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Inventor

Qifeng Zhou

Inventor
Beijing, CN

Overview

3→
Patents
2014–2017
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 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 therein27%
C09KMaterials for miscellaneous applications, not provided for elsewhere18%
G02BOptical elements, systems or apparatus18%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds9%
C08JWorking-up9%
C09DCoating compositions, e.g. paints, varnishes or lacquers9%
Y10TTechnical subjects covered by former us classification9%
PatentTitleYear
9,785,011'Liquid crystal display having improved wavelength dispersion characteristics'20179,096,719'Optical compensation films with mesogen groups for liquid crystal display'20158,821,994'Liquid crystal display having improved wavelength dispersion characteristics'2014

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2017Patents assigned to AKRON POLYMER SYSTEMS (3)· patent assignee history
2014–2015Patents assigned to GERMROTH TED CALVIN (2)· patent assignee history
2014–2015Patents assigned to HARRIS FRANK W (2)· patent assignee history
2014–2015Patents assigned to JING JIAOKAI ALEXANDER (2)· patent assignee history
2014–2015Patents assigned to KING BRIAN MICHAEL (2)· patent assignee history
2014–2017Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AKRON POLYMER SYSTEMS32014–2017
GERMROTH TED CALVIN22014–2015
HARRIS FRANK W22014–2015
JING JIAOKAI ALEXANDER22014–2015
KING BRIAN MICHAEL22014–2015
Locations
LocationPatentsSpan
Beijing, CN32014–2017