
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] => 16269640
[patent_doc_number] => 20200271127
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-08-27
[patent_title] => Centrifugal Pump
[patent_app_type] => utility
[patent_app_number] => 16/790893
[patent_app_country] => US
[patent_app_date] => 2020-02-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5102
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -8
[patent_words_short_claim] => 180
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16790893
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/790893 | Centrifugal Pump | Feb 13, 2020 | Abandoned |
Array
(
[id] => 16513640
[patent_doc_number] => 20200392898
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-12-17
[patent_title] => TURBOFAN ENGINE WITH ACOUSTIC TREATMENT
[patent_app_type] => utility
[patent_app_number] => 16/784328
[patent_app_country] => US
[patent_app_date] => 2020-02-07
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4852
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[patent_words_short_claim] => 51
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16784328
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/784328 | Turbofan engine with acoustic treatment | Feb 6, 2020 | Issued |
Array
(
[id] => 18740402
[patent_doc_number] => 20230349379
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-11-02
[patent_title] => SPIRAL COMPRESSOR
[patent_app_type] => utility
[patent_app_number] => 17/791217
[patent_app_country] => US
[patent_app_date] => 2020-01-09
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3662
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -13
[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] => 17791217
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/791217 | Spiral compressor | Jan 8, 2020 | Issued |
Array
(
[id] => 18021487
[patent_doc_number] => 20220372986
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-11-24
[patent_title] => Oscillation Device and Fan
[patent_app_type] => utility
[patent_app_number] => 17/772752
[patent_app_country] => US
[patent_app_date] => 2020-01-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5430
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[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] => 17772752
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/772752 | Oscillation device and fan | Jan 7, 2020 | Issued |
Array
(
[id] => 16437757
[patent_doc_number] => 20200355083
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-11-12
[patent_title] => FAN
[patent_app_type] => utility
[patent_app_number] => 16/734204
[patent_app_country] => US
[patent_app_date] => 2020-01-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4074
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 60
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16734204
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/734204 | Fan | Jan 2, 2020 | Issued |
Array
(
[id] => 16916998
[patent_doc_number] => 20210190090
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-06-24
[patent_title] => BLOWER HOUSING FOR BLOWER OF HVAC SYSTEM
[patent_app_type] => utility
[patent_app_number] => 16/725924
[patent_app_country] => US
[patent_app_date] => 2019-12-23
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 9340
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -21
[patent_words_short_claim] => 154
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16725924
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/725924 | Blower housing for blower of HVAC system | Dec 22, 2019 | Issued |
Array
(
[id] => 16886256
[patent_doc_number] => 20210172452
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-06-10
[patent_title] => CENTRIFUGAL COMPRESSOR IMPELLER WITH NONLINEAR BACKWALL
[patent_app_type] => utility
[patent_app_number] => 16/709442
[patent_app_country] => US
[patent_app_date] => 2019-12-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2911
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 59
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16709442
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/709442 | Centrifugal compressor impeller with nonlinear backwall | Dec 9, 2019 | Issued |
Array
(
[id] => 16886257
[patent_doc_number] => 20210172453
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-06-10
[patent_title] => FAN HUB CONFIGURATION FOR AN ELECTRIC MOTOR ASSEMBLY
[patent_app_type] => utility
[patent_app_number] => 16/709267
[patent_app_country] => US
[patent_app_date] => 2019-12-10
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4952
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 74
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16709267
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/709267 | Fan hub configuration for an electric motor assembly | Dec 9, 2019 | Issued |
Array
(
[id] => 15995167
[patent_doc_number] => 20200173454
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-06-04
[patent_title] => BACKWARD CURVED PLENUM FAN HAVING ENHANCED EFFICIENCY
[patent_app_type] => utility
[patent_app_number] => 16/702144
[patent_app_country] => US
[patent_app_date] => 2019-12-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4215
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[patent_words_short_claim] => 107
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16702144
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/702144 | Backward curved plenum fan having enhanced efficiency | Dec 2, 2019 | Issued |
Array
(
[id] => 15995169
[patent_doc_number] => 20200173455
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-06-04
[patent_title] => DOUBLE SUCTION FAN AND AIR CONDITIONER HAVING THE SAME
[patent_app_type] => utility
[patent_app_number] => 16/697950
[patent_app_country] => US
[patent_app_date] => 2019-11-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 13118
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 225
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16697950
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/697950 | Double suction fan and air conditioner having the same | Nov 26, 2019 | Issued |
Array
(
[id] => 16399633
[patent_doc_number] => 20200340491
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-10-29
[patent_title] => COMPRESSOR WHEEL FOR TURBOCHARGER
[patent_app_type] => utility
