
Joon H. Hwang
Supervisory Patent Examiner (ID: 13115, Phone: (571)272-4036 , Office: P/2447 )
| Most Active Art Unit | 2447 |
| Art Unit(s) | 2166, 2172, 2162, 2447 |
| Total Applications | 416 |
| Issued Applications | 149 |
| Pending Applications | 24 |
| Abandoned Applications | 242 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 20473802
[patent_doc_number] => 20260016021
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2026-01-15
[patent_title] => FAN BLADE AND FAN
[patent_app_type] => utility
[patent_app_number] => 19/333734
[patent_app_country] => US
[patent_app_date] => 2025-09-19
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19333734
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Array
(
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[patent_doc_number] => 20250290486
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-09-18
[patent_title] => WIND TURBINE FLUTTER SUPPRESSION METHOD AND DEVICE, CONTROL SYSTEM AND WIND TURBINE
[patent_app_type] => utility
[patent_app_number] => 19/221547
[patent_app_country] => US
[patent_app_date] => 2025-05-29
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[rel_patent_id] =>[rel_patent_doc_number] =>) 19/221547 | WIND TURBINE FLUTTER SUPPRESSION METHOD AND DEVICE, CONTROL SYSTEM AND WIND TURBINE | May 28, 2025 | Pending |
Array
(
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[patent_doc_number] => 12454936
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[patent_kind] => B2
[patent_issue_date] => 2025-10-28
[patent_title] => Turbine assembly
[patent_app_type] => utility
[patent_app_number] => 19/193256
[patent_app_country] => US
[patent_app_date] => 2025-04-29
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Array
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[patent_doc_number] => 20250257736
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[patent_issue_date] => 2025-08-14
[patent_title] => APPARATUS TO REDUCE BEARING FAILURE
[patent_app_type] => utility
[patent_app_number] => 19/177992
[patent_app_country] => US
[patent_app_date] => 2025-04-14
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[rel_patent_id] =>[rel_patent_doc_number] =>) 19/177992 | APPARATUS TO REDUCE BEARING FAILURE | Apr 13, 2025 | Pending |
Array
(
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[patent_title] => SYSTEMS AND METHODS FOR INTEGRALLY GEARED CENTRIFUGAL COMPRESSOR TO MAINTAIN ROTOR CONCENTRICITY WITH DIFFERING PINION GEAR TOOTH COUNTS
[patent_app_type] => utility
[patent_app_number] => 19/075156
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Array
(
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[patent_doc_number] => 20250290426
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[patent_kind] => A1
[patent_issue_date] => 2025-09-18
[patent_title] => GAS TURBINE ENGINE WITH RELATIVE CLOCKING OF BIFURCATIONS
[patent_app_type] => utility
[patent_app_number] => 19/070934
[patent_app_country] => US
[patent_app_date] => 2025-03-05
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[rel_patent_id] =>[rel_patent_doc_number] =>) 19/070934 | Gas turbine engine with relative clocking of bifurcations | Mar 4, 2025 | Issued |
Array
(
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[patent_doc_number] => 20250195804
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[patent_kind] => A1
[patent_issue_date] => 2025-06-19
[patent_title] => COMPRESSOR FOR DELIVERING AN AIR AND/OR GAS STREAM
[patent_app_type] => utility
[patent_app_number] => 19/063591
[patent_app_country] => US
[patent_app_date] => 2025-02-26
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[rel_patent_id] =>[rel_patent_doc_number] =>) 19/063591 | COMPRESSOR FOR DELIVERING AN AIR AND/OR GAS STREAM | Feb 25, 2025 | Pending |
Array
(
[id] => 20136793
[patent_doc_number] => 20250243837
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-07-31
[patent_title] => TURBINE WITH SHEET-FLOW NOZZLE HAVING ADJUSTABLE WIDTH
[patent_app_type] => utility
[patent_app_number] => 19/039622
[patent_app_country] => US
[patent_app_date] => 2025-01-28
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[rel_patent_id] =>[rel_patent_doc_number] =>) 19/039622 | TURBINE WITH SHEET-FLOW NOZZLE HAVING ADJUSTABLE WIDTH | Jan 27, 2025 | Pending |
Array
(
[id] => 20085944
[patent_doc_number] => 20250215880
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[patent_issue_date] => 2025-07-03
[patent_title] => Air Pump Device with Bluetooth Function
[patent_app_type] => utility
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[rel_patent_id] =>[rel_patent_doc_number] =>) 19/026359 | Air pump device with Bluetooth function | Jan 16, 2025 | Issued |
Array
(
[id] => 20387059
[patent_doc_number] => 12486780
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[patent_kind] => B2
[patent_issue_date] => 2025-12-02
[patent_title] => Passive control of gas turbine clearances using ceramic matrix composites inserts
[patent_app_type] => utility
[patent_app_number] => 19/026898
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[patent_app_date] => 2025-01-17
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[rel_patent_id] =>[rel_patent_doc_number] =>) 19/026898 | Passive control of gas turbine clearances using ceramic matrix composites inserts | Jan 16, 2025 | Issued |
| 18/996350 | TURBOCHARGER HOUSING AND EXHAUST SYSTEM COMPRISING THE SAME | Jan 16, 2025 | Pending |
Array
(
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Array
(
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Array
(
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Array
(
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[patent_title] => CONNECTION MEMBER OF NECK FAN AND NECK FAN
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Array
(
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Array
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Array
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Array
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Array
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