Search

Kyung Sook Chang

Examiner (ID: 4501, Phone: (571)270-1392 , Office: P/1613 )

Most Active Art Unit
1613
Art Unit(s)
1613
Total Applications
897
Issued Applications
491
Pending Applications
124
Abandoned Applications
314

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18838233 [patent_doc_number] => 11846298 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-19 [patent_title] => Vacuum pump and vacuum pump component part [patent_app_type] => utility [patent_app_number] => 17/796785 [patent_app_country] => US [patent_app_date] => 2021-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 11224 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 306 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17796785 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/796785
Vacuum pump and vacuum pump component part Jan 28, 2021 Issued
Array ( [id] => 18996624 [patent_doc_number] => 11913458 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-27 [patent_title] => Pump [patent_app_type] => utility [patent_app_number] => 17/795618 [patent_app_country] => US [patent_app_date] => 2021-01-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 3249 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17795618 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/795618
Pump Jan 28, 2021 Issued
Array ( [id] => 18576067 [patent_doc_number] => 11732585 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-08-22 [patent_title] => Trapped rotatable weights to improve rotor balance [patent_app_type] => utility [patent_app_number] => 17/161490 [patent_app_country] => US [patent_app_date] => 2021-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6723 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17161490 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/161490
Trapped rotatable weights to improve rotor balance Jan 27, 2021 Issued
Array ( [id] => 17053049 [patent_doc_number] => 20210262483 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-08-26 [patent_title] => Compressor [patent_app_type] => utility [patent_app_number] => 17/159234 [patent_app_country] => US [patent_app_date] => 2021-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8073 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -31 [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] => 17159234 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/159234
Compressor Jan 26, 2021 Abandoned
Array ( [id] => 17845406 [patent_doc_number] => 11434765 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-09-06 [patent_title] => Turbine engine with airfoil having high acceleration and low blade turning [patent_app_type] => utility [patent_app_number] => 17/148635 [patent_app_country] => US [patent_app_date] => 2021-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 7528 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 251 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17148635 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/148635
Turbine engine with airfoil having high acceleration and low blade turning Jan 13, 2021 Issued
Array ( [id] => 18227264 [patent_doc_number] => 20230066258 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-02 [patent_title] => MITIGATING STANDSTILL VIBRATIONS OF A WIND TURBINE [patent_app_type] => utility [patent_app_number] => 17/794288 [patent_app_country] => US [patent_app_date] => 2021-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5924 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 17794288 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/794288
Mitigating standstill vibrations of a wind turbine Jan 10, 2021 Issued
Array ( [id] => 19013561 [patent_doc_number] => 11920481 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-05 [patent_title] => Module for turbomachine [patent_app_type] => utility [patent_app_number] => 17/785217 [patent_app_country] => US [patent_app_date] => 2020-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 3975 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17785217 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/785217
Module for turbomachine Dec 17, 2020 Issued
Array ( [id] => 18188035 [patent_doc_number] => 11578607 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-14 [patent_title] => Airfoil having a spline fillet [patent_app_type] => utility [patent_app_number] => 17/122517 [patent_app_country] => US [patent_app_date] => 2020-12-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 16 [patent_no_of_words] => 8265 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17122517 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/122517
Airfoil having a spline fillet Dec 14, 2020 Issued
Array ( [id] => 18029431 [patent_doc_number] => 11512608 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-11-29 [patent_title] => Passive transpirational flow acoustically lined guide vane [patent_app_type] => utility [patent_app_number] => 17/119510 [patent_app_country] => US [patent_app_date] => 2020-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 7812 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17119510 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/119510
Passive transpirational flow acoustically lined guide vane Dec 10, 2020 Issued
Array ( [id] => 17657805 [patent_doc_number] => 20220178270 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-09 [patent_title] => VARIABLE STATOR VANES WITH ANTI-LOCK TRUNNIONS [patent_app_type] => utility [patent_app_number] => 17/115366 [patent_app_country] => US [patent_app_date] => 2020-12-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6817 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17115366 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/115366
Variable stator vanes with anti-lock trunnions Dec 7, 2020 Issued
