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] => 18565103 [patent_doc_number] => 20230255430 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => ROBOT CLEANER AND ROBOT CLEANING SYSTEM HAVING THE SAME, AND CONTROL METHOD OF ROBOT CLEANING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/014239 [patent_app_country] => US [patent_app_date] => 2021-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16989 [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] => 18014239 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/014239
ROBOT CLEANER AND ROBOT CLEANING SYSTEM HAVING THE SAME, AND CONTROL METHOD OF ROBOT CLEANING SYSTEM Jun 17, 2021 Pending
Array ( [id] => 18565105 [patent_doc_number] => 20230255432 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => ROBOT CLEANER, CONTROL SYSTEM OF ROBOT CLEANER AND CONTROL METHOD OF ROBOT CLEANER [patent_app_type] => utility [patent_app_number] => 18/014259 [patent_app_country] => US [patent_app_date] => 2021-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17581 [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] => 18014259 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/014259
ROBOT CLEANER, CONTROL SYSTEM OF ROBOT CLEANER AND CONTROL METHOD OF ROBOT CLEANER Jun 9, 2021 Pending
Array ( [id] => 19947538 [patent_doc_number] => 12318879 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-03 [patent_title] => Pressurizing suction-attachment table and pressurizing device equipped with the same [patent_app_type] => utility [patent_app_number] => 17/927615 [patent_app_country] => US [patent_app_date] => 2021-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17927615 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/927615
Pressurizing suction-attachment table and pressurizing device equipped with the same Jun 6, 2021 Issued
Array ( [id] => 18706923 [patent_doc_number] => 20230329496 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => SELF-MOVING ROBOT SYSTEM [patent_app_type] => utility [patent_app_number] => 18/008144 [patent_app_country] => US [patent_app_date] => 2021-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9518 [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] => 18008144 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/008144
SELF-MOVING ROBOT SYSTEM Jun 6, 2021 Abandoned
Array ( [id] => 18433693 [patent_doc_number] => 20230180987 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => CLEANING APPLIANCE [patent_app_type] => utility [patent_app_number] => 17/926138 [patent_app_country] => US [patent_app_date] => 2021-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2570 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17926138 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/926138
CLEANING APPLIANCE May 9, 2021 Abandoned
Array ( [id] => 18350928 [patent_doc_number] => 20230139039 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-04 [patent_title] => Tool for adjusting feet for furniture items and the like [patent_app_type] => utility [patent_app_number] => 17/995704 [patent_app_country] => US [patent_app_date] => 2021-04-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2238 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 17995704 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/995704
Tool for adjusting feet for furniture items and the like Apr 29, 2021 Pending
Array ( [id] => 18336934 [patent_doc_number] => 20230128883 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-27 [patent_title] => Improved tool for adjusting shaped profile feet for furniture items [patent_app_type] => utility [patent_app_number] => 17/995052 [patent_app_country] => US [patent_app_date] => 2021-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2338 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 17995052 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/995052
Tool for adjusting shaped profile feet for furniture items Apr 28, 2021 Issued
Array ( [id] => 18425912 [patent_doc_number] => 20230180377 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-08 [patent_title] => CLEANING TOOL [patent_app_type] => utility [patent_app_number] => 17/922070 [patent_app_country] => US [patent_app_date] => 2021-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7340 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17922070 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/922070
CLEANING TOOL Apr 12, 2021 Pending
Array ( [id] => 19700593 [patent_doc_number] => 12194596 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-14 [patent_title] => Tool with single sensor to detect attachment of side grip and cover [patent_app_type] => utility [patent_app_number] => 17/914949 [patent_app_country] => US [patent_app_date] => 2021-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 10162 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17914949 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/914949
Tool with single sensor to detect attachment of side grip and cover Apr 7, 2021 Issued
Array ( [id] => 18375725 [patent_doc_number] => 20230150806 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-18 [patent_title] => DEVICE FOR HOISTING LOADS [patent_app_type] => utility [patent_app_number] => 17/913962 [patent_app_country] => US [patent_app_date] => 2021-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1419 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 52 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17913962 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/913962
Device for hoisting loads Mar 23, 2021 Issued