[patent_app_number] => 16/693251
[patent_app_country] => US
[patent_app_date] => 2019-11-23
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2273
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -5
[patent_words_short_claim] => 46
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16693251
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/693251 | Compressor wheel for turbocharger | Nov 22, 2019 | Issued |
Array
(
[id] => 16269509
[patent_doc_number] => 20200270996
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-08-27
[patent_title] => BLADE AND ROTARY MACHINE HAVING THE SAME
[patent_app_type] => utility
[patent_app_number] => 16/690610
[patent_app_country] => US
[patent_app_date] => 2019-11-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 9009
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -13
[patent_words_short_claim] => 148
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16690610
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/690610 | Blade and rotary machine having the same | Nov 20, 2019 | Issued |
Array
(
[id] => 17414811
[patent_doc_number] => 20220049715
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-02-17
[patent_title] => DIAGONAL FAN HAVING AN OPTIMIZED DIAGONAL IMPELLER
[patent_app_type] => utility
[patent_app_number] => 17/274767
[patent_app_country] => US
[patent_app_date] => 2019-11-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2147
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[patent_words_short_claim] => 118
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17274767
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/274767 | Diagonal fan having an optimized diagonal impeller | Nov 3, 2019 | Issued |
Array
(
[id] => 15651357
[patent_doc_number] => 20200088208
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-03-19
[patent_title] => Semi-Open Centrifugal Pump Impeller and Its Optimization Design
[patent_app_type] => utility
[patent_app_number] => 16/669276
[patent_app_country] => US
[patent_app_date] => 2019-10-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3336
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 202
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16669276
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/669276 | Semi-open centrifugal pump impeller and its optimization design | Oct 29, 2019 | Issued |
Array
(
[id] => 17743114
[patent_doc_number] => 11391173
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2022-07-19
[patent_title] => Passive control of gas turbine clearances using ceramic matrix composites inserts
[patent_app_type] => utility
[patent_app_number] => 16/667071
[patent_app_country] => US
[patent_app_date] => 2019-10-29
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 20
[patent_figures_cnt] => 21
[patent_no_of_words] => 5802
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 131
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16667071
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/667071 | Passive control of gas turbine clearances using ceramic matrix composites inserts | Oct 28, 2019 | Issued |
Array
(
[id] => 17521034
[patent_doc_number] => 20220106883
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-04-07
[patent_title] => TURBINE BLADE AND STEAM TURBINE INCLUDING THE SAME
[patent_app_type] => utility
[patent_app_number] => 17/312277
[patent_app_country] => US
[patent_app_date] => 2019-10-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 9312
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -13
[patent_words_short_claim] => 214
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17312277
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/312277 | Turbine blade and steam turbine including the same | Oct 20, 2019 | Issued |
Array
(
[id] => 16778725
[patent_doc_number] => 20210115803
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-04-22
[patent_title] => GAS TURBINE ENGINE AIRFOIL
[patent_app_type] => utility
[patent_app_number] => 16/654380
[patent_app_country] => US
[patent_app_date] => 2019-10-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4097
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[patent_words_short_claim] => 97
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16654380
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/654380 | Gas turbine engine airfoil | Oct 15, 2019 | Issued |
Array
(
[id] => 17938991
[patent_doc_number] => 11473436
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2022-10-18
[patent_title] => Seal assembly
[patent_app_type] => utility
[patent_app_number] => 16/601093
[patent_app_country] => US
[patent_app_date] => 2019-10-14
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 10
[patent_figures_cnt] => 16
[patent_no_of_words] => 8146
[patent_no_of_claims] => 10
[patent_no_of_ind_claims] => 2
[patent_words_short_claim] => 155
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16601093
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/601093 | Seal assembly | Oct 13, 2019 | Issued |
Array
(
[id] => 15995173
[patent_doc_number] => 20200173457
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-06-04
[patent_title] => METHOD OF DESIGNING BLADE OF AXIAL FLOW FLUID MACHINE AND BLADE
[patent_app_type] => utility
[patent_app_number] => 16/587456
[patent_app_country] => US
[patent_app_date] => 2019-09-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 8415
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => 0
[patent_words_short_claim] => 337
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16587456
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/587456 | Method of designing blade of axial flow fluid machine and blade | Sep 29, 2019 | Issued |
Array
(
[id] => 17200897
[patent_doc_number] => 20210340992
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-11-04
[patent_title] => BLADE AND AXIAL FLOW IMPELLER USING SAME
[patent_app_type] => utility
[patent_app_number] => 17/280111
[patent_app_country] => US
[patent_app_date] => 2019-09-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4337
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[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] => 17280111
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/280111 | Blade and axial flow impeller using same | Sep 23, 2019 | Issued |