Inventor
Geun Sig Cha
Inventor
Seoul, KR
Overview
Patents· 42 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties39%
A61BDiagnosis14%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms13%
B01LChemical or physical laboratory apparatus for general use9%
Y10TTechnical subjects covered by former us classification4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
C07CAcyclic or carbocyclic compounds2%
A43BCharacteristic features of footwear1%
A61JContainers specially adapted for medical or pharmaceutical purposes1%
A61KPreparations for medical, dental or toiletry purposes1%
PatentTitleYear
10,969,378Strip ejection apparatus for blood glucose meter202110,690,619Apparatus and method for measuring concentration of an analyte in whole blood samples202010,371,693Portable blood glucose measurement device201910,125,384Reagent composition for redox reaction201810,024,816Personal blood glucose meter and abnormal measurement detection method using same201810,000,785Composition of redox-reagents for electrochemical biosensor and biosensor comprising the same20189,753,004'Electrochemical biosensor with improved accuracy'20179,702,842'Amperometric sensors and devices for measuring concentration of S-nitrosothiols based on photo-induced decomposition of S-nitrosothiols'20179,512,458'Electrochemical biosensor with sample introduction channel capable of uniform introduction of small amount of sample'20169,500,646'Sensor cartridge for detecting component of at least one sample'20169,435,792'Hemolysis reagent composition for hemoglobin A1C quantitative analysis using enzymatic method'20169,351,678'Lancet holder and lancet device including the same'20169,316,655'Biochemical analysis cartridge having improved operability'20169,192,331'Releasing structure for lancing device'20159,143,250'Blood glucose monitoring system having wireless communication module to which time synchronization method is applied'20158,940,233'Cartridge for apparatus for chemically analyzing blood and apparatus using the same'20158,475,744'Solution bag for apparatus for chemically analyzing blood'20138,377,272'Electrochemical biosensor measuring system'20138,337,683'Microfluidic sensor complex structure'20128,338,183'Electrochemical determination system of glycated proteins'20128,314,613'Electrochemical biosensor measuring system'20128,277,635'Electrochemical biosensor measuring system'20128,226,004'Biosensor measuring apparatus and a method thereof'20127,704,747'Dual blood glucose meter'20107,695,608'Electrochemical biosensor and biosensor measuring device'20107,662,111'Vacuum assisted auto-lancing device'20107,455,756'Biosensor'20087,288,174'Electrochemical biosensor'20077,133,712'Method and apparatus for non-invasive monitoring of blood substances using self-sampled tears'20066,964,734'Planar reference electrode'20056,793,789'Reference electrode with a polymeric reference electrode membrane'20046,746,583'Microchip-based carbon dioxide gas sensor'20046,726,818'Biosensors with porous chromatographic membranes'20046,663,756'Microchip-type oxygen gas sensor based on differential potentiometry'20036,554,982'Miniaturized solid-state reference electrode with self-diagnostic function'20036,509,148'Method for fabricating biosensors using hydrophilic polyurethane'20036,350,524'Hydrophilic polyurethane-coated chloride-selective electrodes'20026,210,907'Measuring device with electrodes fabricated on porous membrane substrate in whole'20016,177,417'Cholanic acid ring based 4-(trifluoroacetyl)phenyl derivatives, process for preparation and use thereof'20015,531,870'Potentiometric ion determinations using enhanced selectivity asymmetric ion-selective membranes'19965,417,835'Solid state ion sensor with polyimide membrane'19955,102,526'Solid state ion sensor with silicon membrane'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–1995Based in Ann Arbor, MI, US· patent location history
1996Based in Seodaemun-Ku, KR· patent location history
2001–2018Patents assigned to CHA GEUN SIG (16)· patent assignee history
2001–2021Based in Seoul, KR· patent location history
2003–2021Patents assigned to I SENS INC (25)· patent assignee history
2010–2016Patents assigned to CUI GANG (7)· patent assignee history
2010Based in Seodaemun-gu, KR· patent location history
2012–2018Patents assigned to NAM HAKHYUN (13)· patent assignee history
2016–2017Patents assigned to I-SENS INC (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| I SENS INC | 25 | 2003–2021 |
| CHA GEUN SIGself | 16 | 2001–2018 |
| NAM HAKHYUN | 13 | 2012–2018 |
| CUI GANG | 7 | 2010–2016 |
| I-SENS INC | 5 | 2016–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seoul, KR | 38 | 2001–2021 |
| Ann Arbor, MI, US | 2 | 1992–1995 |
| Seodaemun-gu, KR | 1 | 2010 |
| Seodaemun-Ku, KR | 1 | 1996 |