Search

Hai Phan

Supervisory Patent Examiner (ID: 18880, Phone: (571)272-6338 , Office: P/2685 )

Most Active Art Unit
2614
Art Unit(s)
2614, 2654, 2734, 2685
Total Applications
530
Issued Applications
277
Pending Applications
94
Abandoned Applications
161

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18693502 [patent_doc_number] => 20230323901 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => HYDRAULIC DRIVE SYSTEM [patent_app_type] => utility [patent_app_number] => 18/044332 [patent_app_country] => US [patent_app_date] => 2021-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11972 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18044332 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/044332
Hydraulic drive system Sep 8, 2021 Issued
Array ( [id] => 18613097 [patent_doc_number] => 20230279833 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => VALVE PLATE, CYLINDER BLOCK, AND HYDRAULIC MOTOR [patent_app_type] => utility [patent_app_number] => 18/018053 [patent_app_country] => US [patent_app_date] => 2021-09-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10124 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18018053 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/018053
Valve plate, cylinder block, and hydraulic motor Sep 6, 2021 Issued
Array ( [id] => 18718608 [patent_doc_number] => 11795944 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-10-24 [patent_title] => Hydraulic pump to synchronize the operation of a pair of hydraulic actuators [patent_app_type] => utility [patent_app_number] => 17/300544 [patent_app_country] => US [patent_app_date] => 2021-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 19 [patent_no_of_words] => 7470 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17300544 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/300544
Hydraulic pump to synchronize the operation of a pair of hydraulic actuators Aug 9, 2021 Issued
Array ( [id] => 17414561 [patent_doc_number] => 20220049465 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-17 [patent_title] => WORKING MACHINE [patent_app_type] => utility [patent_app_number] => 17/397154 [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] => 34554 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17397154 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/397154
Working machine Aug 8, 2021 Issued
Array ( [id] => 17414560 [patent_doc_number] => 20220049464 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-17 [patent_title] => WORKING MACHINE [patent_app_type] => utility [patent_app_number] => 17/395894 [patent_app_country] => US [patent_app_date] => 2021-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 21695 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17395894 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/395894
Working machine Aug 5, 2021 Issued
Array ( [id] => 17414825 [patent_doc_number] => 20220049729 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-17 [patent_title] => WORKING MACHINE [patent_app_type] => utility [patent_app_number] => 17/396143 [patent_app_country] => US [patent_app_date] => 2021-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17116 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 17396143 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/396143
Working machine Aug 5, 2021 Issued
Array ( [id] => 18764426 [patent_doc_number] => 11814815 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-11-14 [patent_title] => Working machine [patent_app_type] => utility [patent_app_number] => 17/394645 [patent_app_country] => US [patent_app_date] => 2021-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 33835 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17394645 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/394645
Working machine Aug 4, 2021 Issued
Array ( [id] => 18910651 [patent_doc_number] => 11873624 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-16 [patent_title] => Working machine [patent_app_type] => utility [patent_app_number] => 17/388668 [patent_app_country] => US [patent_app_date] => 2021-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 19487 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 254 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17388668 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/388668
Working machine Jul 28, 2021 Issued
Array ( [id] => 18675863 [patent_doc_number] => 20230313487 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => HYDRAULIC EXCAVATOR DRIVE SYSTEM [patent_app_type] => utility [patent_app_number] => 18/022664 [patent_app_country] => US [patent_app_date] => 2021-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7821 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 169 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18022664 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/022664
Hydraulic excavator drive system Jul 28, 2021 Issued
Array ( [id] => 17714117 [patent_doc_number] => 11378102 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-07-05 [patent_title] => Flow management of a hydraulic system [patent_app_type] => utility [patent_app_number] => 17/443836 [patent_app_country] => US [patent_app_date] => 2021-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 10919 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 176 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17443836 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/443836
Flow management of a hydraulic system Jul 27, 2021 Issued
