Inventor

ZHOU CHANGJUN

CN5 patents

⚠️ This page may combine multiple inventors who share the name “ZHOU CHANGJUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUPERIOR GRAPHITE CO

3 patents

US8617309B1Dec 31, 2013

ZHOU CHANGJUN

1 patent

US9458703B2Oct 4, 2016

Compressible carbonaceous particulate material and method of making same

ZHOU CHANGJUN2 citations54

CHANGCHUN INST OF BIOLOG PRODU

1 patent

US7579003B2Aug 25, 2009

HBsAg-BCG combined vaccine for intracutaneous injection and preparation method thereof

CHANGCHUN INST OF BIOLOG PRODU2 citations51

ZHOU CHANGJUN

SUPERIOR GRAPHITE CO

Cement compositions including resilient graphitic carbon fraction

Wellbore fluid testing assembly

Drilling fluid additive for loss circulation and wellbore strengthening

ZHOU CHANGJUN

Compressible carbonaceous particulate material and method of making same

CHANGCHUN INST OF BIOLOG PRODU

HBsAg-BCG combined vaccine for intracutaneous injection and preparation method thereof