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Patents Grants
last 30 patents
Information
Patent Grant
Optical device
Patent number
11,942,577
Issue date
Mar 26, 2024
Grirem Advanced Materials Co., Ltd.
Ronghui Liu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical device
Patent number
11,923,485
Issue date
Mar 5, 2024
Grirem Advanced Materials Co., Ltd.
Ronghui Liu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Red light and near-infrared light-emitting material and light-emitt...
Patent number
11,718,788
Issue date
Aug 8, 2023
Grirem Advanced Materials Co., Ltd.
Ronghui Liu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Red phosphor, preparation method thereof and light-emitting device...
Patent number
11,680,203
Issue date
Jun 20, 2023
Grirem Advanced Materials Co., Ltd.
Ronghui Liu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride luminescent material and light emitting device comprising same
Patent number
11,485,907
Issue date
Nov 1, 2022
Grirem Advanced Materials Co., Ltd.
Ronghui Liu
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Near-infrared luminescent material and light-emitting device prepar...
Patent number
11,299,672
Issue date
Apr 12, 2022
Grirem Advanced Materials Co., Ltd.
Ronghui Liu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Red phosphor powder, preparation method thereof and luminescent dev...
Patent number
10,385,265
Issue date
Aug 20, 2019
Grirem Advanced Materials Co., Ltd.
Ronghui Liu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL DEVICE
Publication number
20220173281
Publication date
Jun 2, 2022
GRIREM ADVANCED MATERIALS CO., LTD
Ronghui LIU
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
OPTICAL DEVICE
Publication number
20220173282
Publication date
Jun 2, 2022
GRIREM ADVANCED MATERIALS CO., LTD
Ronghui LIU
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
RED LIGHT AND NEAR-INFRARED LIGHT-EMITTING MATERIAL AND LIGHT-EMITT...
Publication number
20220119704
Publication date
Apr 21, 2022
GRIREM ADVANCED MATERIALS CO., LTD
Ronghui LIU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Nitride Luminescent Material and Light Emitting Device Comprising Same
Publication number
20210403808
Publication date
Dec 30, 2021
GRIREM ADVANCED MATERIALS CO., LTD
Ronghui LIU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
RED PHOSPHOR, PREPARATION METHOD THEREOF AND LIGHT-EMITTING DEVICE...
Publication number
20210155848
Publication date
May 27, 2021
GRIREM ADVANCED MATERIALS CO., LTD
Ronghui LIU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NEAR-INFRARED LUMINESCENT MATERIAL AND LIGHT-EMITTING DEVICE PREPAR...
Publication number
20200362239
Publication date
Nov 19, 2020
GRIREM ADVANCED MATERIALS CO., LTD
RONGHUI LIU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
RED PHOSPHOR POWDER, PREPARATION METHOD THEREOF AND LUMINESCENT DEV...
Publication number
20180355243
Publication date
Dec 13, 2018
GRIREM ADVANCED MATERIALS CO., LTD
Ronghui Liu
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...