Search

Celia C Chang

Examiner (ID: 4542, Phone: (571)272-0679 , Office: P/1625 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20235639 [patent_doc_number] => 20250292958 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-18 [patent_title] => Magnetic Structures For Low Leakage Inductance And Very High Efficiency [patent_app_type] => utility [patent_app_number] => 19/227373 [patent_app_country] => US [patent_app_date] => 2025-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10795 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 299 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19227373 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/227373
Magnetic structures for low leakage inductance and very high efficiency Jun 2, 2025 Issued
Array ( [id] => 19335444 [patent_doc_number] => 20240249874 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => SURFACE-MOUNTED MAGNETIC-COMPONENT MODULE [patent_app_type] => utility [patent_app_number] => 18/626578 [patent_app_country] => US [patent_app_date] => 2024-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5061 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18626578 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/626578
Surface-mounted magnetic-component module Apr 3, 2024 Issued
Array ( [id] => 19269198 [patent_doc_number] => 20240212902 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => INDUCTOR AND EMI FILTER INCLUDING THE SAME [patent_app_type] => utility [patent_app_number] => 18/601098 [patent_app_country] => US [patent_app_date] => 2024-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17353 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18601098 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/601098
Inductor and EMI filter including the same Mar 10, 2024 Issued
Array ( [id] => 19912420 [patent_doc_number] => 12288639 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-29 [patent_title] => Coil component and method of manufacturing the same [patent_app_type] => utility [patent_app_number] => 18/427136 [patent_app_country] => US [patent_app_date] => 2024-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1247 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 207 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18427136 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/427136
Coil component and method of manufacturing the same Jan 29, 2024 Issued
Array ( [id] => 19610869 [patent_doc_number] => 12159749 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-03 [patent_title] => Transformer module and power module [patent_app_type] => utility [patent_app_number] => 18/493818 [patent_app_country] => US [patent_app_date] => 2023-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 53 [patent_no_of_words] => 15567 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 264 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18493818 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/493818
Transformer module and power module Oct 24, 2023 Issued
Array ( [id] => 19487171 [patent_doc_number] => 12106895 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-01 [patent_title] => Transformer module and power module [patent_app_type] => utility [patent_app_number] => 18/492801 [patent_app_country] => US [patent_app_date] => 2023-10-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 28 [patent_figures_cnt] => 53 [patent_no_of_words] => 15564 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 321 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18492801 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/492801
Transformer module and power module Oct 23, 2023 Issued
Array ( [id] => 19964737 [patent_doc_number] => 12334254 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-17 [patent_title] => Coil component, circuit board, and electronic device [patent_app_type] => utility [patent_app_number] => 18/487576 [patent_app_country] => US [patent_app_date] => 2023-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 2490 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [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] => 18487576 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/487576
Coil component, circuit board, and electronic device Oct 15, 2023 Issued
Array ( [id] => 19654334 [patent_doc_number] => 12176134 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-24 [patent_title] => Multilayer coil component [patent_app_type] => utility [patent_app_number] => 18/378815 [patent_app_country] => US [patent_app_date] => 2023-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 11001 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18378815 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/378815
Multilayer coil component Oct 10, 2023 Issued
Array ( [id] => 18943301 [patent_doc_number] => 20240038440 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => COIL MODULE [patent_app_type] => utility [patent_app_number] => 18/481530 [patent_app_country] => US [patent_app_date] => 2023-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 40107 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18481530 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/481530
Coil module Oct 4, 2023 Issued
Array ( [id] => 18882750 [patent_doc_number] => 20240006119 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => Magnetic Structures For Low Leakage Inductance And Very High Efficiency [patent_app_type] => utility [patent_app_number] => 18/368513 [patent_app_country] => US [patent_app_date] => 2023-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10274 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18368513 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/368513
