Search

Stephen J. Yanchuk

Examiner (ID: 1210, Phone: (571)270-7343 , Office: P/1723 )

Most Active Art Unit
1723
Art Unit(s)
1729, 1752, 1723, 1795
Total Applications
577
Issued Applications
282
Pending Applications
29
Abandoned Applications
263

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20630562 [patent_doc_number] => 20260094850 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-04-02 [patent_title] => PEM FUEL CELL STACK [patent_app_type] => utility [patent_app_number] => 19/347351 [patent_app_country] => US [patent_app_date] => 2025-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7520 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 19347351 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/347351
PEM FUEL CELL STACK Sep 30, 2025 Pending
Array ( [id] => 20298134 [patent_doc_number] => 20250323377 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE [patent_app_type] => utility [patent_app_number] => 19/250917 [patent_app_country] => US [patent_app_date] => 2025-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12477 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [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] => 19250917 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/250917
BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE Jun 25, 2025 Pending
Array ( [id] => 19804490 [patent_doc_number] => 20250070415 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => Electrode Having Excellent Weldability Between Electrode Lead and Electrode Tab and Method of Manufacturing the Same [patent_app_type] => utility [patent_app_number] => 18/938754 [patent_app_country] => US [patent_app_date] => 2024-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5981 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18938754 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/938754
Electrode Having Excellent Weldability Between Electrode Lead and Electrode Tab and Method of Manufacturing the Same Nov 5, 2024 Pending
Array ( [id] => 19749802 [patent_doc_number] => 20250038367 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => BATTERY CELL, BATTERY, AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 18/912866 [patent_app_country] => US [patent_app_date] => 2024-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5460 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 265 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18912866 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/912866
Battery cell with overlap between insulator and connector, battery, and electronic device Oct 10, 2024 Issued
Array ( [id] => 20333020 [patent_doc_number] => 12463306 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Method for assembling pole terminal of cylindrical battery [patent_app_type] => utility [patent_app_number] => 18/894089 [patent_app_country] => US [patent_app_date] => 2024-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18894089 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/894089
Method for assembling pole terminal of cylindrical battery Sep 23, 2024 Issued
Array ( [id] => 20624945 [patent_doc_number] => 12592458 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-31 [patent_title] => Battery cell with overlap between insulator and connector, battery, and electronic device [patent_app_type] => utility [patent_app_number] => 18/651842 [patent_app_country] => US [patent_app_date] => 2024-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 286 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18651842 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/651842
Battery cell with overlap between insulator and connector, battery, and electronic device Apr 30, 2024 Issued
Array ( [id] => 19146818 [patent_doc_number] => 20240145860 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => VAPOR PRESSURE BARRIERS FOR LEAD ACID BATTERIES FOR IMPROVED WATER LOSS PERFORMANCE, SEPARATORS, SYSTEMS, AND METHODS OF MANUFACTURE AND USE THEREOF [patent_app_type] => utility [patent_app_number] => 18/408058 [patent_app_country] => US [patent_app_date] => 2024-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4588 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18408058 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/408058
VAPOR PRESSURE BARRIERS FOR LEAD ACID BATTERIES FOR IMPROVED WATER LOSS PERFORMANCE, SEPARATORS, SYSTEMS, AND METHODS OF MANUFACTURE AND USE THEREOF Jan 8, 2024 Abandoned
Array ( [id] => 19421272 [patent_doc_number] => 20240297396 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-05 [patent_title] => ENERGY STORAGE APPARATUS AND POWER-CONSUMING DEVICE [patent_app_type] => utility [patent_app_number] => 18/532593 [patent_app_country] => US [patent_app_date] => 2023-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10808 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 534 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18532593 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/532593
Energy storage apparatus and power-consuming device Dec 6, 2023 Issued
Array ( [id] => 19206571 [patent_doc_number] => 20240178470 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => RECYCLING METHOD FOR TREATING USED BATTERIES, IN PARTICULAR RECHARGEABLE BATTERIES, AND BATTERY PROCESSING INSTALLATION [patent_app_type] => utility [patent_app_number] => 18/377011 [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] => 9258 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 18377011 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/377011
RECYCLING METHOD FOR TREATING USED BATTERIES, IN PARTICULAR RECHARGEABLE BATTERIES, AND BATTERY PROCESSING INSTALLATION Oct 4, 2023 Pending
Array ( [id] => 18566136 [patent_doc_number] => 20230256464 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => GAS ADSORPTION APPARATUS, END CAP ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE [patent_app_type] => utility [patent_app_number] => 18/301261 [patent_app_country] => US [patent_app_date] => 2023-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7051 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18301261 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/301261
