Inventor
ZHENG QINGJUN
US21 patents
⚠️ This page may combine multiple inventors who share the name “ZHENG QINGJUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KENNAMETAL INC
15 patentsUS10428406B2Oct 1, 2019
Wear resistant and corrosion resistant cobalt-based alloy powders and applications thereof
KENNAMETAL INC29 citations92
US9346101B2May 24, 2016
Cladded articles and methods of making the same
KENNAMETAL INC6 citations80
US9764986B2Sep 19, 2017
Low temperature CVD coatings and applications thereof
KENNAMETAL INC3 citations72
US10562101B2Feb 18, 2020
Methods of making metal matrix composite and alloy articles
KENNAMETAL INC1 citations70
US11247268B2Feb 15, 2022
Methods of making metal matrix composite and alloy articles
KENNAMETAL INC0 citations60
US9862029B2Jan 9, 2018
Methods of making metal matrix composite and alloy articles
KENNAMETAL INC1 citations60
US10967466B2Apr 6, 2021
Layered assemblies for superalloy article repair
KENNAMETAL INC0 citations59
US11000921B2May 11, 2021
Composite welding rods and associated cladded articles
KENNAMETAL INC0 citations57
US10391557B2Aug 27, 2019
Cladded articles and applications thereof
KENNAMETAL INC1 citations57
US12484138B2Nov 25, 2025
Coated nozzles for arc torches
KENNAMETAL INC0 citations54
US11376817B2Jul 5, 2022
Wear resistant articles and applications thereof
KENNAMETAL INC0 citations49
US10272497B2Apr 30, 2019
Cladded articles and methods of making the same
KENNAMETAL INC0 citations48
US9499888B2Nov 22, 2016
Carbide pellets for wear resistant applications
KENNAMETAL INC0 citations48
US12303926B2May 20, 2025
Multi-component electro-mechanical flame spray deposition system
KENNAMETAL INC0 citations41
US10221702B2Mar 5, 2019
Imparting high-temperature wear resistance to turbine blade Z-notches
KENNAMETAL INC0 citations33