Inventor
Chulwoo Oh
Inventor
Cedar Park, TX, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein44%
G02BOptical elements, systems or apparatus31%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices6%
G06FElectric digital data processing6%
H04NPictorial communication, e.g. television6%
PatentTitleYear
10,782,582Variable-focus virtual image devices based on polarization conversion202010,698,216Multilayer liquid crystal diffractive gratings for redirecting light of wide incident angle ranges202010,627,677Patterning of liquid crystals using soft-imprint replication of surface alignment patterns202010,466,561Diffractive devices based on cholesteric liquid crystal20199,195,092'Polarization-independent liquid crystal display devices including multiple polarizing grating arrangements and related devices'20159,122,169'Mask layout patterns for closely spaced primitives in phase shift photolithography masks'20158,982,313'Beam steering devices including stacked liquid crystal polarization gratings and related methods of operation'20158,537,310'Polarization-independent liquid crystal display devices including multiple polarization grating arrangements and related devices'20138,520,170'Low-twist chiral optical layers and related fabrication methods'20138,339,566'Low-twist chiral liquid crystal polarization gratings and related fabrication methods'20128,305,523'Multi-layer achromatic liquid crystal polarization gratings and related fabrication methods'2012Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2012–2015Patents assigned to UNIV NORTH CAROLINA STATE (6)· patent assignee history
2012–2015Patents assigned to OH CHULWOO (5)· patent assignee history
2012–2013Patents assigned to ESCUTI MICHAEL JAMES (3)· patent assignee history
2012–2013Patents assigned to KOMANDURI RAVI (2)· patent assignee history
2012–2015Based in Los Angeles, CA, US· patent location history
2013–2015Patents assigned to KIM JIHWAN (2)· patent assignee history
2013–2015Based in Hillsboro, OR, US· patent location history
2019–2020Based in Cedar Park, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV NORTH CAROLINA STATE | 6 | 2012–2015 |
| OH CHULWOOself | 5 | 2012–2015 |
| ESCUTI MICHAEL JAMES | 3 | 2012–2013 |
| KIM JIHWAN | 2 | 2013–2015 |
| KOMANDURI RAVI | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cedar Park, Texas, US | 4 | 2019–2020 |
| Los Angeles, California, US | 4 | 2012–2015 |
| Hillsboro, OR, US | 3 | 2013–2015 |