Gas adsorption apparatus, end cap assembly, battery cell, battery, and electrical device Aug 24, 2023 Issued
Array ( [id] => 18821611 [patent_doc_number] => 20230395952 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-07 [patent_title] => BATTERY CELL, BATTERY AND ELECTRICAL DEVICE [patent_app_type] => utility [patent_app_number] => 18/449511 [patent_app_country] => US [patent_app_date] => 2023-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9134 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18449511 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/449511
BATTERY CELL, BATTERY AND ELECTRICAL DEVICE Aug 13, 2023 Pending
Array ( [id] => 19828943 [patent_doc_number] => 12249739 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-11 [patent_title] => Three-dimensional battery having current-reducing devices corresponding to electrodes [patent_app_type] => utility [patent_app_number] => 18/220690 [patent_app_country] => US [patent_app_date] => 2023-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 3487 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 297 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18220690 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/220690
Three-dimensional battery having current-reducing devices corresponding to electrodes Jul 10, 2023 Issued
Array ( [id] => 19038587 [patent_doc_number] => 20240088402 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => Solid Oxide Cell [patent_app_type] => utility [patent_app_number] => 18/346038 [patent_app_country] => US [patent_app_date] => 2023-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12834 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18346038 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/346038
Solid Oxide Cell Jun 29, 2023 Pending
Array ( [id] => 19546892 [patent_doc_number] => 20240363928 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-31 [patent_title] => Battery Assembly [patent_app_type] => utility [patent_app_number] => 18/337824 [patent_app_country] => US [patent_app_date] => 2023-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10039 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 18337824 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/337824
Battery assembly with improved thermal propagation management Jun 19, 2023 Issued
Array ( [id] => 19893419 [patent_doc_number] => 20250118731 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-10 [patent_title] => ANODE MATERIAL, PREPARATION METHOD THEREOF, AND LITHIUM ION BATTERY [patent_app_type] => utility [patent_app_number] => 18/551587 [patent_app_country] => US [patent_app_date] => 2023-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13055 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18551587 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/551587
ANODE MATERIAL, PREPARATION METHOD THEREOF, AND LITHIUM ION BATTERY May 18, 2023 Pending
Array ( [id] => 19176606 [patent_doc_number] => 20240162580 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-16 [patent_title] => TERMINAL ASSEMBLY, TOP COVER ASSEMBLY, ENERGY STORAGE DEVICE AND ELECTRICAL EQUIPMENT [patent_app_type] => utility [patent_app_number] => 18/121750 [patent_app_country] => US [patent_app_date] => 2023-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6764 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 18121750 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/121750
TERMINAL ASSEMBLY, TOP COVER ASSEMBLY, ENERGY STORAGE DEVICE AND ELECTRICAL EQUIPMENT Mar 14, 2023 Abandoned
Array ( [id] => 20624946 [patent_doc_number] => 12592459 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-31 [patent_title] => Adapter component, battery cell, battery, electrical device, and method and device for manufacturing battery cell [patent_app_type] => utility [patent_app_number] => 18/106511 [patent_app_country] => US [patent_app_date] => 2023-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 12 [patent_no_of_words] => 4650 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 248 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18106511 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/106511
Adapter component, battery cell, battery, electrical device, and method and device for manufacturing battery cell Feb 6, 2023 Issued
Array ( [id] => 18500762 [patent_doc_number] => 20230223564 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-13 [patent_title] => BIPOLAR PLATE FOR FUEL CELL AND FUEL CELL INCLUDING THE SAME [patent_app_type] => utility [patent_app_number] => 18/085325 [patent_app_country] => US [patent_app_date] => 2022-12-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6220 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18085325 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/085325
BIPOLAR PLATE FOR FUEL CELL AND FUEL CELL INCLUDING THE SAME Dec 19, 2022 Pending
Array ( [id] => 18285308 [patent_doc_number] => 20230100780 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => SOLID STATE BATTERY [patent_app_type] => utility [patent_app_number] => 18/062070 [patent_app_country] => US [patent_app_date] => 2022-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11609 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18062070 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/062070
SOLID STATE BATTERY Dec 5, 2022 Pending
Array ( [id] => 18040697 [patent_doc_number] => 20220384914 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-01 [patent_title] => Battery Tab Connection Structure and A Battery Pack [patent_app_type] => utility [patent_app_number] => 17/749094 [patent_app_country] => US [patent_app_date] => 2022-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3373 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17749094 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/749094
Battery Tab Connection Structure and A Battery Pack May 18, 2022 Abandoned
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