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Patents Grants
last 30 patents
Information
Patent Grant
Method for preparing weathered coal-derived humic acid/urea-formald...
Patent number
12,180,125
Issue date
Dec 31, 2024
North University of China
Yaqing Liu
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Grant
Efficient microwave preparation method with one-step simultaneous r...
Patent number
12,110,230
Issue date
Oct 8, 2024
North University of China
Yaqing Liu
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing thermoplastic starch by in-situ reactive extru...
Patent number
12,098,253
Issue date
Sep 24, 2024
North University of China
Yaqing Liu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Microelement amino acid chelate-urea formaldehyde slow-release fert...
Patent number
11,970,427
Issue date
Apr 30, 2024
North University of China
Yaqing Liu
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Grant
Device and method for determining degradation rate of biodegradable...
Patent number
11,789,005
Issue date
Oct 17, 2023
North University of China
Yaqing Liu
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
High-precision and high-efficiency injection mold for high-aspect-r...
Patent number
11,745,402
Issue date
Sep 5, 2023
North University of China
Yaqing Liu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of preparing graphene/natural rubber composite with enhanced...
Patent number
11,732,112
Issue date
Aug 22, 2023
North University of China
Yaqing Liu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Preparation of urea-formaldehyde/poly(butylene succinate) and its t...
Patent number
11,732,078
Issue date
Aug 22, 2023
North University of China
Yaqing Liu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Gradient electrically conductive-uniform thermally conductive dual...
Patent number
11,622,483
Issue date
Apr 4, 2023
North University of China
Yaqing Liu
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Equipment and method for continuously preparing graphene powder dir...
Patent number
11,597,810
Issue date
Mar 7, 2023
North University of China
Yaqing Liu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Extrusion granulated urea-formaldehyde-based multi-nutrient slow/co...
Patent number
10,906,843
Issue date
Feb 2, 2021
North University of China
Guizhe Zhao
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Grant
Water-absorbing and water-retaining multi-nutrient biodegradable po...
Patent number
10,865,161
Issue date
Dec 15, 2020
North University of China
Yaqing Liu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Slow and controlled release polymeric sulfur fertilizer containing...
Patent number
9,051,222
Issue date
Jun 9, 2015
North University of China
Yaqing Liu
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Grant
Slow and controlled-release polymeric fertilizer with multiple nutr...
Patent number
7,753,984
Issue date
Jul 13, 2010
Yaqing Liu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
OPTIMIZATION METHOD FOR MOLDING MOLD AND FILLING PROCESS OF RESIN T...
Publication number
20250165675
Publication date
May 22, 2025
NORTH UNIVERSITY OF CHINA
Yaqing LIU
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ARTIFICIAL INTELLIGENCE (AI)-BASED METHOD FOR NON-CONTACT MEASUREME...
Publication number
20250156714
Publication date
May 15, 2025
NORTH UNIVERSITY OF CHINA
Yaqing LIU
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
INTEGRATED-PREPARATION AND APPLICATION METHODS OF UREA-FORMALDEHYDE...
Publication number
20250154075
Publication date
May 15, 2025
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
THERMAL COMPENSATION DESIGN AND IMPLEMENTATION METHOD FOR A NEAR-NE...
Publication number
20250156590
Publication date
May 15, 2025
NORTH UNIVERSITY OF CHINA
Yaqing LIU
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD FOR PREPARING UNIFORMLY-CURED SOLID LOADING TIRES FROM HIGH-...
Publication number
20250145774
Publication date
May 8, 2025
NORTH UNIVERSITY OF CHINA
Yaqing LIU
B60 - VEHICLES IN GENERAL
Information
Patent Application
METHOD FOR PREPARING GRAPHENE-MODIFIED NATURAL RUBBER WITH AN INTER...
Publication number
20250145801
Publication date
May 8, 2025
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
LIGHTWEIGHT ABSORPTION-TRANSMISSION INTEGRATED METAMATERIAL TO ELEC...
Publication number
20250142797
Publication date
May 1, 2025
NORTH UNIVERSITY OF CHINA
Yaqing LIU
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
OPTIMIZING METHOD FOR MOLDING PROCESS OF FIBER-REINFORCED POLYMER C...
Publication number
20250094672
Publication date
Mar 20, 2025
NORTH UNIVERSITY OF CHINA
Yaqing LIU
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
HIGH-VELOCITY IMPACT-RESISTANT WAVE-TRANSPARENT COMPOSITE WITH BIO-...
Publication number
20250065599
Publication date
Feb 27, 2025
NORTH UNIVERSITY OF CHINA
Yaqing LIU
B32 - LAYERED PRODUCTS
Information
Patent Application
LIGHTWEIGHT, LOW-THICKNESS, DURABLE AND RELIABLE MULTI-BAND RADAR S...
