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] => 18484152 [patent_doc_number] => 20230211457 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-06 [patent_title] => AUTOMATIC ABRASION COMPENSATION SYSTEM OF LOWER PLATE AND WAFER LAPPING APPARATUS HAVING THE SAME [patent_app_type] => utility [patent_app_number] => 17/984537 [patent_app_country] => US [patent_app_date] => 2022-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2476 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17984537 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/984537
Automatic abrasion compensation system of lower plate and wafer lapping apparatus having the same Nov 9, 2022 Issued
Array ( [id] => 19171535 [patent_doc_number] => 20240157509 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-16 [patent_title] => ELECTRIC TOOL GRINDING MACHINE AND CASING THEREOF [patent_app_type] => utility [patent_app_number] => 17/984709 [patent_app_country] => US [patent_app_date] => 2022-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5614 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17984709 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/984709
Electric tool grinding machine and casing thereof Nov 9, 2022 Issued
Array ( [id] => 18230211 [patent_doc_number] => 20230069205 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-02 [patent_title] => VACUUM CLEANER AND MOLD DEVICE [patent_app_type] => utility [patent_app_number] => 17/984577 [patent_app_country] => US [patent_app_date] => 2022-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7000 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17984577 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/984577
VACUUM CLEANER AND MOLD DEVICE Nov 9, 2022 Pending
Array ( [id] => 18390410 [patent_doc_number] => 20230158628 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-25 [patent_title] => CREEP FEED GRINDING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/053855 [patent_app_country] => US [patent_app_date] => 2022-11-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8890 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18053855 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/053855
CREEP FEED GRINDING APPARATUS Nov 8, 2022 Pending
Array ( [id] => 18366644 [patent_doc_number] => 20230148235 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => AUTOMATIC MOP BUCKET [patent_app_type] => utility [patent_app_number] => 17/982800 [patent_app_country] => US [patent_app_date] => 2022-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4950 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17982800 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/982800
AUTOMATIC MOP BUCKET Nov 7, 2022 Abandoned
Array ( [id] => 19930834 [patent_doc_number] => 12304029 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-20 [patent_title] => Grinding wheel [patent_app_type] => utility [patent_app_number] => 18/053541 [patent_app_country] => US [patent_app_date] => 2022-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 16 [patent_no_of_words] => 2358 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 271 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18053541 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/053541
Grinding wheel Nov 7, 2022 Issued
Array ( [id] => 20114691 [patent_doc_number] => 12364374 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-22 [patent_title] => Surface cleaning device with odor control [patent_app_type] => utility [patent_app_number] => 17/980700 [patent_app_country] => US [patent_app_date] => 2022-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 17 [patent_no_of_words] => 2481 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17980700 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/980700
Surface cleaning device with odor control Nov 3, 2022 Issued
Array ( [id] => 20254430 [patent_doc_number] => 12426762 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-30 [patent_title] => Cleaning device with water pumping device within main water tank [patent_app_type] => utility [patent_app_number] => 17/976503 [patent_app_country] => US [patent_app_date] => 2022-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 0 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17976503 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/976503
Cleaning device with water pumping device within main water tank Oct 27, 2022 Issued
Array ( [id] => 19909892 [patent_doc_number] => 12286083 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-29 [patent_title] => Systems and methods for cleaning a floor of a lavatory within an internal cabin of a vehicle [patent_app_type] => utility [patent_app_number] => 17/974684 [patent_app_country] => US [patent_app_date] => 2022-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 1069 [patent_no_of_claims] => 20 [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] => 17974684 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/974684
Systems and methods for cleaning a floor of a lavatory within an internal cabin of a vehicle Oct 26, 2022 Issued
Array ( [id] => 18807589 [patent_doc_number] => 20230381922 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => GROUNDING TECHNIQUES FOR ESD POLYMERIC FLUID LINES [patent_app_type] => utility [patent_app_number] => 17/974280 [patent_app_country] => US [patent_app_date] => 2022-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5445 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17974280 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/974280
