Search

Celia C. Chang

Examiner (ID: 14843, Phone: (571)272-0679 , Office: P/1625 )

Most Active Art Unit
1625
Art Unit(s)
2899, 1612, 1203, 1625, 1202
Total Applications
3041
Issued Applications
1838
Pending Applications
177
Abandoned Applications
1031

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20486468 [patent_doc_number] => 20260022666 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-22 [patent_title] => CIRCUMFERENTIALLY VARYING FAN CASING TREATMENTS FOR REDUCING FAN NOISE EFFECTS [patent_app_type] => utility [patent_app_number] => 19/344614 [patent_app_country] => US [patent_app_date] => 2025-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5422 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19344614 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/344614
CIRCUMFERENTIALLY VARYING FAN CASING TREATMENTS FOR REDUCING FAN NOISE EFFECTS Sep 29, 2025 Pending
Array ( [id] => 20615608 [patent_doc_number] => 20260085698 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-26 [patent_title] => ARTICULATING PUMP FOR SUBMERGING INTO A FLUID RESERVOIR [patent_app_type] => utility [patent_app_number] => 19/340064 [patent_app_country] => US [patent_app_date] => 2025-09-25 [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] => -17 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19340064 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/340064
ARTICULATING PUMP FOR SUBMERGING INTO A FLUID RESERVOIR Sep 24, 2025 Pending
Array ( [id] => 20569219 [patent_doc_number] => 20260063141 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-05 [patent_title] => VENTILATION FAN TRIM RING AND SYSTEM [patent_app_type] => utility [patent_app_number] => 19/303976 [patent_app_country] => US [patent_app_date] => 2025-08-19 [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] => -18 [patent_words_short_claim] => 43 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19303976 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/303976
VENTILATION FAN TRIM RING AND SYSTEM Aug 18, 2025 Pending
Array ( [id] => 20512040 [patent_doc_number] => 20260036141 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-05 [patent_title] => AIR GUIDE FRAME, FAN HEAD, AND HANDHELD CONCENTRATING FAN [patent_app_type] => utility [patent_app_number] => 19/299774 [patent_app_country] => US [patent_app_date] => 2025-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2635 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19299774 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/299774
Air guide frame, fan head, and handheld concentrating fan Aug 13, 2025 Issued
Array ( [id] => 20393972 [patent_doc_number] => 20250369447 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-04 [patent_title] => Diversion system assembly for miniature fan [patent_app_type] => utility [patent_app_number] => 19/297800 [patent_app_country] => US [patent_app_date] => 2025-08-12 [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] => -3 [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] => 19297800 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/297800
Diversion system assembly for miniature fan Aug 11, 2025 Pending
Array ( [id] => 20439172 [patent_doc_number] => 12510001 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Turbine shroud and turbomachine with cooling circuit [patent_app_type] => utility [patent_app_number] => 19/297400 [patent_app_country] => US [patent_app_date] => 2025-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 26 [patent_figures_cnt] => 31 [patent_no_of_words] => 7240 [patent_no_of_claims] => 20 [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] => 19297400 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/297400
Turbine shroud and turbomachine with cooling circuit Aug 11, 2025 Issued
Array ( [id] => 20512043 [patent_doc_number] => 20260036144 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-05 [patent_title] => BLOWER [patent_app_type] => utility [patent_app_number] => 19/284696 [patent_app_country] => US [patent_app_date] => 2025-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2361 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19284696 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/284696
BLOWER Jul 29, 2025 Pending
Array ( [id] => 20364687 [patent_doc_number] => 20250354499 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-20 [patent_title] => SEAL SUPPORT ASSEMBLY FOR A TURBINE ENGINE [patent_app_type] => utility [patent_app_number] => 19/284766 [patent_app_country] => US [patent_app_date] => 2025-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 45146 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19284766 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/284766
Seal support assembly for a turbine engine Jul 29, 2025 Issued
Array ( [id] => 20542704 [patent_doc_number] => 20260049594 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-19 [patent_title] => MODULAR THERMOPLASTIC WEB STRUCTURE FOR WIND POWER GENERATION, MANUFACTURING METHOD THEREFOR, AND WIND TURBINE BLADE [patent_app_type] => utility [patent_app_number] => 19/286196 [patent_app_country] => US [patent_app_date] => 2025-07-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 909 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19286196 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/286196
MODULAR THERMOPLASTIC WEB STRUCTURE FOR WIND POWER GENERATION, MANUFACTURING METHOD THEREFOR, AND WIND TURBINE BLADE Jul 29, 2025 Pending