Array ( [id] => 17713838 [patent_doc_number] => 11377823 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-07-05 [patent_title] => Flow management of a hydraulic system [patent_app_type] => utility [patent_app_number] => 17/443834 [patent_app_country] => US [patent_app_date] => 2021-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 10852 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 301 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17443834 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/443834
Flow management of a hydraulic system Jul 27, 2021 Issued
Array ( [id] => 20343714 [patent_doc_number] => 12467438 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => Hub feed oil system [patent_app_type] => utility [patent_app_number] => 18/017271 [patent_app_country] => US [patent_app_date] => 2021-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 16 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18017271 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/017271
Hub feed oil system Jul 20, 2021 Issued
Array ( [id] => 17185924 [patent_doc_number] => 20210332809 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-10-28 [patent_title] => TILT LINKAGE FOR VARIABLE STROKE PUMP [patent_app_type] => utility [patent_app_number] => 17/305370 [patent_app_country] => US [patent_app_date] => 2021-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7411 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17305370 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/305370
Tilt linkage for variable stroke pump Jul 5, 2021 Issued
Array ( [id] => 18583604 [patent_doc_number] => 20230265865 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-24 [patent_title] => HYDRAULIC DRIVE SYSTEM [patent_app_type] => utility [patent_app_number] => 18/005111 [patent_app_country] => US [patent_app_date] => 2021-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11470 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 18005111 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/005111
Hydraulic drive system Jun 28, 2021 Issued
Array ( [id] => 19404498 [patent_doc_number] => 20240288009 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => WORKING CYLINDER AND METHOD FOR THE PRODUCTION THEREOF [patent_app_type] => utility [patent_app_number] => 18/573099 [patent_app_country] => US [patent_app_date] => 2021-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5825 [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] => 18573099 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/573099
Working cylinder and method for the production thereof Jun 27, 2021 Issued
Array ( [id] => 17436567 [patent_doc_number] => 11261886 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-03-01 [patent_title] => Pneumatic cylinder and mechanical apparatus using the same [patent_app_type] => utility [patent_app_number] => 17/347548 [patent_app_country] => US [patent_app_date] => 2021-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3329 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 215 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17347548 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/347548
Pneumatic cylinder and mechanical apparatus using the same Jun 13, 2021 Issued
Array ( [id] => 17635365 [patent_doc_number] => 11346083 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-05-31 [patent_title] => Fluid flushing system for a hydraulic circuit of a work machine [patent_app_type] => utility [patent_app_number] => 17/303973 [patent_app_country] => US [patent_app_date] => 2021-06-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 8444 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17303973 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/303973
Fluid flushing system for a hydraulic circuit of a work machine Jun 10, 2021 Issued
Array ( [id] => 17315439 [patent_doc_number] => 20210404487 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-30 [patent_title] => COMBINED VALVE, POWER UNIT BODY AND HYDRAULIC POWER UNIT [patent_app_type] => utility [patent_app_number] => 17/303899 [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] => 4089 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 17303899 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/303899
Combined valve, power unit body and hydraulic power unit Jun 9, 2021 Issued
Array ( [id] => 18726688 [patent_doc_number] => 20230340969 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-26 [patent_title] => HYDRAULIC SYSTEM AND METHOD FOR OPERATING A HYDRAULIC SYSTEM [patent_app_type] => utility [patent_app_number] => 18/017446 [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] => 4210 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18017446 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/017446
Hydraulic system and method for operating a hydraulic system Jun 9, 2021 Issued
Array ( [id] => 18485693 [patent_doc_number] => 20230213031 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-06 [patent_title] => HYDRAULIC CONTROL SYSTEM FOR LINEAR ACTUATION [patent_app_type] => utility [patent_app_number] => 18/000782 [patent_app_country] => US [patent_app_date] => 2021-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1613 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18000782 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/000782
Hydraulic control system for linear actuation Jun 8, 2021 Issued
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