Grounding techniques for ESD polymeric fluid lines Oct 25, 2022 Issued
Array ( [id] => 18349032 [patent_doc_number] => 20230137143 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-04 [patent_title] => WORK MACHINE [patent_app_type] => utility [patent_app_number] => 17/969219 [patent_app_country] => US [patent_app_date] => 2022-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9360 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17969219 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/969219
WORK MACHINE Oct 18, 2022 Pending
Array ( [id] => 20328817 [patent_doc_number] => 12459078 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => In-situ conditioner disk cleaning during CMP [patent_app_type] => utility [patent_app_number] => 17/967762 [patent_app_country] => US [patent_app_date] => 2022-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17967762 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/967762
In-situ conditioner disk cleaning during CMP Oct 16, 2022 Issued
Array ( [id] => 19112409 [patent_doc_number] => 20240124159 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => Leading Edge Cleaning Device [patent_app_type] => utility [patent_app_number] => 18/046048 [patent_app_country] => US [patent_app_date] => 2022-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10486 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18046048 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/046048
Leading edge cleaning device Oct 11, 2022 Issued
Array ( [id] => 20200793 [patent_doc_number] => 12403560 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-02 [patent_title] => Determining substrate precession with acoustic signals [patent_app_type] => utility [patent_app_number] => 17/963143 [patent_app_country] => US [patent_app_date] => 2022-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 14 [patent_no_of_words] => 1078 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17963143 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/963143
Determining substrate precession with acoustic signals Oct 9, 2022 Issued
Array ( [id] => 20505314 [patent_doc_number] => 12539577 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-03 [patent_title] => System and method for detecting a membrane failure in a chemical mechanical polishing system [patent_app_type] => utility [patent_app_number] => 17/959076 [patent_app_country] => US [patent_app_date] => 2022-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 15 [patent_no_of_words] => 4736 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17959076 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/959076
MEMBRANE FAILURE DETECTION SYSTEM Oct 2, 2022 Issued
Array ( [id] => 19082357 [patent_doc_number] => 20240109158 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-04 [patent_title] => COMPLIANT WORK PIECE PROCESSING TOOL WITH LOCKING MECHANISM [patent_app_type] => utility [patent_app_number] => 17/956113 [patent_app_country] => US [patent_app_date] => 2022-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4211 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17956113 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/956113
COMPLIANT WORK PIECE PROCESSING TOOL WITH LOCKING MECHANISM Sep 28, 2022 Pending
Array ( [id] => 19825659 [patent_doc_number] => 12246417 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-11 [patent_title] => Torque wrench with overload warning mechanism [patent_app_type] => utility [patent_app_number] => 17/955354 [patent_app_country] => US [patent_app_date] => 2022-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 3201 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 251 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17955354 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/955354
Torque wrench with overload warning mechanism Sep 27, 2022 Issued
Array ( [id] => 20327935 [patent_doc_number] => 12458192 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Boarding sweeper with guides passing air through a battery holder [patent_app_type] => utility [patent_app_number] => 17/952566 [patent_app_country] => US [patent_app_date] => 2022-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17952566 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/952566
Boarding sweeper with guides passing air through a battery holder Sep 25, 2022 Issued
Array ( [id] => 18256640 [patent_doc_number] => 20230083679 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-16 [patent_title] => METHOD AND DEVICE FOR PROCESSING A HARD-COATED WORKPIECE SURFACE OF A ROTATIONALLY SYMMETRICAL WORKPIECE [patent_app_type] => utility [patent_app_number] => 17/944126 [patent_app_country] => US [patent_app_date] => 2022-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4077 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 17944126 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/944126
Method and device for processing a hard-coated workpiece surface of a rotationally symmetrical workpiece Sep 12, 2022 Issued
Array ( [id] => 19033165 [patent_doc_number] => 20240082980 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => GRINDING DEVICE [patent_app_type] => utility [patent_app_number] => 17/940229 [patent_app_country] => US [patent_app_date] => 2022-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1973 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17940229 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/940229
GRINDING DEVICE Sep 7, 2022 Abandoned
Menu