Inventor

Dong Kyu Cha

Inventor
Abqaiq, SA

Overview

4→
Patents
2019–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

G03Fprimary
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices18%
B81BMicrostructural devices or systems, e.g. micromechanical devices9%
B81CProcesses or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems9%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds9%
C09KMaterials for miscellaneous applications, not provided for elsewhere9%
C23CCoating metallic material9%
E21BEarth or rock drilling9%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
H01JElectric discharge tubes or discharge lamps9%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h109%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019–2021Patents assigned to SAUDI ARABIAN OIL CO (4)· patent assignee history
2019–2021Based in Abqaiq, SA· patent location history
2019Based in Dhahran, SA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAUDI ARABIAN OIL CO42019–2021
Locations
LocationPatentsSpan
Abqaiq, SA32019–2021
Dhahran, SA12019