Array ( [id] => 20512041 [patent_doc_number] => 20260036142 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-05 [patent_title] => AXIAL FAN [patent_app_type] => utility [patent_app_number] => 19/283753 [patent_app_country] => US [patent_app_date] => 2025-07-29 [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] => -13 [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] => 19283753 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/283753
AXIAL FAN Jul 28, 2025 Pending
Array ( [id] => 20350438 [patent_doc_number] => 20250347290 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => COMPRESSOR WITH BYPASS FOR INTERSTAGE PASSAGE [patent_app_type] => utility [patent_app_number] => 19/277394 [patent_app_country] => US [patent_app_date] => 2025-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1191 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19277394 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/277394
Compressor with bypass for interstage passage Jul 22, 2025 Issued
Array ( [id] => 20439171 [patent_doc_number] => 12510000 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Self-metering impingement plate [patent_app_type] => utility [patent_app_number] => 19/276714 [patent_app_country] => US [patent_app_date] => 2025-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 222 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19276714 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/276714
Self-metering impingement plate Jul 21, 2025 Issued
Array ( [id] => 20220552 [patent_doc_number] => 20250283483 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-11 [patent_title] => TURBINE ENGINE WITH COMPOSITE AIRFOILS [patent_app_type] => utility [patent_app_number] => 19/214362 [patent_app_country] => US [patent_app_date] => 2025-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16830 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 280 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19214362 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/214362
Turbine engine with composite airfoils May 20, 2025 Issued
Array ( [id] => 20549315 [patent_doc_number] => 12560099 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-24 [patent_title] => Turbine for turbomachine [patent_app_type] => utility [patent_app_number] => 19/211604 [patent_app_country] => US [patent_app_date] => 2025-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 2162 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19211604 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/211604
Turbine for turbomachine May 18, 2025 Issued
Array ( [id] => 20180149 [patent_doc_number] => 20250264107 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-21 [patent_title] => COMPUTERIZED SYSTEMS AND METHODS FOR AUTOMATIC CEILING FAN OPERATION [patent_app_type] => utility [patent_app_number] => 19/197236 [patent_app_country] => US [patent_app_date] => 2025-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5556 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19197236 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/197236
COMPUTERIZED SYSTEMS AND METHODS FOR AUTOMATIC CEILING FAN OPERATION May 1, 2025 Pending
Array ( [id] => 20555995 [patent_doc_number] => 20260055775 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-26 [patent_title] => FAN MECHANISM [patent_app_type] => utility [patent_app_number] => 19/195854 [patent_app_country] => US [patent_app_date] => 2025-05-01 [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] => -19 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19195854 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/195854
FAN MECHANISM Apr 30, 2025 Issued
Array ( [id] => 20350441 [patent_doc_number] => 20250347293 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => IMPELLER [patent_app_type] => utility [patent_app_number] => 19/196685 [patent_app_country] => US [patent_app_date] => 2025-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4391 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 19196685 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/196685
IMPELLER Apr 30, 2025 Pending
19/124743 PITCH-CHANGE MECHANISM WITH INVERSE KINEMATICS Apr 24, 2025 Pending
Array ( [id] => 20151065 [patent_doc_number] => 20250250903 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-07 [patent_title] => TURBINE ENGINE WITH COMPOSITE AIRFOILS [patent_app_type] => utility [patent_app_number] => 19/186966 [patent_app_country] => US [patent_app_date] => 2025-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18656 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 313 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19186966 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/186966
Turbine engine with composite airfoils Apr 22, 2025 Issued
Array ( [id] => 20165621 [patent_doc_number] => 20250257667 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-14 [patent_title] => VARIABLE FLOWPATH CASINGS FOR BLADE TIP CLEARANCE CONTROL [patent_app_type] => utility [patent_app_number] => 19/184842 [patent_app_country] => US [patent_app_date] => 2025-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9004 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19184842 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/184842
VARIABLE FLOWPATH CASINGS FOR BLADE TIP CLEARANCE CONTROL Apr 20, 2025 Pending
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