AXT, INC

Organization

FREMONT, CA, US

Ticker Symbols

NASDAQ:AXTI

SEMICONDUCTORS & RELATED DEVICES
Business Address
4281 TECHNOLOGY DR. FREMONT CA 94538 510.438.4734
Mailing Address
4281 TECHNOLOGY DR. FREMONT CA 94538
State Location
CA
State of Incorporation
DE

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Low etch pit density gallium arsenide crystals with boron dopant
- Patent number 12,276,044
- Issue date Apr 15, 2025
- AXT, Inc.
- Rajaram Shetty
- C30 - CRYSTAL GROWTH
Information Patent Grant
Low etch pit density 6 inch semi-insulating gallium arsenide wafers
- Patent number 12,084,790
- Issue date Sep 10, 2024
- AXT, Inc.
- Rajaram Shetty
- C30 - CRYSTAL GROWTH
Information Patent Grant
Low etch pit density, low slip line density, and low strain indium...
- Patent number 12,054,851
- Issue date Aug 6, 2024
- AXT, Inc.
- Morris Young
- C30 - CRYSTAL GROWTH
Information Patent Grant
Low etch pit density 6 inch semi-insulating gallium arsenide wafers
- Patent number 11,680,340
- Issue date Jun 20, 2023
- AXT, Inc.
- Rajaram Shetty
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Low etch pit density, low slip line density, and low strain indium...
- Patent number 11,608,569
- Issue date Mar 21, 2023
- AXT, Inc.
- Morris Young
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Germanium ingots/wafers having low micro-pit density (MPD) as well...
- Patent number 8,647,433
- Issue date Feb 11, 2014
- AXT, Inc.
- Weiguo Liu
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Systems, methods and substrates of monocrystalline germanium crysta...
- Patent number 8,506,706
- Issue date Aug 13, 2013
- AXT, Inc.
- Weiguo Liu
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Low etch pit density (EPD) semi-insulating III-V wafers
- Patent number 8,361,225
- Issue date Jan 29, 2013
- AXT, Inc.
- Weiguo Liu
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Systems, methods and solutions for chemical polishing of GaAs wafers
- Patent number 8,318,042
- Issue date Nov 27, 2012
- AXT Inc.
- Tan Kaixie
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Crystal growth apparatus and method
- Patent number 8,231,727
- Issue date Jul 31, 2012
- AXT, Inc.
- Weiguo Liu
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Low etch pit density (EPD) semi-insulating GaAs wafers
- Patent number 7,566,641
- Issue date Jul 28, 2009
- AXT, Inc.
- Weiguo Liu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for growing semiconductor crystals with a rigi...
- Patent number 6,896,729
- Issue date May 24, 2005
- AXT, Inc.
- Xiao Gordon Liu
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
High power, high luminous flux light emitting diode and method of m...
- Patent number 6,650,018
- Issue date Nov 18, 2003
- AXT, Inc.
- Yongsheng Zhao
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transparent substrate light emitting diode
- Patent number 6,643,304
- Issue date Nov 4, 2003
- AXT, Inc.
- John Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Window for light-emitting diode
- Patent number 6,580,096
- Issue date Jun 17, 2003
- AXT, Inc.
- John Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
InGaN/AlGaN/GaN multilayer buffer for growth of GaN on sapphire
- Patent number 6,495,867
- Issue date Dec 17, 2002
- AXT, Inc.
- Changhua Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Window for light emitting diode
- Patent number 6,459,098
- Issue date Oct 1, 2002
- AXT, Inc.
- John Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Window for gallium nitride light emitting diode
- Patent number 6,420,736
- Issue date Jul 16, 2002
- AXT, Inc.
- John Chen
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
LOW ETCH PIT DENSITY 6 INCH SEMI-INSULATING GALLIUM ARSENIDE WAFERS
- Publication number 20240426025
- Publication date Dec 26, 2024
- AXT, Inc.
- Rajaram Shetty
- C30 - CRYSTAL GROWTH
Information Patent Application