Publication number
20240408846
Publication date
Dec 12, 2024
NORTH UNIVERSITY OF CHINA
Yaqing LIU
B32 - LAYERED PRODUCTS
Information
Patent Application
LIGHTWEIGHT, BALLISTIC AND BLAST-RESISTANT MULTI-PHASE COMPOSITE AR...
Publication number
20240369326
Publication date
Nov 7, 2024
NORTH UNIVERSITY OF CHINA
Yaqing LIU
F41 - WEAPONS
Information
Patent Application
EFFICIENT MICROWAVE PREPARATION METHOD WITH ONE-STEP SIMULTANEOUS R...
Publication number
20240174518
Publication date
May 30, 2024
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C01 - INORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PREPARING WEATHERED COAL-DERIVED HUMIC ACID/UREA-FORMALD...
Publication number
20240174578
Publication date
May 30, 2024
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
SULFONATED LIGNIN AS A BY-PRODUCT OF PAPERMAKING WOOD PULP/UREA-FOR...
Publication number
20240132676
Publication date
Apr 25, 2024
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
MICROELEMENT AMINO ACID CHELATE-UREA FORMALDEHYDE SLOW-RELEASE FERT...
Publication number
20240059625
Publication date
Feb 22, 2024
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
EFFICIENT AND COST-EFFECTIVE METHOD FOR PREPARING ULTRA-FINE POWDER...
Publication number
20230321620
Publication date
Oct 12, 2023
NORTH UNIVERSITY OF CHINA
Yaqing LIU
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
HIGH-PRECISION AND HIGH-EFFICIENCY INJECTION MOLD FOR HIGH-ASPECT-R...
Publication number
20230173723
Publication date
Jun 8, 2023
NORTH UNIVERSITY OF CHINA
Yaqing LIU
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
BIODEGRADABLE UREA-FORMALDEHYDE-BASED SAND-FIXING POLYMER MATERIAL...
Publication number
20230123541
Publication date
Apr 20, 2023
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
EQUIPMENT AND METHOD FOR CONTINUOUSLY PREPARING GRAPHENE POWDER DIR...
Publication number
20230040074
Publication date
Feb 9, 2023
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
VULCANIZING AGENT-MODIFIED GRAPHENE PREPARED THROUGH AN IN-SITU CHE...
Publication number
20220403133
Publication date
Dec 22, 2022
NORTH UNIVERSITY OF CHINA
Yaqing LIU
B60 - VEHICLES IN GENERAL
Information
Patent Application
METHOD FOR CONVERTING BIODEGRADABLE POLYMERS INTO HUMUS WITH A LOW...
Publication number
20220388923
Publication date
Dec 8, 2022
NORTH UNIVERSITY OF CHINA
Yaqing Liu
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
DEVICE AND METHOD FOR INDUSTRIALIZED CONTINUOUS AND SIMPLIFIED PREP...
Publication number
20220315499
Publication date
Oct 6, 2022
NORTH UNIVERSITY OF CHINA
Guizhe ZHAO
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
METHOD FOR PREPARING THERMOPLASTIC STARCH BY IN-SITU REACTIVE EXTRU...
Publication number
20220298308
Publication date
Sep 22, 2022
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PREPARING NITROGEN-RICH OR NUTRITIOUS SLOW-RELEASE FERTI...
Publication number
20220289639
Publication date
Sep 15, 2022
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
METHOD FOR PREPARING GRAPHENE MASTERBATCH BY AQUEOUS PHASE SYNERGIS...
Publication number
20220289934
Publication date
Sep 15, 2022
NORTH UNIVERSITY OF CHINA
Yaqing LIU
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
HIGHLY EFFICIENT AND ENVIRONMENT-FRIENDLY REACTIVE EXTRUSION INTEGR...
Publication number
20220250997
Publication date
Aug 11, 2022
NORTH UNIVERSITY OF CHINA
Yaqing Liu
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Application
DEVICE AND METHOD FOR DETERMINING DEGRADATION RATE OF BIODEGRADABLE...
Publication number
20220146489
Publication date
May 12, 2022
NORTH UNIVERSITY OF CHINA
Yaqing LIU
G01 - MEASURING TESTING
Information
Patent Application
GRADIENT ELECTRICALLY CONDUCTIVE-UNIFORM THERMALLY CONDUCTIVE DUAL...
Publication number
20220095498
Publication date
Mar 24, 2022
NORTH UNIVERSITY OF CHINA
Yaqing LIU
B82 - NANO-TECHNOLOGY
Information
Patent Application
PREPARATION OF UREA-FORMALDEHYDE/POLY(BUTYLENE SUCCINATE) AND ITS T...
Publication number
20210261709
Publication date
Aug 26, 2021
NORTH UNIVERSITY OF CHINA
Yaqing Liu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
EXTRUSION GRANULATED UREA-FORMALDEHYDE-BASED MULTI-NUTRIENT SLOW/CO...
Publication number
20190218152
Publication date
Jul 18, 2019
NORTH UNIVERSITY OF CHINA
Guizhe Zhao
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING