Search

William C. Choi

Examiner (ID: 12128, Phone: (571)272-2324 , Office: P/2872 )

Most Active Art Unit
2872
Art Unit(s)
2872, 2873
Total Applications
2398
Issued Applications
2207
Pending Applications
103
Abandoned Applications
131

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19125242 [patent_doc_number] => 20240130595 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => AUTOMATIC CLEANING DEVICE [patent_app_type] => utility [patent_app_number] => 18/546647 [patent_app_country] => US [patent_app_date] => 2022-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18146 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18546647 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/546647
AUTOMATIC CLEANING DEVICE Feb 8, 2022 Pending
Array ( [id] => 19125240 [patent_doc_number] => 20240130593 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => AUTOMATIC CLEANING DEVICE [patent_app_type] => utility [patent_app_number] => 18/276815 [patent_app_country] => US [patent_app_date] => 2022-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13959 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18276815 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/276815
AUTOMATIC CLEANING DEVICE Feb 7, 2022 Pending
Array ( [id] => 19156678 [patent_doc_number] => 20240149385 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-09 [patent_title] => ABRASIVE TOOLS FOR GRINDING AND POLISHING CONCRETE SURFACES [patent_app_type] => utility [patent_app_number] => 18/280055 [patent_app_country] => US [patent_app_date] => 2022-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4208 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18280055 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/280055
ABRASIVE TOOLS FOR GRINDING AND POLISHING CONCRETE SURFACES Feb 6, 2022 Pending
Array ( [id] => 19001438 [patent_doc_number] => 20240065509 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => AUTONOMOUS SURFACE TREATMENT APPARATUS [patent_app_type] => utility [patent_app_number] => 18/273508 [patent_app_country] => US [patent_app_date] => 2021-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10251 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18273508 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/273508
Autonomous surface treatment apparatus Dec 13, 2021 Issued
Array ( [id] => 18436643 [patent_doc_number] => 20230183937 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => SEGMENTED TRENCHING BLADE [patent_app_type] => utility [patent_app_number] => 17/547833 [patent_app_country] => US [patent_app_date] => 2021-12-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11047 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17547833 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/547833
SEGMENTED TRENCHING BLADE Dec 9, 2021 Pending
Array ( [id] => 18970119 [patent_doc_number] => 20240050211 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => POWER TOOTHBRUSH CONTROL [patent_app_type] => utility [patent_app_number] => 18/266234 [patent_app_country] => US [patent_app_date] => 2021-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6430 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 18266234 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/266234
Power toothbrush control Dec 5, 2021 Issued
Array ( [id] => 18818059 [patent_doc_number] => 20230392399 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-07 [patent_title] => DEVICE FOR REMOVING BUILDING MATERIAL [patent_app_type] => utility [patent_app_number] => 18/250943 [patent_app_country] => US [patent_app_date] => 2021-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5069 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18250943 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/250943
DEVICE FOR REMOVING BUILDING MATERIAL Nov 17, 2021 Pending
Array ( [id] => 19066219 [patent_doc_number] => 20240100645 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-28 [patent_title] => POWER TOOL HAVING A FRONT HANDLE AND A REGULATING UNIT [patent_app_type] => utility [patent_app_number] => 18/038480 [patent_app_country] => US [patent_app_date] => 2021-11-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4325 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 18038480 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/038480
POWER TOOL HAVING A FRONT HANDLE AND A REGULATING UNIT Nov 10, 2021 Pending
Array ( [id] => 18738565 [patent_doc_number] => 20230347482 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => ORIENTATION SENSOR FOR GUIDED OPERATION OF HYDRAULIC TORQUE WRENCH [patent_app_type] => utility [patent_app_number] => 18/026761 [patent_app_country] => US [patent_app_date] => 2021-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9660 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -28 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18026761 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/026761
ORIENTATION SENSOR FOR GUIDED OPERATION OF HYDRAULIC TORQUE WRENCH Oct 14, 2021 Pending
Array ( [id] => 18724919 [patent_doc_number] => 20230339082 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-26 [patent_title] => HAZARD DETECTION FOR TORQUE WRENCH [patent_app_type] => utility [patent_app_number] => 18/026764 [patent_app_country] => US [patent_app_date] => 2021-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4575 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18026764 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/026764
HAZARD DETECTION FOR TORQUE WRENCH Oct 14, 2021 Pending
