CHOE; Joong-Seon

Patent Applications and Registrations

Patent applications and USPTO patent grants for CHOE; Joong-Seon.The latest application filed is for "quantum key distribution system and operation method thereof".

Company Profile

2.20.32

CHOE; Joong-Seon - Daejeon KR
CHOE; Joong-Seon - Daejeon-city KR
Choe; Joong Seon - Seoul KR
Choe; Joong Seon - Seo-gu 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
Quantum Key Distribution System And Operation Method Thereof App 20220141008 - LIM; Kyongchun ; et al.	2022-05-05
Light Modulation Device App 20220066245 - KIM; Kap-Joong ; et al.	2022-03-03
Quantum Information Transmitter, Quantum Communication System Including The Same, And Operating Method Of Quantum Information Transmitter App 20210306077 - LIM; Kyongchun ; et al.	2021-09-30
Waveguide Photodetector App 20210255385 - CHOE; Joong-Seon ; et al.	2021-08-19
Polarization Decomposition Device App 20190353918 - KIM; Kap-Joong ; et al.	2019-11-21
Polarization Splitting And Combining Apparatus App 20190162986 - Choe; Joong-Seon ; et al.	2019-05-30
Receiver optical module Grant 9,893,810 - Lee , et al. February 13, 2	2018-02-13
Blend prepared by mixing a prepolymer and a vinyl monomer and a polymer sheet obtained therefrom Grant 9,864,104 - Park , et al. January 9, 2	2018-01-09
Multiple output quantum random number generator Grant 9,710,231 - Youn , et al. July 18, 2	2017-07-18
Multiple Output Quantum Random Number Generator App 20160335054 - YOUN; Chun Ju ; et al.	2016-11-17
Receiver Optical Module App 20160336368 - LEE; Seo Young ; et al.	2016-11-17
Method and apparatus for transmitting and receiving coherent optical OFDM Grant 9,270,381 - Youn , et al. February 23, 2	2016-02-23
Compound Containing Crosslinkable Moieties, Prepolymer, Blend And Polymer Sheet Obtained Therefrom, And Waveguide For Optical Interconnection App 20160041306 - PARK; Seung Koo ; et al.	2016-02-11
Compound containing crosslinkable moieties, prepolymer, blend and polymer sheet obtained therefrom, and waveguide for optical interconnection Grant 9,201,169 - Park , et al. December 1, 2	2015-12-01
Apparatus and method for measuring IQ imbalance for optical receiver Grant 9,166,680 - Youn , et al. October 20, 2	2015-10-20
Measuring device and method of measuring signal transmission time difference thereof Grant 9,031,421 - Choe , et al. May 12, 2	2015-05-12
Apparatus for measuring performance of coherent optical receiver Grant 8,929,731 - Youn , et al. January 6, 2	2015-01-06
Compound containing crosslinkable moieties, prepolymer, blend and polymer sheet obtained therefrom, and waveguide for optical interconnection App 20140219625 - PARK; Seung Koo ; et al.	2014-08-07
Measuring Device And Method Of Measuring Signal Transmission Time Difference Thereof App 20140205280 - CHOE; Joong-Seon ; et al.	2014-07-24
Apparatus And Method For Measuring Iq Imbalance For Optical Receiver App 20140169786 - YOUN; Chun Ju ; et al.	2014-06-19
Prepolymer prepared by a condensation reaction and a polymer sheet obtained therefrom Grant 8,716,403 - Park , et al. May 6, 2	2014-05-06
Polarization division multiplexed optical orthogonal frequency division multiplexing transmitter and receiver Grant 8,693,459 - Youn , et al. April 8, 2	2014-04-08
Optical Orthogonal Frequency Division Multiple Multiplexing Receiver And Optical Signal Receiving Method Thereof App 20130308949 - YOUN; Chun Ju ; et al.	2013-11-21
Optical orthogonal frequency division multiplexing receiver and optical signal receiving method thereof Grant 8,521,040 - Youn , et al. August 27, 2	2013-08-27
Apparatus For Measuring Performance Of Coherent Optical Receiver App 20130156424 - YOUN; Chun Ju ; et al.	2013-06-20
Optical Communication Module And Method Of Manufacturing The Same App 20130156394 - CHOE; Joong-Seon ; et al.	2013-06-20
Core And Optical Waveguide App 20130156362 - KIM; Duk Jun ; et al.	2013-06-20
Adapter assembly and method for compensating optical fibers for length difference Grant 8,272,789 - Choe , et al. September 25, 2	2012-09-25
Light emitting device and optical coupling module Grant 8,244,079 - Kim , et al. August 14, 2	2012-08-14
Method And Apparatus For Transmitting And Receiving Coherent Optical Ofdm App 20120155887 - YOUN; Chun Ju ; et al.	2012-06-21
Optical Module Comprising Optical Hybrid Using Metal Optical Waveguide And Photo Detector App 20120132792 - Choe; Joong-Seon ; et al.	2012-05-31
Optical Waveguide Structure Having Angled Mirror And Lens App 20120114293 - Choe; Joong-Seon ; et al.	2012-05-10
Adapter Assembly And Method For Compensating Optical Fibers For Length Difference App 20110142398 - Choe; Joong-Seon ; et al.	2011-06-16
Optical Orthogonal Frequency Division Multiplexing Receiver And Optical Signal Receiving Method Thereof App 20110135319 - YOUN; Chun Ju ; et al.	2011-06-09
Polarization Division Multiplexed Optical Orthogonal Frequency Division Multiplexing Transmitter And Receiver App 20110096855 - YOUN; Chun Ju ; et al.	2011-04-28
Polarization Splitter, Optical Hybrid And Optical Receiver Including The Same App 20110064422 - Kim; Jong-Hoi ; et al.	2011-03-17
Compound Containing Crosslinkable Moieties, Prepolymer, Blend And Polymer Sheet Obtained Therefrom, And Waveguide For Optical Interconnection App 20100172623 - PARK; Seung Koo ; et al.	2010-07-08
Flexible Waveguide Structure And Optical Interconnection Assembly App 20100158445 - Kim; Min-Su ; et al.	2010-06-24
Light Emitting Device And Optical Coupling Module App 20100158440 - Kim; Jin-Tae ; et al.	2010-06-24
Enhanced coplanar waveguide and optical communication module using the same Grant 7,331,723 - Yoon , et al. February 19, 2	2008-02-19
Semiconductor optical modulator integrated resistor for impedance matching using semiconductor doped layer and method of fabricating the same Grant 7,324,258 - Kwon , et al. January 29, 2	2008-01-29
Enhanced coplanar waveguide and optical communication module using the same App 20070133933 - Yoon; Ho Gyeong ; et al.	2007-06-14
Semiconductor optical modulator integrated resistor for impedance matching using semiconductor doped layer and method of fabricating the same App 20060132884 - Kwon; Yong Hwan ; et al.	2006-06-22
Photodetector Grant 7,005,687 - Choe , et al. February 28, 2	2006-02-28
Photodetector App 20040118992 - Choe, Joong Seon ; et al.	2004-06-24
Spot size converter and method for manufacturing the same, and spot size converter integrated photodetector App 20040120648 - Kwon, Yong Hwan ; et al.	2004-06-24

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.