Array ( [id] => 18159952 [patent_doc_number] => 20230026544 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-26 [patent_title] => Floor Sanding Device, Floor Treatment Plate and Method for Sanding a Floor [patent_app_type] => utility [patent_app_number] => 17/909544 [patent_app_country] => US [patent_app_date] => 2021-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4522 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17909544 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/909544
Floor Sanding Device, Floor Treatment Plate and Method for Sanding a Floor Mar 4, 2021 Abandoned
Array ( [id] => 18091993 [patent_doc_number] => 20220410334 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => METHOD AND ASSEMBLY FOR POLISHING OPTICAL CABLES [patent_app_type] => utility [patent_app_number] => 17/801500 [patent_app_country] => US [patent_app_date] => 2021-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6146 [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] => 17801500 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/801500
METHOD AND ASSEMBLY FOR POLISHING OPTICAL CABLES Mar 2, 2021 Pending
Array ( [id] => 18281516 [patent_doc_number] => 20230096988 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => Bench Grinder Apparatus [patent_app_type] => utility [patent_app_number] => 17/908336 [patent_app_country] => US [patent_app_date] => 2021-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6947 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17908336 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/908336
Bench Grinder Apparatus Mar 1, 2021 Abandoned
Array ( [id] => 17056344 [patent_doc_number] => 20210265778 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-08-26 [patent_title] => Angled Plug Connection, Electrical Connector For Such An Angled Plug Connection and Electrically Heated Windshield Wiper With Such An Angled Plug Connection [patent_app_type] => utility [patent_app_number] => 17/183983 [patent_app_country] => US [patent_app_date] => 2021-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3965 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17183983 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/183983
Angled Plug Connection, Electrical Connector For Such An Angled Plug Connection and Electrically Heated Windshield Wiper With Such An Angled Plug Connection Feb 23, 2021 Issued
Array ( [id] => 18258056 [patent_doc_number] => 20230085096 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-16 [patent_title] => LOOSE ABRASIVE BODIES AND METHOD OF ABRADING A WORKPIECE USING THE SAME [patent_app_type] => utility [patent_app_number] => 17/793608 [patent_app_country] => US [patent_app_date] => 2021-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4937 [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] => 17793608 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/793608
LOOSE ABRASIVE BODIES AND METHOD OF ABRADING A WORKPIECE USING THE SAME Jan 31, 2021 Abandoned
Array ( [id] => 20437038 [patent_doc_number] => 12507855 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Cleaner nozzle with brush and removal member [patent_app_type] => utility [patent_app_number] => 18/017199 [patent_app_country] => US [patent_app_date] => 2021-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 10238 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18017199 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/017199
Cleaner nozzle with brush and removal member Jan 7, 2021 Issued
Array ( [id] => 18361777 [patent_doc_number] => 20230143368 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => MACHINING METHOD AND MACHINING DEVICE IMPROVING MACHINING EFFICIENCY AND PRESERVING WORKPIECE SURFACE INTEGRITY [patent_app_type] => utility [patent_app_number] => 17/802283 [patent_app_country] => US [patent_app_date] => 2020-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4349 [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] => 17802283 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/802283
MACHINING METHOD AND MACHINING DEVICE IMPROVING MACHINING EFFICIENCY AND PRESERVING WORKPIECE SURFACE INTEGRITY Nov 26, 2020 Pending
Array ( [id] => 18365316 [patent_doc_number] => 20230146907 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => ROBOT CLEANER [patent_app_type] => utility [patent_app_number] => 17/914543 [patent_app_country] => US [patent_app_date] => 2020-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13105 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17914543 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/914543
Robot cleaner with ascending/descending guides Nov 2, 2020 Issued
Array ( [id] => 18954236 [patent_doc_number] => 20240042563 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => Loading System for an Optical Machine, in Particular for Loading and Unloading Optical Workpieces, such as Eyeglass Lenses, and Deblocking Apparatus Comprising a Loading System of this Type [patent_app_type] => utility [patent_app_number] => 17/761117 [patent_app_country] => US [patent_app_date] => 2020-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12651 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17761117 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/761117
Loading system for an optical machine, in particular for loading and unloading optical workpieces, such as eyeglass lenses, and deblocking apparatus comprising a loading system of this type Sep 6, 2020 Issued
Array ( [id] => 20185513 [patent_doc_number] => 12396612 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-26 [patent_title] => Robot vacuum [patent_app_type] => utility [patent_app_number] => 18/014799 [patent_app_country] => US [patent_app_date] => 2020-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 10927 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18014799 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/014799
Robot vacuum Aug 30, 2020 Issued
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