Inventor
Hyun Sung Lim
Inventor
Midlothian, VA, US
Overview
Patents· 35 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D04Hprimary
D04HMaking textile fabrics, e.g. from fibres or filamentary material20%
Y10TTechnical subjects covered by former us classification16%
B01DSeparation14%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form10%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons6%
A61FFilters implantable into blood vessels5%
B82YSpecific uses or applications of nanostructures2%
D21FPaper-making machines2%
PatentTitleYear
9,610,588'Electret nanofibrous web as air filtration media'20179,284,830'Method for recovering hydrocarbon fluids using a hydraulic fracturing process'20168,679,217'Pleated nanoweb structures'20148,636,833'Air filtration medium with improved dust loading capacity and improved resistance to high humidity environment'20148,512,432'Composite filter media'20138,361,180'Durable nanoweb scrim laminates'20138,308,834'Composite filter media'20128,282,712'Air filtration medium with improved dust loading capacity and improved resistance to high humidity environment'20128,187,354'Filtration media for filtering particulate material from gas streams'20128,092,566'Filtration media for filtering particulate material from gas streams'20127,927,540'Method of manufacturing a composite filter media'20117,922,959'Method of manufacturing a composite filter media'2011RE041539'Breathable composite sheet structure and absorbent articles utilizing same'20107,452,832'Full-surface bonded multiple component melt-spun nonwoven web'20087,307,031'Breathable composite sheet structure and absorbent articles utilizing same'20077,235,122'Filtration media for filtering particulate material from gas streams'20077,081,560'Absorbent articles utilizing breathable composite sheet'20066,989,194'Flame retardant fabric'20066,677,258'Breathable composite sheet structure and absorbent articles utilizing same'20046,410,465'Composite sheet material'20026,187,696'Breathable composite sheet structure'20016,070,635'Nonwoven sheet products made from plexifilamentary film fibril webs'20006,034,008'Flash-spun sheet material'20005,938,648'Absorbent articles exhibiting improved internal environmental conditions'19995,882,519'Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters'19995,863,639'Nonwoven sheet products made from plexifilamentary film fibril webs'19995,833,900'Process for modifying porosity in sheet made from flash spinning olefin polymer'19985,817,415'Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters'19985,780,153'Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters'19985,308,691'Controlled-porosity, calendered spunbonded/melt blown laminates'19945,290,628'Hydroentangled flash spun webs having controllable bulk and permeability'19945,013,599'Composite fibrous polyethylene sheet'19914,941,947'Composite fibrous polyethylene sheet'19904,652,322'Process for bonding and stretching nonwoven sheet'19874,639,205'Pump shaft stirrer for grid melter'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2017Patents assigned to DU PONT (28)· patent assignee history
1987–2001Based in Chesterfield, VA, US· patent location history
1987Based in Martinsville, VA, US· patent location history
1999–2010Patents assigned to PROCTER & GAMBLE (4)· patent assignee history
2000–2017Based in Midlothian, VA, US· patent location history
2012–2014Patents assigned to LIM HYUN SUNG (8)· patent assignee history
2012–2014Patents assigned to CHI CHENG-HANG (3)· patent assignee history
2012–2014Patents assigned to JONES DAVID CHARLES (3)· patent assignee history
2014Based in Milothian, VA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 28 | 1987–2017 |
| LIM HYUN SUNGself | 8 | 2012–2014 |
| PROCTER & GAMBLE | 4 | 1999–2010 |
| CHI CHENG-HANG | 3 | 2012–2014 |
| JONES DAVID CHARLES | 3 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Midlothian, Virginia, US | 20 | 2000–2017 |
| Chesterfield, Virginia, US | 13 | 1987–2001 |
| Milothian, Virginia, US | 1 | 2014 |
| Martinsville, Virginia, US | 1 | 1987 |