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Xianyang, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Curved groove ball bearing mechanism
Patent number
11,421,764
Issue date
Aug 23, 2022
NORTHWEST A&F UNIVERSITY
Kangquan Guo
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Double-cylinder internal combustion engine
Patent number
11,193,418
Issue date
Dec 7, 2021
NORTHWEST A&F UNIVERSITY
Kangquan Guo
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Curved groove ball bearing without retainer
Patent number
10,895,281
Issue date
Jan 19, 2021
NORTHWEST A&F UNIVERSITY
Kangquan Guo
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Curved trench ball bearing
Patent number
9,970,484
Issue date
May 15, 2018
Kangquan Guo
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
DOUBLE-CYLINDER INTERNAL COMBUSTION ENGINE
Publication number
20210003070
Publication date
Jan 7, 2021
NORTHWEST A&F UNIVERSITY
Kangquan GUO
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
CURVED GROOVE BALL BEARING MECHANISM
Publication number
20200362948
Publication date
Nov 19, 2020
NORTHWEST A&F UNIVERSITY
Kangquan GUO
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
CURVED GROOVE BALL BEARING WITHOUT RETAINER
Publication number
20200224715
Publication date
Jul 16, 2020
NORTHWEST A&F UNIVERSITY
Kangquan GUO
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
CURVED TRENCH BALL BEARING
Publication number
20160123395
Publication date
May 5, 2016
NORTHWEST A & F UNIVERSITY
Kangquan Guo
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...