LOW ETCH PIT DENSITY, LOW SLIP LINE DENSITY, AND LOW STRAIN INDIUM...
- Publication number 20240384436
- Publication date Nov 21, 2024
- AXT, Inc.
- Morris Young
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD AND SYSTEM FOR VERTICAL GRADIENT FREEZE 8 INCH GALLIUM ARSEN...
- Publication number 20230416941
- Publication date Dec 28, 2023
- AXT, Inc.
- Weiguo Liu
- C30 - CRYSTAL GROWTH
Information Patent Application
LOW ETCH PIT DENSITY 6 INCH SEMI-INSULATING GALLIUM ARSENIDE WAFERS
- Publication number 20230407522
- Publication date Dec 21, 2023
- AXT, Inc.
- Rajaram Shetty
- C30 - CRYSTAL GROWTH
Information Patent Application
LOW ETCH PIT DENSITY, LOW SLIP LINE DENSITY, AND LOW STRAIN INDIUM...
- Publication number 20230212784
- Publication date Jul 6, 2023
- AXT, Inc.
- Morris Young
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD AND SYSTEM FOR VERTICAL GRADIENT FREEZE 8 INCH GALLIUM ARSEN...
- Publication number 20220298673
- Publication date Sep 22, 2022
- AXT, Inc.
- Weiguo Liu
- C30 - CRYSTAL GROWTH
Information Patent Application
LOW ETCH PIT DENSITY, LOW SLIP LINE DENSITY, AND LOW STRAIN INDIUM...
- Publication number 20210269939
- Publication date Sep 2, 2021
- AXT, Inc.
- Morris Young
- C30 - CRYSTAL GROWTH
Information Patent Application
Low Etch Pit Density Gallium Arsenide Crystals With Boron Dopant
- Publication number 20200190697
- Publication date Jun 18, 2020
- AXT, Inc.
- Rajaram Shetty
- C30 - CRYSTAL GROWTH
Information Patent Application
LOW ETCH PIT DENSITY 6 INCH SEMI-INSULATING GALLIUM ARSENIDE WAFERS
- Publication number 20200190696
- Publication date Jun 18, 2020
- AXT, Inc.
- Rajaram Shetty
- C30 - CRYSTAL GROWTH
Information Patent Application
CRYSTAL GROWTH APPARATUS AND METHOD
- Publication number 20120282133
- Publication date Nov 8, 2012
- AXT. Inc.
- Weiguo Liu
- C30 - CRYSTAL GROWTH
Information Patent Application
Low Etch Pit Density (EPD) Semi-Insulating III-V Wafers
- Publication number 20110293890
- Publication date Dec 1, 2011
- AXT, Inc.
- Weiguo Liu
- C30 - CRYSTAL GROWTH
Information Patent Application
GERMANIUM INGOTS/WAFERS HAVING LOW MICRO-PIT DENSITY (MPD) AS WELL...
- Publication number 20110143091
- Publication date Jun 16, 2011
- AXT, Inc.
- Weiguo Liu
- C30 - CRYSTAL GROWTH
Information Patent Application
Systems, methods and solutions for chemical polishing of GaAs wafers
- Publication number 20100176336
- Publication date Jul 15, 2010
- AXT, Inc.
- Tan Kaixie
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Systems, Methods and Substrates of Monocrystalline Germanium Crysta...
- Publication number 20100116196
- Publication date May 13, 2010
- AXT, Inc.
- Weiguo Liu
- C30 - CRYSTAL GROWTH
Information Patent Application
Low Etch Pit Density (EPD) Semi-Insulating GaAs Wafers
- Publication number 20100001288
- Publication date Jan 7, 2010
- AXT, Inc.
- Weiguo Liu
- C30 - CRYSTAL GROWTH
Information Patent Application
LASER ADJUSTABLE DEPTH MARK SYSTEM AND METHOD
- Publication number 20090179015
- Publication date Jul 16, 2009
- AXT, Inc.
- Xiaodong Zhao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Apparatus and method for reducing impurities in a semiconductor mat...
- Publication number 20060183329
- Publication date Aug 17, 2006
- AXT, Inc.
- Charles Leung
- C30 - CRYSTAL GROWTH
Information Patent Application
Apparatus for growing monocrystalline group II-VI and III-V compounds
- Publication number 20030172870
- Publication date Sep 18, 2003
- AXT, Inc.
- Xiao Gordon Liu
- C30 - CRYSTAL GROWTH
Information Patent Application
Window for GaN LED
- Publication number 20030010994
- Publication date Jan 16, 2003
- AXT, Inc.
- John Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
InGaN/A1GaN/GaN Multilayer Buffer for Growth of GaN on Sapphire
- Publication number 20020175337
- Publication date Nov 28, 2002
- AXT, Inc.
- Changhua Chen
- H01 - BASIC ELECTRIC ELEMENTS