Array ( [id] => 19001437 [patent_doc_number] => 20240065508 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => WATER SHORTAGE DETECTION AND WATER SUPPLY SYSTEM FOR ROBOT CLEANER [patent_app_type] => utility [patent_app_number] => 18/268117 [patent_app_country] => US [patent_app_date] => 2021-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7458 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 18268117 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/268117
WATER SHORTAGE DETECTION AND WATER SUPPLY SYSTEM FOR ROBOT CLEANER Oct 13, 2021 Pending
Array ( [id] => 19280587 [patent_doc_number] => 20240217061 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => Polishing State Analysis Prediction Program, Storage Device, Cathodeluminescence Device, and Polishing State Analysis Prediction Method [patent_app_type] => utility [patent_app_number] => 18/044862 [patent_app_country] => US [patent_app_date] => 2021-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10223 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18044862 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/044862
Polishing State Analysis Prediction Program, Storage Device, Cathodeluminescence Device, and Polishing State Analysis Prediction Method Sep 14, 2021 Pending
Array ( [id] => 18496226 [patent_doc_number] => 20230218793 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-13 [patent_title] => DEVICE AND METHOD FOR CLEANING VEHICLE SURFACES [patent_app_type] => utility [patent_app_number] => 18/017120 [patent_app_country] => US [patent_app_date] => 2021-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5799 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18017120 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/017120
DEVICE AND METHOD FOR CLEANING VEHICLE SURFACES Aug 25, 2021 Pending
Array ( [id] => 20413413 [patent_doc_number] => 12496678 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Method of polishing silicon wafer and method of producing silicon wafer [patent_app_type] => utility [patent_app_number] => 18/257492 [patent_app_country] => US [patent_app_date] => 2021-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [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] => 18257492 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/257492
Method of polishing silicon wafer and method of producing silicon wafer Aug 24, 2021 Issued
Array ( [id] => 18256114 [patent_doc_number] => 20230083153 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-16 [patent_title] => BATTERY CELL JIG THAT BOLT-FASTENS THROUGH UNIFORM PRESSURE [patent_app_type] => utility [patent_app_number] => 17/799778 [patent_app_country] => US [patent_app_date] => 2021-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4945 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 17799778 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/799778
Battery cell jig that bolt-fastens through uniform pressure Aug 9, 2021 Issued
Array ( [id] => 18708216 [patent_doc_number] => 20230330802 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => FLAW GRINDING SYSTEM, FLAW GRINDING METHOD, AND STEEL-PRODUCT MANUFACTURING METHOD EMPLOYING THE FLAW GRINDING METHOD [patent_app_type] => utility [patent_app_number] => 18/027404 [patent_app_country] => US [patent_app_date] => 2021-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7743 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18027404 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/027404
FLAW GRINDING SYSTEM, FLAW GRINDING METHOD, AND STEEL-PRODUCT MANUFACTURING METHOD EMPLOYING THE FLAW GRINDING METHOD Jul 27, 2021 Pending
Array ( [id] => 18626076 [patent_doc_number] => 20230284855 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => ROBOT CLEANER [patent_app_type] => utility [patent_app_number] => 18/016633 [patent_app_country] => US [patent_app_date] => 2021-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18157 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18016633 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/016633
ROBOT CLEANER Jul 12, 2021 Pending
Array ( [id] => 18581097 [patent_doc_number] => 20230263348 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-24 [patent_title] => CLEANER STATION [patent_app_type] => utility [patent_app_number] => 18/012704 [patent_app_country] => US [patent_app_date] => 2021-07-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23532 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18012704 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/012704
CLEANER STATION Jul 4, 2021 Pending
Array ( [id] => 18626071 [patent_doc_number] => 20230284850 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => CLEANER STATION [patent_app_type] => utility [patent_app_number] => 18/013035 [patent_app_country] => US [patent_app_date] => 2021-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 26900 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18013035 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/013035
Cleaner station with cover opening unit Jul 1, 2021 Issued
Array ( [id] => 19110684 [patent_doc_number] => 20240122434 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => AUTOMATIC CLEANING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/276863 [patent_app_country] => US [patent_app_date] => 2021-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13670 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18276863 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/276863
AUTOMATIC CLEANING APPARATUS Jul 1, 2021 Pending
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