Search

Kawing Chan

Examiner (ID: 4051, Phone: (571)270-3909 , Office: P/2837 )

Most Active Art Unit
2837
Art Unit(s)
4147, 2837, 2846
Total Applications
982
Issued Applications
697
Pending Applications
67
Abandoned Applications
237

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17709550 [patent_doc_number] => 20220209558 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-30 [patent_title] => POWER MANAGEMENT METHOD FOR A SOLAR WATCH [patent_app_type] => utility [patent_app_number] => 17/518002 [patent_app_country] => US [patent_app_date] => 2021-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3092 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17518002 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/518002
Power management method for a solar watch Nov 2, 2021 Issued
Array ( [id] => 19090261 [patent_doc_number] => 11951685 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-09 [patent_title] => Servo motor drive circuit and 3D printing apparatus [patent_app_type] => utility [patent_app_number] => 17/516454 [patent_app_country] => US [patent_app_date] => 2021-11-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 8951 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 259 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17516454 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/516454
Servo motor drive circuit and 3D printing apparatus Oct 31, 2021 Issued
Array ( [id] => 20733406 [patent_doc_number] => 12640668 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-26 [patent_title] => Phase advance method in motors with permanent magnets presenting induced voltages with flat region [patent_app_type] => utility [patent_app_number] => 18/033781 [patent_app_country] => US [patent_app_date] => 2021-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 360 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18033781 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/033781
Phase advance method in motors with permanent magnets presenting induced voltages with flat region Oct 25, 2021 Issued
Array ( [id] => 19329328 [patent_doc_number] => 12047022 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-07-23 [patent_title] => Field weakening regulator for CVFR current regulator [patent_app_type] => utility [patent_app_number] => 17/492766 [patent_app_country] => US [patent_app_date] => 2021-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3893 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17492766 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/492766
Field weakening regulator for CVFR current regulator Oct 3, 2021 Issued
Array ( [id] => 17523542 [patent_doc_number] => 20220109391 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-07 [patent_title] => ELECTRIC VEHICLE AND DIAGNOSIS METHOD FOR ELECTRIC VEHICLE [patent_app_type] => utility [patent_app_number] => 17/493244 [patent_app_country] => US [patent_app_date] => 2021-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5661 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17493244 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/493244
Electric vehicle and diagnosis method for electric vehicle Oct 3, 2021 Issued
Array ( [id] => 19257319 [patent_doc_number] => 12017350 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-25 [patent_title] => Robot [patent_app_type] => utility [patent_app_number] => 17/491358 [patent_app_country] => US [patent_app_date] => 2021-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 9013 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17491358 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/491358
Robot Sep 29, 2021 Issued
Array ( [id] => 18813501 [patent_doc_number] => 20230387838 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => METHOD OF CONTROLLING A BRUSHLESS PERMANENT-MAGNET MOTOR [patent_app_type] => utility [patent_app_number] => 18/029635 [patent_app_country] => US [patent_app_date] => 2021-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8646 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18029635 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/029635
METHOD OF CONTROLLING A BRUSHLESS PERMANENT-MAGNET MOTOR Sep 28, 2021 Pending
Array ( [id] => 17519960 [patent_doc_number] => 20220105808 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-07 [patent_title] => TRANSPORT REFRIGERATION ANTI-LOCK TIRE SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 17/449115 [patent_app_country] => US [patent_app_date] => 2021-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6008 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17449115 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/449115
Transport refrigeration anti-lock tire system and method Sep 27, 2021 Issued
Array ( [id] => 18691863 [patent_doc_number] => 20230322089 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => CONTROL DEVICE FOR VEHICLE [patent_app_type] => utility [patent_app_number] => 18/023854 [patent_app_country] => US [patent_app_date] => 2021-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5153 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18023854 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/023854
Control device for vehicle Sep 23, 2021 Issued
Array ( [id] => 18984151 [patent_doc_number] => 11909346 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-20 [patent_title] => Electric motor system [patent_app_type] => utility [patent_app_number] => 17/484829 [patent_app_country] => US [patent_app_date] => 2021-09-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 12348 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17484829 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/484829