Trademarklast 30 trademarks

Information Trademark
97019125 - AXT
- Serial number 97019125
- Registration number 7039824
- Filing date Sep 9, 2021
- AXT, Inc.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
90752071
- Serial number 90752071
- Filing date Jun 3, 2021
- AXT, Inc.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
90707325
- Serial number 90707325
- Filing date May 12, 2021
- AXT, Inc.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
77741492 - AXT
- Serial number 77741492
- Registration number 3725366
- Filing date May 20, 2009
- AXT, Inc.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
77737407 - AXT
- Serial number 77737407
- Registration number 3725141
- Filing date May 14, 2009
- AXT, Inc.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
76261320 - AXT
- Serial number 76261320
- Filing date May 21, 2001
- AXT, Inc.
- 10 - Surgical, medical, dental and veterinary apparatus and instruments, artificial limbs, eyes and teeth
Information Trademark
76261321 - AXT
- Serial number 76261321
- Filing date May 21, 2001
- AXT, Inc.
- 10 - Surgical, medical, dental and veterinary apparatus and instruments, artificial limbs, eyes and teeth
Information Trademark
75933377 - AXT
- Serial number 75933377
- Registration number 2981244
- Filing date Mar 2, 2000
- American Xtal Technology, Inc.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
75983363 - AXT
- Serial number 75983363
- Registration number 2779873
- Filing date Mar 2, 2000
- American Xtal Technology, Inc.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
75934179 - AXT
- Serial number 75934179
- Registration number 2729624
- Filing date Mar 2, 2000
- American Xtal Technology, Inc.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
75933298 - AXT
- Serial number 75933298
- Registration number 2948269
- Filing date Mar 2, 2000
- American Xtal Technology, Inc.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
75933407 - AXT
- Serial number 75933407
- Registration number 2753494
- Filing date Mar 2, 2000
- American Xtal Technology, Inc.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
75983364 - AXT
- Serial number 75983364
- Registration number 2782246
- Filing date Mar 2, 2000
- American Xtal Technology, Inc.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments

Organization

Ticker Symbols

Business Address

Mailing Address

State Location

State of Incorporation

Patents Grantslast 30 patents

Low etch pit density gallium arsenide crystals with boron dopant

Low etch pit density 6 inch semi-insulating gallium arsenide wafers

Low etch pit density, low slip line density, and low strain indium...

Low etch pit density 6 inch semi-insulating gallium arsenide wafers

Low etch pit density, low slip line density, and low strain indium...

Germanium ingots/wafers having low micro-pit density (MPD) as well...

Systems, methods and substrates of monocrystalline germanium crysta...

Low etch pit density (EPD) semi-insulating III-V wafers

Systems, methods and solutions for chemical polishing of GaAs wafers

Crystal growth apparatus and method

Low etch pit density (EPD) semi-insulating GaAs wafers

Method and apparatus for growing semiconductor crystals with a rigi...

High power, high luminous flux light emitting diode and method of m...

Transparent substrate light emitting diode

Window for light-emitting diode

InGaN/AlGaN/GaN multilayer buffer for growth of GaN on sapphire

Window for light emitting diode

Window for gallium nitride light emitting diode

Patents Applicationslast 30 patents

LOW ETCH PIT DENSITY 6 INCH SEMI-INSULATING GALLIUM ARSENIDE WAFERS

LOW ETCH PIT DENSITY, LOW SLIP LINE DENSITY, AND LOW STRAIN INDIUM...

METHOD AND SYSTEM FOR VERTICAL GRADIENT FREEZE 8 INCH GALLIUM ARSEN...

LOW ETCH PIT DENSITY 6 INCH SEMI-INSULATING GALLIUM ARSENIDE WAFERS

LOW ETCH PIT DENSITY, LOW SLIP LINE DENSITY, AND LOW STRAIN INDIUM...

METHOD AND SYSTEM FOR VERTICAL GRADIENT FREEZE 8 INCH GALLIUM ARSEN...

LOW ETCH PIT DENSITY, LOW SLIP LINE DENSITY, AND LOW STRAIN INDIUM...

Low Etch Pit Density Gallium Arsenide Crystals With Boron Dopant

LOW ETCH PIT DENSITY 6 INCH SEMI-INSULATING GALLIUM ARSENIDE WAFERS

CRYSTAL GROWTH APPARATUS AND METHOD

Low Etch Pit Density (EPD) Semi-Insulating III-V Wafers

GERMANIUM INGOTS/WAFERS HAVING LOW MICRO-PIT DENSITY (MPD) AS WELL...

Systems, methods and solutions for chemical polishing of GaAs wafers

Systems, Methods and Substrates of Monocrystalline Germanium Crysta...

Low Etch Pit Density (EPD) Semi-Insulating GaAs Wafers

LASER ADJUSTABLE DEPTH MARK SYSTEM AND METHOD

Apparatus and method for reducing impurities in a semiconductor mat...

Apparatus for growing monocrystalline group II-VI and III-V compounds

Window for GaN LED

InGaN/A1GaN/GaN Multilayer Buffer for Growth of GaN on Sapphire

Trademarklast 30 trademarks

97019125 - AXT

90752071

90707325

77741492 - AXT

77737407 - AXT

76261320 - AXT

76261321 - AXT

75933377 - AXT

75983363 - AXT

75934179 - AXT

75933298 - AXT

75933407 - AXT

75983364 - AXT