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Jianfeng Chen
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Clifton Park, NY, US
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Patents Grants
last 30 patents
Information
Patent Grant
Control of basal plane dislocations in large aluminum nitride crystals
Patent number
12,163,250
Issue date
Dec 10, 2024
Crystal IS, Inc.
Robert T. Bondokov
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Impurity control during formation of aluminum nitride crystals and...
Patent number
11,939,700
Issue date
Mar 26, 2024
Crystal IS, Inc.
Robert T. Bondokov
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Thermal control for formation and processing of aluminum nitride
Patent number
11,913,136
Issue date
Feb 27, 2024
Crystal IS, Inc.
Robert T. Bondokov
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Aluminum nitride single crystals having controllable color and meth...
Patent number
11,840,773
Issue date
Dec 12, 2023
Crystal IS, Inc.
Robert T. Bondokov
C30 - CRYSTAL GROWTH
Information
Patent Grant
Large, UV-transparent aluminum nitride single crystals
Patent number
11,828,002
Issue date
Nov 28, 2023
Crystal IS, Inc.
Robert T. Bondokov
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Thermal control for formation and processing of aluminum nitride
Patent number
11,578,425
Issue date
Feb 14, 2023
Crystal IS, Inc.
Robert T. Bondokov
C30 - CRYSTAL GROWTH
Information
Patent Grant
Aluminum nitride crystals having low urbach energy and high transpa...
Patent number
11,555,256
Issue date
Jan 17, 2023
Crystal IS, Inc.
Robert T. Bondokov
C30 - CRYSTAL GROWTH
Information
Patent Grant
Photon extraction from ultraviolet light-emitting devices
Patent number
11,515,455
Issue date
Nov 29, 2022
Crystal IS, Inc.
Ken Kitamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Impurity control during formation of aluminum nitride crystals and...
Patent number
11,168,411
Issue date
Nov 9, 2021
Crystal IS, Inc.
Robert T. Bondokov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photon extraction from nitride ultraviolet light-emitting devices
Patent number
10,971,665
Issue date
Apr 6, 2021
Crystal IS, Inc.
Leo J. Schowalter
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
UV-transparent aluminum nitride single crystal having a diameter of...
Patent number
10,954,608
Issue date
Mar 23, 2021
Crystal IS, Inc.
Robert T. Bondokov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photon extraction from ultraviolet light-emitting devices
Patent number
10,854,797
Issue date
Dec 1, 2020
CRYSTALIS, INC.
Ken Kitamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Thermal control for formation and processing of aluminum nitride
Patent number
10,851,474
Issue date
Dec 1, 2020
Crystal IS, Inc.
Robert T. Bondokov
C30 - CRYSTAL GROWTH
Information
Patent Grant
Electrochemical removal of aluminum nitride substrates for electron...
Patent number
10,777,706
Issue date
Sep 15, 2020
Crystal IS, Inc.
Ken Kitamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photon extraction from nitride ultraviolet light-emitting devices
Patent number
10,615,322
Issue date
Apr 7, 2020
Crystal IS, Inc.
Leo J. Schowalter
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Thermal control for formation and processing of aluminum nitride
Patent number
10,550,493
Issue date
Feb 4, 2020
Crystal IS, Inc.
Robert T. Bondokov
C30 - CRYSTAL GROWTH
Information
Patent Grant
Ultraviolet light-emitting devices and methods
Patent number
10,383,963
Issue date
Aug 20, 2019
Crystal IS, Inc.
Masato Toita
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Systems and methods for fluid treatment with homogeneous distributi...
Patent number
10,370,267
Issue date
Aug 6, 2019
Crystal IS, Inc.
Jianfeng Chen
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Photon extraction from ultraviolet light-emitting devices
Patent number
10,347,805
Issue date
Jul 9, 2019
Crystal IS, Inc.
Ken Kitamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photon extraction from nitride ultraviolet light-emitting devices
Patent number
10,074,784
Issue date
Sep 11, 2018
Crystal IS, Inc.
Leo J. Schowalter
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photon extraction from ultraviolet light-emitting devices
Patent number
9,935,247
Issue date
Apr 3, 2018
Crystal IS, Inc.
Ken Kitamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Systems and methods for fluid treatment with homogeneous distributi...
Patent number
9,745,209
Issue date
Aug 29, 2017
Crystal IS, Inc.
Jianfeng Chen
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Ultraviolet light-emitting devices and methods
Patent number
9,548,431
Issue date
Jan 17, 2017
Crystal IS, Inc.
Masato Toita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Systems and methods for fluid treatment with homogeneous distributi...
Patent number
9,321,658
Issue date
Apr 26, 2016
Crystal IS, Inc.
Jianfeng Chen
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Ultraviolet light-emitting devices and methods
Patent number
9,293,670
Issue date
Mar 22, 2016
Crystal IS, Inc.
Masato Toita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photon extraction from nitride ultraviolet light-emitting devices
Patent number
8,962,359
Issue date
Feb 24, 2015
Crystal IS, Inc.
Leo J. Schowalter
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
ALUMINUM NITRIDE CRYSTALS HAVING LOW URBACH ENERGY AND HIGH TRANSPA...
Publication number
20230183883
Publication date
Jun 15, 2023
Robert T. BONDOKOV
C01 - INORGANIC CHEMISTRY
Information
Patent Application
THERMAL CONTROL FOR FORMATION AND PROCESSING OF ALUMINUM NITRIDE
Publication number
20230167584
Publication date
Jun 1, 2023
Robert T. BONDOKOV
C01 - INORGANIC CHEMISTRY
Information
Patent Application
IMPURITY CONTROL DURING FORMATION OF ALUMINUM NITRIDE CRYSTALS AND...
