Inventor

Gaoyin ZHANG

Inventor

Overview

2→

Patents

2022–2023

Patent span

Chemistry

Primary field (CPC C)

Patents· 2 as inventor

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

C04Bprimary

C04BLime, magnesia25%

C09KMaterials for miscellaneous applications, not provided for elsewhere25%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium13%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds13%

E21BEarth or rock drilling13%

Y02WClimate change mitigation technologies related to wastewater treatment or waste management13%

PatentTitleYear

11,603,488Process for preparing metal-chelate retarder by sol-gel method2023 11,345,844Oil well cement slurry high-temperature suspension stabilizer prepared from oil-based shale drilling cuttings2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2023Patents assigned to UNIV SOUTHWEST PETROLEUM (2)· patent assignee history

2022Patents assigned to SOUTHWEST PETROLEUM UNIV ENVIORMENTAL PROTECTION TECHNOLOGY CHENGDU CO LTD (1)· patent assignee history

2022Patents assigned to SOUTHWEST PETROLEUM UNIV ENVIRONMENTAL PROTECTION TECHNOLOGY CHENGDU CO LTD (1)· patent assignee history

2022–2023Based in CN· patent location history

2023Patents assigned to CNPC BOHAI DRILLING ENG CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNIV SOUTHWEST PETROLEUM	2	2022–2023
CNPC BOHAI DRILLING ENG CO LTD	1	2023
SOUTHWEST PETROLEUM UNIV ENVIORMENTAL PROTECTION TECHNOLOGY CHENGDU CO LTD	1	2022
SOUTHWEST PETROLEUM UNIV ENVIRONMENTAL PROTECTION TECHNOLOGY CHENGDU CO LTD	1	2022

Locations

Location	Patents	Span
CN	2	2022–2023