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] => 20294259 [patent_doc_number] => 20250319502 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => SYSTEM AND METHOD FOR COATING REMOVAL [patent_app_type] => utility [patent_app_number] => 19/250824 [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] => 2510 [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] => 19250824 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/250824
SYSTEM AND METHOD FOR COATING REMOVAL Jun 25, 2025 Pending
Array ( [id] => 19939386 [patent_doc_number] => 12311502 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-05-27 [patent_title] => Electronic device screen polishing apparatus and method for the same [patent_app_type] => utility [patent_app_number] => 18/956100 [patent_app_country] => US [patent_app_date] => 2024-11-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 0 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18956100 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/956100
Electronic device screen polishing apparatus and method for the same Nov 21, 2024 Issued
Array ( [id] => 19990078 [patent_doc_number] => 20250128300 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-24 [patent_title] => SYSTEM AND METHOD FOR COATING REMOVAL [patent_app_type] => utility [patent_app_number] => 18/895670 [patent_app_country] => US [patent_app_date] => 2024-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2504 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [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] => 18895670 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/895670
System and method for coating removal Sep 24, 2024 Issued
Array ( [id] => 19629170 [patent_doc_number] => 20240407619 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => CLEANING APPARATUS ROTARY SCRUBBING TOOL [patent_app_type] => utility [patent_app_number] => 18/736880 [patent_app_country] => US [patent_app_date] => 2024-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10260 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18736880 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/736880
CLEANING APPARATUS ROTARY SCRUBBING TOOL Jun 6, 2024 Pending
Array ( [id] => 19344213 [patent_doc_number] => 20240253176 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => POLISHING PAD WITH ENDPOINT WINDOW [patent_app_type] => utility [patent_app_number] => 18/404443 [patent_app_country] => US [patent_app_date] => 2024-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6381 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18404443 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/404443
POLISHING PAD WITH ENDPOINT WINDOW Jan 3, 2024 Pending
Array ( [id] => 19946723 [patent_doc_number] => 12318058 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-03 [patent_title] => Vacuum nozzle system [patent_app_type] => utility [patent_app_number] => 18/498089 [patent_app_country] => US [patent_app_date] => 2023-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 15 [patent_no_of_words] => 0 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18498089 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/498089
Vacuum nozzle system Oct 30, 2023 Issued
Array ( [id] => 18922002 [patent_doc_number] => 20240025006 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-25 [patent_title] => TEMPERATURE AND SLURRY FLOW RATE CONTROL IN CMP [patent_app_type] => utility [patent_app_number] => 18/478723 [patent_app_country] => US [patent_app_date] => 2023-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4389 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18478723 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/478723
TEMPERATURE AND SLURRY FLOW RATE CONTROL IN CMP Sep 28, 2023 Pending
Array ( [id] => 18970984 [patent_doc_number] => 20240051076 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => DEVICE FOR PROCESSING THE RUNNING EDGES OF SPORTS EQUIPMENT [patent_app_type] => utility [patent_app_number] => 18/241653 [patent_app_country] => US [patent_app_date] => 2023-09-01 [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] => -14 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18241653 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/241653
DEVICE FOR PROCESSING THE RUNNING EDGES OF SPORTS EQUIPMENT Aug 31, 2023 Pending
Array ( [id] => 19402732 [patent_doc_number] => 20240286243 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => SUBSTRATE POLISHING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/453322 [patent_app_country] => US [patent_app_date] => 2023-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7335 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18453322 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/453322
SUBSTRATE POLISHING APPARATUS Aug 21, 2023 Pending
Array ( [id] => 18985867 [patent_doc_number] => 20240057836 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => AUTONOMOUS FLOOR CLEANER WITH SCRUBBING BELT [patent_app_type] => utility [patent_app_number] => 18/450008 [patent_app_country] => US [patent_app_date] => 2023-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5972 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18450008 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/450008
AUTONOMOUS FLOOR CLEANER WITH SCRUBBING BELT Aug 14, 2023 Pending