Electric motor system Sep 23, 2021 Issued
Array ( [id] => 19428789 [patent_doc_number] => 12088229 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-10 [patent_title] => Systems and methods for controlling motor impedance [patent_app_type] => utility [patent_app_number] => 17/479319 [patent_app_country] => US [patent_app_date] => 2021-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 17 [patent_no_of_words] => 9645 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17479319 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/479319
Systems and methods for controlling motor impedance Sep 19, 2021 Issued
Array ( [id] => 19939659 [patent_doc_number] => 12311776 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-27 [patent_title] => Electric power system and method [patent_app_type] => utility [patent_app_number] => 17/476180 [patent_app_country] => US [patent_app_date] => 2021-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 11 [patent_no_of_words] => 5003 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17476180 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/476180
Electric power system and method Sep 14, 2021 Issued
Array ( [id] => 18358280 [patent_doc_number] => 11646691 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-09 [patent_title] => Power tool [patent_app_type] => utility [patent_app_number] => 17/462069 [patent_app_country] => US [patent_app_date] => 2021-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7159 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 317 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17462069 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/462069
Power tool Aug 30, 2021 Issued
Array ( [id] => 18922694 [patent_doc_number] => 20240025698 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-25 [patent_title] => ELEVATOR SYSTEM HAVING ELEVATOR OPERATING DEVICES FOR PASSENGERS WITH LIMITED MOBILITY [patent_app_type] => utility [patent_app_number] => 18/042301 [patent_app_country] => US [patent_app_date] => 2021-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5713 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18042301 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/042301
ELEVATOR SYSTEM HAVING ELEVATOR OPERATING DEVICES FOR PASSENGERS WITH LIMITED MOBILITY Aug 24, 2021 Pending
Array ( [id] => 17509941 [patent_doc_number] => 20220103045 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-31 [patent_title] => VOICE COIL MOTOR [patent_app_type] => utility [patent_app_number] => 17/396847 [patent_app_country] => US [patent_app_date] => 2021-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5905 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 17396847 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/396847
Voice coil motor Aug 8, 2021 Issued
Array ( [id] => 17760861 [patent_doc_number] => 20220234473 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-28 [patent_title] => Powertrains and Thermal Management of The Same [patent_app_type] => utility [patent_app_number] => 17/394377 [patent_app_country] => US [patent_app_date] => 2021-08-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4342 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17394377 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/394377
Powertrains and Thermal Management of The Same Aug 3, 2021 Abandoned
Array ( [id] => 17243961 [patent_doc_number] => 20210363704 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-25 [patent_title] => HOPPER SPREADER WITH BACK EMF CONTROL AND HOPPER SYSTEM SPEED CONTROL [patent_app_type] => utility [patent_app_number] => 17/393024 [patent_app_country] => US [patent_app_date] => 2021-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9202 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17393024 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/393024
HOPPER SPREADER WITH BACK EMF CONTROL AND HOPPER SYSTEM SPEED CONTROL Aug 2, 2021 Abandoned
Array ( [id] => 18680849 [patent_doc_number] => 20230318512 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => MOTOR DEVICE, GEAR MOTOR, DETECTION METHOD, AND COMPUTER READABLE MEDIUM [patent_app_type] => utility [patent_app_number] => 18/020842 [patent_app_country] => US [patent_app_date] => 2021-08-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8744 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18020842 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/020842
MOTOR DEVICE, GEAR MOTOR, DETECTION METHOD, AND COMPUTER READABLE MEDIUM Aug 1, 2021 Abandoned
Array ( [id] => 18428270 [patent_doc_number] => 11673478 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-06-13 [patent_title] => Drive unit for electric vehicle [patent_app_type] => utility [patent_app_number] => 17/388988 [patent_app_country] => US [patent_app_date] => 2021-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 26 [patent_no_of_words] => 15767 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17388988 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/388988
Drive unit for electric vehicle Jul 28, 2021 Issued
Array ( [id] => 19373552 [patent_doc_number] => 12065100 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-20 [patent_title] => Motor/controller authentication system [patent_app_type] => utility [patent_app_number] => 17/383547 [patent_app_country] => US [patent_app_date] => 2021-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 7549 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17383547 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/383547
Motor/controller authentication system Jul 22, 2021 Issued
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