Publication number
20220074072
Publication date
Mar 10, 2022
Robert T. BONDOKOV
C01 - INORGANIC CHEMISTRY
Information
Patent Application
LARGE, UV-TRANSPARENT ALUMINUM NITRIDE SINGLE CRYSTALS
Publication number
20210254240
Publication date
Aug 19, 2021
Robert T. BONDOKOV
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
THERMAL CONTROL FOR FORMATION AND PROCESSING OF ALUMINUM NITRIDE
Publication number
20210108336
Publication date
Apr 15, 2021
Robert T. BONDOKOV
C30 - CRYSTAL GROWTH
Information
Patent Application
PHOTON EXTRACTION FROM ULTRAVIOLET LIGHT-EMITTING DEVICES
Publication number
20210111317
Publication date
Apr 15, 2021
Ken Kitamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DIAMETER EXPANSION OF ALUMINUM NITRIDE CRYSTALS DURING GROWTH BY PH...
Publication number
20210047749
Publication date
Feb 18, 2021
Robert T. BONDOKOV
C30 - CRYSTAL GROWTH
Information
Patent Application
ALUMINUM NITRIDE SINGLE CRYSTALS HAVING LARGE CRYSTAL AUGMENTATION...
Publication number
20210047751
Publication date
Feb 18, 2021
Robert T. BONDOKOV
C30 - CRYSTAL GROWTH
Information
Patent Application
PHOTON EXTRACTION FROM NITRIDE ULTRAVIOLET LIGHT-EMITTING DEVICES
Publication number
20200321498
Publication date
Oct 8, 2020
Leo J. Schowalter
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
THERMAL CONTROL FOR FORMATION AND PROCESSING OF ALUMINUM NITRIDE
Publication number
20200190694
Publication date
Jun 18, 2020
Robert T. BONDOKOV
C30 - CRYSTAL GROWTH
Information
Patent Application
IMPURITY CONTROL DURING FORMATION OF ALUMINUM NITRIDE CRYSTALS AND...
Publication number
20190382916
Publication date
Dec 19, 2019
Robert T. BONDOKOV
C30 - CRYSTAL GROWTH
Information
Patent Application
ALUMINUM NITRIDE CRYSTALS HAVING LOW URBACH ENERGY AND HIGH TRANSPA...
Publication number
20190382919
Publication date
Dec 19, 2019
Robert T. BONDOKOV
C30 - CRYSTAL GROWTH
Information
Patent Application
PHOTON EXTRACTION FROM ULTRAVIOLET LIGHT-EMITTING DEVICES
Publication number
20190348581
Publication date
Nov 14, 2019
Ken Kitamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LARGE, UV-TRANSPARENT ALUMINUM NITRIDE SINGLE CRYSTALS
Publication number
20190153618
Publication date
May 23, 2019
Robert T. BONDOKOV
C30 - CRYSTAL GROWTH
Information
Patent Application
THERMAL CONTROL FOR FORMATION AND PROCESSING OF ALUMINUM NITRIDE
Publication number
20190145020
Publication date
May 16, 2019
Robert T. BONDOKOV
C30 - CRYSTAL GROWTH
Information
Patent Application
ELECTROCHEMICAL REMOVAL OF ALUMINUM NITRIDE SUBSTRATES FOR ELECTRON...
Publication number
20190115501
Publication date
Apr 18, 2019
Ken KITAMURA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PHOTON EXTRACTION FROM NITRIDE ULTRAVIOLET LIGHT-EMITTING DEVICES
Publication number
20190035992
Publication date
Jan 31, 2019
Leo J. Schowalter
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PHOTON EXTRACTION FROM ULTRAVIOLET LIGHT-EMITTING DEVICES
Publication number
20180190883
Publication date
Jul 5, 2018
Ken Kitamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SYSTEMS AND METHODS FOR FLUID TREATMENT WITH HOMOGENEOUS DISTRIBUTI...
Publication number
20170320755
Publication date
Nov 9, 2017
Jianfeng Chen
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
ULTRAVIOLET LIGHT-EMITTING DEVICES AND METHODS
Publication number
20170087262
Publication date
Mar 30, 2017
Masato Toita
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
SYSTEMS AND METHODS FOR FLUID TREATMENT WITH HOMOGENEOUS DISTRIBUTI...
Publication number
20160200594
Publication date
Jul 14, 2016
Jianfeng Chen
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
PHOTON EXTRACTION FROM NITRIDE ULTRAVIOLET LIGHT-EMITTING DEVICES
Publication number
20160181487
Publication date
Jun 23, 2016
Leo J. Schowalter
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ULTRAVOILET LIGHT-EMITTING DEVICES AND METHODS
Publication number
20160172553
Publication date
Jun 16, 2016
Masato Toita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PHOTON EXTRACTION FROM ULTRAVIOLET LIGHT-EMITTING DEVICES
Publication number
20160027975
Publication date
Jan 28, 2016
Ken Kitamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ULTRAVIOLET LIGHT-EMITTING DEVICES AND METHODS
Publication number
20150287894
Publication date
Oct 8, 2015
Masato Toita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SYSTEMS AND METHODS FOR FLUID TREATMENT WITH HOMOGENEOUS DISTRIBUTI...
Publication number
20150060692
Publication date
Mar 5, 2015
Jianfeng Chen
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
PHOTON EXTRACTION FROM NITRIDE ULTRAVIOLET LIGHT-EMITTING DEVICES
Publication number
20140203311
Publication date
Jul 24, 2014
Crystal IS, Inc.
Leo J. Schowalter
H01 - BASIC ELECTRIC ELEMENTS