Search

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 numberTitle of the applicationFiling DateStatus
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 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16298 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19333734 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/333734
FAN BLADE AND FAN Sep 18, 2025 Pending
Array ( [id] => 20233167 [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 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3740 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19221547 [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 ( [id] => 20316392 [patent_doc_number] => 12454936 [patent_country] => US [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 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 4570 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19193256 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/193256
Turbine assembly Apr 28, 2025 Issued
Array ( [id] => 20165690 [patent_doc_number] => 20250257736 [patent_country] => US [patent_kind] => A1 [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 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7939 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19177992 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/177992
APPARATUS TO REDUCE BEARING FAILURE Apr 13, 2025 Pending
Array ( [id] => 20069390 [patent_doc_number] => 20250207612 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-26 [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 [patent_app_country] => US [patent_app_date] => 2025-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19075156 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/075156
SYSTEMS AND METHODS FOR INTEGRALLY GEARED CENTRIFUGAL COMPRESSOR TO MAINTAIN ROTOR CONCENTRICITY WITH DIFFERING PINION GEAR TOOTH COUNTS Mar 9, 2025 Pending
Array ( [id] => 20233107 [patent_doc_number] => 20250290426 [patent_country] => US [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 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3976 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19070934 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/070934
Gas turbine engine with relative clocking of bifurcations Mar 4, 2025 Issued
Array ( [id] => 20057582 [patent_doc_number] => 20250195804 [patent_country] => US [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 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2342 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 252 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19063591 [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 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19039622 [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 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-03 [patent_title] => Air Pump Device with Bluetooth Function [patent_app_type] => utility [patent_app_number] => 19/026359 [patent_app_country] => US [patent_app_date] => 2025-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19026359 [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 [patent_country] => US [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 [patent_app_country] => US [patent_app_date] => 2025-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 21 [patent_no_of_words] => 1105 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19026898 [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 ( [id] => 20016714 [patent_doc_number] => 20250154936 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => Wind Turbine [patent_app_type] => utility [patent_app_number] => 19/021500 [patent_app_country] => US [patent_app_date] => 2025-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1209 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19021500 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/021500
Wind Turbine Jan 14, 2025 Pending
Array ( [id] => 20100864 [patent_doc_number] => 20250230800 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-17 [patent_title] => METHOD OF OPTIMIZING A ROTOR BLADE, ROTOR BLADE AND WIND TURBINE [patent_app_type] => utility [patent_app_number] => 19/020020 [patent_app_country] => US [patent_app_date] => 2025-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19020020 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/020020
METHOD OF OPTIMIZING A ROTOR BLADE, ROTOR BLADE AND WIND TURBINE Jan 13, 2025 Pending
Array ( [id] => 20060202 [patent_doc_number] => 20250198424 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => AIRFLOW DEVICE [patent_app_type] => utility [patent_app_number] => 18/986195 [patent_app_country] => US [patent_app_date] => 2024-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15094 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18986195 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/986195
AIRFLOW DEVICE Dec 17, 2024 Pending
Array ( [id] => 20122200 [patent_doc_number] => 20250237231 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-24 [patent_title] => CONNECTION MEMBER OF NECK FAN AND NECK FAN [patent_app_type] => utility [patent_app_number] => 18/972473 [patent_app_country] => US [patent_app_date] => 2024-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5967 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18972473 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/972473
Connection member of neck fan and neck fan Dec 5, 2024 Issued
Array ( [id] => 19863381 [patent_doc_number] => 20250102167 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => NOZZLE ASSEMBLY FOR EXHAUST FAN UNIT OF HVAC SYSTEM [patent_app_type] => utility [patent_app_number] => 18/972379 [patent_app_country] => US [patent_app_date] => 2024-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7955 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18972379 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/972379
NOZZLE ASSEMBLY FOR EXHAUST FAN UNIT OF HVAC SYSTEM Dec 5, 2024 Pending
Array ( [id] => 19801353 [patent_doc_number] => 20250067278 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => COMBINED FAN [patent_app_type] => utility [patent_app_number] => 18/947001 [patent_app_country] => US [patent_app_date] => 2024-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6994 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18947001 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/947001
Combined fan Nov 13, 2024 Issued
Array ( [id] => 19923575 [patent_doc_number] => 12297847 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-13 [patent_title] => Noise-reducing and nonuniform tip clearance structure of centrifugal compressor [patent_app_type] => utility [patent_app_number] => 18/942128 [patent_app_country] => US [patent_app_date] => 2024-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 375 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18942128 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/942128
Noise-reducing and nonuniform tip clearance structure of centrifugal compressor Nov 7, 2024 Issued
Array ( [id] => 20108970 [patent_doc_number] => 12359680 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-15 [patent_title] => Blower [patent_app_type] => utility [patent_app_number] => 18/921190 [patent_app_country] => US [patent_app_date] => 2024-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18921190 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/921190
Blower Oct 20, 2024 Issued
Array ( [id] => 19863207 [patent_doc_number] => 20250101993 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => AIR GUIDE COVER, OUTDOOR UNIT OF HVAC APPARATUS, AND HVAC APPARATUS [patent_app_type] => utility [patent_app_number] => 18/890086 [patent_app_country] => US [patent_app_date] => 2024-09-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10440 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18890086 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/890086
Air guide cover, outdoor unit of HVAC apparatus, and HVAC apparatus Sep 18, 2024 Issued
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