Inventor

Ji Sun Lee

Inventor

Daejeon, KR

Overview

2011–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 37 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary

C07DHeterocyclic compounds11%

A61KPreparations for medical, dental or toiletry purposes10%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations10%

C07CAcyclic or carbocyclic compounds9%

C12NMicroorganisms or enzymes9%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture9%

C07KPeptides4%

C12YEnzymes4%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices3%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h103%

PatentTitleYear

11,002,515Intelligent artillery fire supporting device and operation method thereof2021 10,875,431Lumbar support apparatus for vehicle seat2020 10,795,554Method of operating terminal for instant messaging service2020 10,760,108Modified RNA polymerase sigma factor 70 polypeptide2020 10,662,450Aspartokinase variant and method for producing L-amino acid using the same2020 10,626,085Biguanide compound and use thereof2020 10,590,081Guanidine compounds and use thereof2020 10,376,480Biguanide derivative, a preparation method thereof, and a pharmaceutical composition containing the biguanide derivative as an active ingredient2019 10,377,542Heat-resistant receptacle cap2019 10,252,996N1-cyclic amine-N5-substituted biguanide derivatives, methods of preparing the same and pharmaceutical composition comprising the same2019 10,221,190Biguanide compounds and use thereof2019 10,202,609Microorganisms producing L-amino acids and process for producing L-amino acids using the same2019 10,113,191Microorganisms having enhanced L-amino acids productivity and process for producing L-amino acids using the same2018 10,058,558Pharmaceutical composition comprising N1-cyclic amine-N5-substituted biguanide derivatives as an ingredient for preventing or treating fibrosis2018 10,053,698Recombinant microorganisms of 2018 9,993,446Biguanide derivative, a preparation method thereof, and a pharmaceutical composition containing the biguanide derivative as an active ingredient2018 9,996,009Extreme ultraviolet (EUV) exposure system and method of manufacturing semiconductor device using the same2018 9,884,821'N1-cyclic amine-N5-substituted biguanide derivatives, methods of preparing the same and pharmaceutical composition comprising the same'2018 9,758,772'L-threonine-producing microorganism and production method for L-threonine using the same'2017 9,540,325'N1-cyclic amine-N5-substituted phenyl biguanide derivatives, methods of preparing the same and pharmaceutical composition comprising the same'2017 9,464,042'Biguanide derivative, preparation method thereof, and pharmaceutical composition containing same as an active ingredient'2016 9,416,098'Biguanide derivative, a preparation method thereof and a pharmaceutical composition containing the biguanide derivative as an active ingredient'2016 9,367,534'Mobile terminal and method for controlling the same'2016 9,321,742'N1-cyclic amine-N5-substituted biguanide derivatives, methods of preparing the same and pharmaceutical composition comprising the same'2016 9,302,258'Complex comprising crystalline hybrid nanoporous material powder'2016 9,247,142'Method and apparatus for providing the operation state of an external device'2016 9,133,110'Biguanide derivative, preparation method thereof, and pharmaceutical composition containing same as an active ingredient'2015 9,038,409'Apparatus for treating air by using porous organic-inorganic hybrid materials as an absorbent'2015 8,945,907'Genetically engineered recombinant Escherichia coli producing L-tryptophan having originally L-phenylalanine productivity, and method for producing L-tryptophan using the microorganism'2015 8,574,435'Advanced treatment system of wastewater having plasma discharging vessel'2013 8,569,066'Genetically engineered recombinant Escherichia coli producing L-tryptophan having originally L-phenylalanine productivity, and method for producing L-tryptophan using the microorganism'2013 8,486,670'Method of producing L-threonine using Escherichia coli strain with phosphoenolpyruvate carboxylase promoter replaced with cysteine synthase promoter'2013 8,455,237'Escherichia coli strain with phosphoenolpyruvate carboxylase promoter replaced with cysteine synthase promoter and method of enhanced production of L-threonine using the same'2013 8,173,546'Etchant composition, patterning conductive layer and manufacturing flat panel, display device using the same'2012 8,163,095'Composition for stripping and stripping method'2012 7,985,982'Etchant composition, patterning conductive layer and manufacturing flat panel, display device using the same'2011 7,968,507'Composition for stripping and stripping method'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011–2018Patents assigned to SAMSUNG ELECTRONICS CO LTD (5)· patent assignee history

2011–2012Based in Cheonan-si, KR· patent location history

2012–2017Patents assigned to LEE JI SUN (12)· patent assignee history

2013–2020Patents assigned to CJ CHEILJEDANG CORP (9)· patent assignee history

2013–2020Based in Incheon, KR· patent location history

2015–2017Patents assigned to KIM DUCK (4)· patent assignee history

2015–2020Based in Daejeon, KR· patent location history

2016–2020Patents assigned to IMMUNOMET THERAPEUTICS INC (12)· patent assignee history

2016Based in Seoul, KR· patent location history

2018–2019Based in Gyeonggi-do, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
IMMUNOMET THERAPEUTICS INC	12	2016–2020
LEE JI SUNself	12	2012–2017
CJ CHEILJEDANG CORP	9	2013–2020
SAMSUNG ELECTRONICS CO LTD	5	2011–2018
KIM DUCK	4	2015–2017

Locations

Location	Patents	Span
Daejeon, KR	13	2015–2020
Incheon, KR	9	2013–2020
Cheonan-si, KR	3	2011–2012
Gyeonggi-do, KR	2	2018–2019
Seoul, KR	2	2016