Array ( [id] => 18969836 [patent_doc_number] => 20240049928 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => AUTONOMOUS VACUUM SWEEPING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/232749 [patent_app_country] => US [patent_app_date] => 2023-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20243 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18232749 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/232749
AUTONOMOUS VACUUM SWEEPING SYSTEM Aug 9, 2023 Pending
Array ( [id] => 19002588 [patent_doc_number] => 20240066659 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => PROCESSING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/446655 [patent_app_country] => US [patent_app_date] => 2023-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10246 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18446655 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/446655
PROCESSING APPARATUS Aug 8, 2023 Pending
Array ( [id] => 19630270 [patent_doc_number] => 20240408719 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => METHOD AND DISK CARRIER FOR USE IN POLISHING GLASS SUBSTRATE DISKS [patent_app_type] => utility [patent_app_number] => 18/230541 [patent_app_country] => US [patent_app_date] => 2023-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6439 [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] => 18230541 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/230541
METHOD AND DISK CARRIER FOR USE IN POLISHING GLASS SUBSTRATE DISKS Aug 3, 2023 Pending
Array ( [id] => 19171529 [patent_doc_number] => 20240157503 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-16 [patent_title] => POLISHING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/358811 [patent_app_country] => US [patent_app_date] => 2023-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3479 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18358811 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/358811
POLISHING APPARATUS Jul 24, 2023 Pending
Array ( [id] => 19527253 [patent_doc_number] => 20240351155 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => KNIFE SHARPENING DEVICE [patent_app_type] => utility [patent_app_number] => 18/223146 [patent_app_country] => US [patent_app_date] => 2023-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4236 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 18223146 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/223146
Knife sharpening device Jul 17, 2023 Issued
Array ( [id] => 18903808 [patent_doc_number] => 20240019293 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => SYSTEM AND METHOD FOR MEASURING WEIGHTS OF VEHICLES AND TRAILERS [patent_app_type] => utility [patent_app_number] => 18/349079 [patent_app_country] => US [patent_app_date] => 2023-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5343 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [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] => 18349079 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/349079
System and method for measuring weights of vehicles and trailers Jul 6, 2023 Issued
Array ( [id] => 18901889 [patent_doc_number] => 20240017374 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => SANDING TOOL WITH INTERMEDIATE ADAPTER PAD [patent_app_type] => utility [patent_app_number] => 18/219415 [patent_app_country] => US [patent_app_date] => 2023-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2434 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18219415 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/219415
SANDING TOOL WITH INTERMEDIATE ADAPTER PAD Jul 6, 2023 Pending
Array ( [id] => 18724901 [patent_doc_number] => 20230339064 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-26 [patent_title] => INTERGRATED MACHINING DEVICE FOR GRINDING AND POLISHING DIAMOND AND METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/217001 [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] => 3879 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18217001 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/217001
INTERGRATED MACHINING DEVICE FOR GRINDING AND POLISHING DIAMOND AND METHOD THEREOF Jun 29, 2023 Pending
Array ( [id] => 18860869 [patent_doc_number] => 20230415304 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-28 [patent_title] => SUBSTRATE POLISHING APPARATUS AND METHOD OF POLISHING SUBSTRATE USING THE SAME [patent_app_type] => utility [patent_app_number] => 18/210107 [patent_app_country] => US [patent_app_date] => 2023-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4255 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18210107 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/210107
SUBSTRATE POLISHING APPARATUS AND METHOD OF POLISHING SUBSTRATE USING THE SAME Jun 14, 2023 Pending
Array ( [id] => 19646458 [patent_doc_number] => 20240420978 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => RETAINING RING FOR CHEMICAL-MECHANICAL POLISHING [patent_app_type] => utility [patent_app_number] => 18/334955 [patent_app_country] => US [patent_app_date] => 2023-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7476 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18334955 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/334955
RETAINING RING FOR CHEMICAL-MECHANICAL POLISHING Jun 13, 2023 Pending
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