Inventor

Fenglian Chang

Inventor
Grand Blanc, MI, US

Overview

8→
Patents
2002–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 8 as inventor

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

C23Cprimary
C23CCoating metallic material33%
G01NInvestigating or analysing materials by determining their chemical or physical properties25%
E21BEarth or rock drilling17%
C09KMaterials for miscellaneous applications, not provided for elsewhere8%
C22CAlloys8%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2013Patents assigned to DELPHI TECH INC (6)· patent assignee history
2002–2013Based in Grand Blanc, MI, US· patent location history
2013Patents assigned to CHANG FENGLIAN (1)· patent assignee history
2013Patents assigned to KERR RICK D (1)· patent assignee history
2013Patents assigned to KRUSKE KERRY J (1)· patent assignee history
2021Patents assigned to SAUDI ARABIAN OIL CO (2)· patent assignee history
2021Based in Dhahran, SA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DELPHI TECH INC62002–2013
SAUDI ARABIAN OIL CO22021
CHANG FENGLIANself12013
KERR RICK D12013
KRUSKE KERRY J12013
Locations
LocationPatentsSpan
Grand Blanc, MI, US62002–2013
Dhahran, SA22021