et al.
2007-09-27
System and method for fractional Raman order pumping in optical communication systems
App 20070002904 - Fevrier; Herve A. ;   et al.
2007-01-04
Apparatus for generating an optical fiber laser capable of tuning a wavelength thereof
Grant 6,556,596 - Kim , et al. April 29, 2
2003-04-29
Optical fiber cascaded Raman laser scheme
Grant 6,426,965 - Chang , et al. July 30, 2
2002-07-30
Dual wavelength optical fiber laser
App 20020080832 - Chang, Do-Il ;   et al.
2002-06-27
Optical fiber mode-locked laser
Grant 6,385,216 - Chang , et al. May 7, 2
2002-05-07
Optical device for generating a plurality of optical signals
App 20020001125 - Chang, Do-Il ;   et al.
2002-01-03
Optical fiber raman laser
Grant 6,163,554 - Chang , et al. December 19, 2
2000-12-19

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