Magnetic structures for low leakage inductance and very high efficiency Sep 13, 2023 Issued
Array ( [id] => 19741053 [patent_doc_number] => 12217894 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-04 [patent_title] => Rotary variable differential transformer [patent_app_type] => utility [patent_app_number] => 18/334162 [patent_app_country] => US [patent_app_date] => 2023-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5679 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18334162 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/334162
Rotary variable differential transformer Jun 12, 2023 Issued
Array ( [id] => 18679685 [patent_doc_number] => 20230317342 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => MULTILAYER COIL COMPONENT [patent_app_type] => utility [patent_app_number] => 18/206202 [patent_app_country] => US [patent_app_date] => 2023-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4491 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18206202 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/206202
Multilayer coil component Jun 5, 2023 Issued
Array ( [id] => 19229497 [patent_doc_number] => 12009139 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-11 [patent_title] => High current swing-type inductor and methods of fabrication [patent_app_type] => utility [patent_app_number] => 18/191786 [patent_app_country] => US [patent_app_date] => 2023-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 23 [patent_no_of_words] => 8930 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 224 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18191786 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/191786
High current swing-type inductor and methods of fabrication Mar 27, 2023 Issued
Array ( [id] => 18472899 [patent_doc_number] => 20230207187 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-29 [patent_title] => SURFACE MOUNT INDUCTOR AND METHOD FOR MANUFACTURING THE SAME [patent_app_type] => utility [patent_app_number] => 18/179896 [patent_app_country] => US [patent_app_date] => 2023-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6009 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18179896 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/179896
Surface mount inductor and method for manufacturing the same Mar 6, 2023 Issued
Array ( [id] => 18743244 [patent_doc_number] => 20230352232 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => COIL DEVICE AND METHOD OF MANUFACTURING COIL DEVICE [patent_app_type] => utility [patent_app_number] => 18/156239 [patent_app_country] => US [patent_app_date] => 2023-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8322 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18156239 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/156239
COIL DEVICE AND METHOD OF MANUFACTURING COIL DEVICE Jan 17, 2023 Pending
Array ( [id] => 18394687 [patent_doc_number] => 20230162908 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => COIL COMPONENT [patent_app_type] => utility [patent_app_number] => 18/095172 [patent_app_country] => US [patent_app_date] => 2023-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5775 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18095172 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/095172
Coil component Jan 9, 2023 Issued
Array ( [id] => 18533098 [patent_doc_number] => 20230238173 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => MAGNETIC DEVICE AND ELECTRONIC DEVICE WITH SAME [patent_app_type] => utility [patent_app_number] => 18/094745 [patent_app_country] => US [patent_app_date] => 2023-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14766 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 447 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18094745 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/094745
MAGNETIC DEVICE AND ELECTRONIC DEVICE WITH SAME Jan 8, 2023 Pending
Array ( [id] => 18456046 [patent_doc_number] => 20230197327 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => COIL COMPONENT, CIRCUIT BOARD ARRANGEMENT AND ELECTRONIC EQUIPMENT [patent_app_type] => utility [patent_app_number] => 18/063620 [patent_app_country] => US [patent_app_date] => 2022-12-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7398 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18063620 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/063620
COIL COMPONENT, CIRCUIT BOARD ARRANGEMENT AND ELECTRONIC EQUIPMENT Dec 7, 2022 Pending
Array ( [id] => 18555127 [patent_doc_number] => 20230253144 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-10 [patent_title] => TWISTED-CORE TYPE LOW-PROFILE COUPLED INDUCTOR [patent_app_type] => utility [patent_app_number] => 18/061302 [patent_app_country] => US [patent_app_date] => 2022-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9135 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18061302 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/061302
TWISTED-CORE TYPE LOW-PROFILE COUPLED INDUCTOR Dec 1, 2022 Pending
Array ( [id] => 18394686 [patent_doc_number] => 20230162907 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => COIL DEVICE [patent_app_type] => utility [patent_app_number] => 17/986033 [patent_app_country] => US [patent_app_date] => 2022-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11055 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17986033 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/986033
COIL DEVICE Nov 13, 2022 Pending
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