Array ( [id] => 16871026 [patent_doc_number] => 20210164493 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-06-03 [patent_title] => CENTRIFUGAL COMPRESSOR AND METHOD OF OPERATING THE SAME [patent_app_type] => utility [patent_app_number] => 17/106361 [patent_app_country] => US [patent_app_date] => 2020-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5369 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17106361 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/106361
Centrifugal compressor and method of operating the same Nov 29, 2020 Issued
Array ( [id] => 16712782 [patent_doc_number] => 20210079929 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-18 [patent_title] => HIGH PERFORMANCE WEDGE DIFFUSERS FOR COMPRESSION SYSTEMS [patent_app_type] => utility [patent_app_number] => 16/951258 [patent_app_country] => US [patent_app_date] => 2020-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8458 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16951258 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/951258
High performance wedge diffusers for compression systems Nov 17, 2020 Issued
Array ( [id] => 19521691 [patent_doc_number] => 12123404 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-22 [patent_title] => Nacelle cover for a wind turbine [patent_app_type] => utility [patent_app_number] => 17/776016 [patent_app_country] => US [patent_app_date] => 2020-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 27 [patent_no_of_words] => 14227 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17776016 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/776016
Nacelle cover for a wind turbine Nov 12, 2020 Issued
Array ( [id] => 17421765 [patent_doc_number] => 11255210 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-02-22 [patent_title] => Ceramic matrix composite turbine shroud assembly with joined cover plate [patent_app_type] => utility [patent_app_number] => 17/082740 [patent_app_country] => US [patent_app_date] => 2020-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 7844 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17082740 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/082740
Ceramic matrix composite turbine shroud assembly with joined cover plate Oct 27, 2020 Issued
Array ( [id] => 17588217 [patent_doc_number] => 11326476 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-05-10 [patent_title] => Compliant retention system for gas turbine engine [patent_app_type] => utility [patent_app_number] => 17/077079 [patent_app_country] => US [patent_app_date] => 2020-10-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 10082 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17077079 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/077079
Compliant retention system for gas turbine engine Oct 21, 2020 Issued
Array ( [id] => 17436419 [patent_doc_number] => 11261736 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-03-01 [patent_title] => Vane having rib aligned with aerodynamic load vector [patent_app_type] => utility [patent_app_number] => 17/034200 [patent_app_country] => US [patent_app_date] => 2020-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 6 [patent_no_of_words] => 3568 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17034200 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/034200
Vane having rib aligned with aerodynamic load vector Sep 27, 2020 Issued
Array ( [id] => 17378614 [patent_doc_number] => 11236615 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-02-01 [patent_title] => Stator assembly for compressor mid-plane rotor balancing and sealing in gas turbine engine [patent_app_type] => utility [patent_app_number] => 17/009469 [patent_app_country] => US [patent_app_date] => 2020-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 13 [patent_no_of_words] => 5340 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17009469 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/009469
Stator assembly for compressor mid-plane rotor balancing and sealing in gas turbine engine Aug 31, 2020 Issued
Array ( [id] => 17370849 [patent_doc_number] => 20220025901 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-27 [patent_title] => FAN FRAME STRUCTURE [patent_app_type] => utility [patent_app_number] => 16/939063 [patent_app_country] => US [patent_app_date] => 2020-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1568 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16939063 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/939063
FAN FRAME STRUCTURE Jul 26, 2020 Abandoned
Array ( [id] => 17251625 [patent_doc_number] => 11187102 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-30 [patent_title] => Method and system for mitigating bowed rotor operation of gas turbine engine [patent_app_type] => utility [patent_app_number] => 16/931857 [patent_app_country] => US [patent_app_date] => 2020-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5378 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16931857 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/931857
Method and system for mitigating bowed rotor operation of gas turbine engine Jul 16, 2020 Issued
Array ( [id] => 16540170 [patent_doc_number] => 20200406583 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-31 [patent_title] => STRUCTURE ADAPTED TO TRAVERSE A FLUID ENVIRONMENT AND METHOD OF RETROFITTING STRUCTURE ADAPTED TO TRAVERSE A FLUID ENVIRONMENT [patent_app_type] => utility [patent_app_number] => 16/924957 [patent_app_country] => US [patent_app_date] => 2020-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3382 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16924957 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/924957
Structure adapted to traverse a fluid environment and method of retrofitting structure adapted to traverse a fluid environment Jul 8, 2020 Issued
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