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Stephen Choi

Examiner (ID: 17036)

Most Active Art Unit
3724
Art Unit(s)
3724
Total Applications
1429
Issued Applications
917
Pending Applications
43
Abandoned Applications
469

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19864214 [patent_doc_number] => 20250103000 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => CARTRIDGE AND IMAGE FORMING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/904259 [patent_app_country] => US [patent_app_date] => 2024-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 155038 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 355 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18904259 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/904259
CARTRIDGE AND IMAGE FORMING APPARATUS Oct 1, 2024 Pending
Array ( [id] => 19985355 [patent_doc_number] => 20250123577 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-17 [patent_title] => DRUM CARTRIDGE [patent_app_type] => utility [patent_app_number] => 18/898355 [patent_app_country] => US [patent_app_date] => 2024-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1137 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 334 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18898355 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/898355
DRUM CARTRIDGE Sep 25, 2024 Pending
Array ( [id] => 19694643 [patent_doc_number] => 20250013188 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => CARTRIDGE AND DRUM UNIT FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/897197 [patent_app_country] => US [patent_app_date] => 2024-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24052 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 18897197 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/897197
CARTRIDGE AND DRUM UNIT FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS Sep 25, 2024 Pending
Array ( [id] => 20647064 [patent_doc_number] => 12602006 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-14 [patent_title] => Cartridge and image forming apparatus [patent_app_type] => utility [patent_app_number] => 18/895625 [patent_app_country] => US [patent_app_date] => 2024-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 323 [patent_figures_cnt] => 323 [patent_no_of_words] => 145955 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 397 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18895625 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/895625
Cartridge and image forming apparatus Sep 24, 2024 Issued
Array ( [id] => 20415365 [patent_doc_number] => 12498646 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Electrophotographic conductive member, process cartridge, and electrophotographic image forming apparatus [patent_app_type] => utility [patent_app_number] => 18/891144 [patent_app_country] => US [patent_app_date] => 2024-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 16109 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 319 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18891144 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/891144
Electrophotographic conductive member, process cartridge, and electrophotographic image forming apparatus Sep 19, 2024 Issued
Array ( [id] => 19864215 [patent_doc_number] => 20250103001 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => IMAGE FORMING APPARATUS AND CARTRIDGE [patent_app_type] => utility [patent_app_number] => 18/889161 [patent_app_country] => US [patent_app_date] => 2024-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14602 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18889161 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/889161
IMAGE FORMING APPARATUS AND CARTRIDGE Sep 17, 2024 Pending
Array ( [id] => 19833873 [patent_doc_number] => 20250085659 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => PROCESS CARTRIDGE [patent_app_type] => utility [patent_app_number] => 18/883375 [patent_app_country] => US [patent_app_date] => 2024-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 22124 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 328 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18883375 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/883375
Process cartridge Sep 11, 2024 Issued
Array ( [id] => 19660216 [patent_doc_number] => 20240427281 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => IMAGE FORMING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/828132 [patent_app_country] => US [patent_app_date] => 2024-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14406 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 18828132 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/828132
IMAGE FORMING APPARATUS Sep 8, 2024 Pending
Array ( [id] => 19818580 [patent_doc_number] => 20250076787 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => IMAGE FORMING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/811927 [patent_app_country] => US [patent_app_date] => 2024-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 39483 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -56 [patent_words_short_claim] => 311 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18811927 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/811927
Image forming apparatus Aug 21, 2024 Issued
Array ( [id] => 19632793 [patent_doc_number] => 20240411242 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => DEVELOPER SUPPLY CONTAINER AND DEVELOPER SUPPLYING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/809545 [patent_app_country] => US [patent_app_date] => 2024-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 35528 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [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] => 18809545 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/809545
DEVELOPER SUPPLY CONTAINER AND DEVELOPER SUPPLYING SYSTEM Aug 19, 2024 Issued
Array ( [id] => 20303768 [patent_doc_number] => 12449754 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Image forming apparatus [patent_app_type] => utility [patent_app_number] => 18/804425 [patent_app_country] => US [patent_app_date] => 2024-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 16960 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18804425 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/804425
Image forming apparatus Aug 13, 2024 Issued
Array ( [id] => 20440011 [patent_doc_number] => 12510846 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Developing device [patent_app_type] => utility [patent_app_number] => 18/802279 [patent_app_country] => US [patent_app_date] => 2024-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 27 [patent_no_of_words] => 1089 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18802279 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/802279
Developing device Aug 12, 2024 Issued
Array ( [id] => 19833868 [patent_doc_number] => 20250085654 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => DRIVE TRANSMITTER, DRIVE DEVICE, AND IMAGE FORMING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/800455 [patent_app_country] => US [patent_app_date] => 2024-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14959 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18800455 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/800455
DRIVE TRANSMITTER, DRIVE DEVICE, AND IMAGE FORMING APPARATUS Aug 11, 2024 Issued
Array ( [id] => 19616963 [patent_doc_number] => 20240402643 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => IMAGE FORMING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/797728 [patent_app_country] => US [patent_app_date] => 2024-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17296 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 351 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18797728 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/797728
Image forming apparatus Aug 7, 2024 Issued
Array ( [id] => 20440017 [patent_doc_number] => 12510852 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Image forming apparatus [patent_app_type] => utility [patent_app_number] => 18/786681 [patent_app_country] => US [patent_app_date] => 2024-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 2400 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 273 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18786681 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/786681
Image forming apparatus Jul 28, 2024 Issued
Array ( [id] => 20344520 [patent_doc_number] => 12468249 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => Two-component developing type image forming apparatus provided with an image carrying member having an organic photosensitive layer [patent_app_type] => utility [patent_app_number] => 18/783654 [patent_app_country] => US [patent_app_date] => 2024-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 1122 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 346 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18783654 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/783654
Two-component developing type image forming apparatus provided with an image carrying member having an organic photosensitive layer Jul 24, 2024 Issued
Array ( [id] => 20550086 [patent_doc_number] => 12560875 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-24 [patent_title] => Exposure apparatus, image-forming apparatus and manufacturing method [patent_app_type] => utility [patent_app_number] => 18/783123 [patent_app_country] => US [patent_app_date] => 2024-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 15 [patent_no_of_words] => 2348 [patent_no_of_claims] => 10 [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] => 18783123 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/783123
Exposure apparatus, image-forming apparatus and manufacturing method Jul 23, 2024 Issued
Array ( [id] => 20358671 [patent_doc_number] => 12474664 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-18 [patent_title] => Image forming apparatus [patent_app_type] => utility [patent_app_number] => 18/782745 [patent_app_country] => US [patent_app_date] => 2024-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 4619 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18782745 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/782745
Image forming apparatus Jul 23, 2024 Issued
Array ( [id] => 19573480 [patent_doc_number] => 20240377772 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => IMAGE FORMING APPARATUS AND DEVELOPING CARTRIDGE [patent_app_type] => utility [patent_app_number] => 18/781110 [patent_app_country] => US [patent_app_date] => 2024-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 35159 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 18781110 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/781110
Image forming apparatus and developing cartridge Jul 22, 2024 Issued
Array ( [id] => 19544675 [patent_doc_number] => 20240361711 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-31 [patent_title] => IMAGE FORMING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/770805 [patent_app_country] => US [patent_app_date] => 2024-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10491 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 379 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18770805 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/770805
IMAGE FORMING APPARATUS Jul 11, 2024 Pending
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