Search

Henry Y. Liu

Examiner (ID: 1786, Phone: (571)270-7018 , Office: P/3654 )

Most Active Art Unit
3654
Art Unit(s)
4155, 3657, 3654
Total Applications
1941
Issued Applications
1509
Pending Applications
92
Abandoned Applications
375

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20935391 [patent_doc_number] => 20260242148 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-08-20 [patent_title] => MULTI-PIECE SPROCKET [patent_app_type] => utility [patent_app_number] => 19/161520 [patent_app_country] => US [patent_app_date] => 2024-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19161520 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/161520
MULTI-PIECE SPROCKET Sep 1, 2025 Pending
Array ( [id] => 20904118 [patent_doc_number] => 20260235198 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-08-13 [patent_title] => IMPROVED FILTERING PULLEY [patent_app_type] => utility [patent_app_number] => 19/154133 [patent_app_country] => US [patent_app_date] => 2024-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 19154133 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/154133
IMPROVED FILTERING PULLEY Aug 5, 2025 Pending
Array ( [id] => 20519352 [patent_doc_number] => 20260043456 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-12 [patent_title] => SILENT CHAIN AND TRANSMISSION MECHANISM HAVING THE SAME [patent_app_type] => utility [patent_app_number] => 19/286538 [patent_app_country] => US [patent_app_date] => 2025-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1188 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 217 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19286538 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/286538
SILENT CHAIN AND TRANSMISSION MECHANISM HAVING THE SAME Jul 30, 2025 Pending
Array ( [id] => 20427213 [patent_doc_number] => 20250389301 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-25 [patent_title] => CLUTCH GUARD [patent_app_type] => utility [patent_app_number] => 19/245031 [patent_app_country] => US [patent_app_date] => 2025-06-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1083 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 22 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19245031 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/245031
CLUTCH GUARD Jun 19, 2025 Pending
Array ( [id] => 20219515 [patent_doc_number] => 20250282446 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-11 [patent_title] => SHIFTING BICYCLE CHAIN HAVING UNIFORM OFFSET CHAIN LINKS, AND CHAIN WHEEL ASSEMBLY COOPERATING THEREWITH [patent_app_type] => utility [patent_app_number] => 19/218599 [patent_app_country] => US [patent_app_date] => 2025-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 37469 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 438 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19218599 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/218599
SHIFTING BICYCLE CHAIN HAVING UNIFORM OFFSET CHAIN LINKS, AND CHAIN WHEEL ASSEMBLY COOPERATING THEREWITH May 25, 2025 Pending
Array ( [id] => 20379434 [patent_doc_number] => 20250361927 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-27 [patent_title] => DRIVE CLUTCH [patent_app_type] => utility [patent_app_number] => 19/215860 [patent_app_country] => US [patent_app_date] => 2025-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 19215860 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/215860
DRIVE CLUTCH May 21, 2025 Pending
Array ( [id] => 20193221 [patent_doc_number] => 20250269931 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-28 [patent_title] => ELECTROMECHANICAL REAR DERAILLEUR FOR COAXIAL MOUNTING [patent_app_type] => utility [patent_app_number] => 19/208191 [patent_app_country] => US [patent_app_date] => 2025-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6950 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 19208191 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/208191
ELECTROMECHANICAL REAR DERAILLEUR FOR COAXIAL MOUNTING May 13, 2025 Pending
Array ( [id] => 20349472 [patent_doc_number] => 20250346324 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => BICYCLE GEAR CHANGING APPARATUS [patent_app_type] => utility [patent_app_number] => 19/201184 [patent_app_country] => US [patent_app_date] => 2025-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5838 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19201184 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/201184
BICYCLE GEAR CHANGING APPARATUS May 6, 2025 Pending
Array ( [id] => 20975443 [patent_doc_number] => 12736128 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-09-15 [patent_title] => Lubricant supply system [patent_app_type] => utility [patent_app_number] => 19/196273 [patent_app_country] => US [patent_app_date] => 2025-05-01 [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] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19196273 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/196273
LUBRICANT SUPPLY SYSTEM Apr 30, 2025 Pending
Array ( [id] => 20407918 [patent_doc_number] => 20250377027 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-11 [patent_title] => SUSPENSION ENHANCING HUB AND REAR DERAILLEUR ASSEMBLY [patent_app_type] => utility [patent_app_number] => 19/196623 [patent_app_country] => US [patent_app_date] => 2025-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3497 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19196623 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/196623
SUSPENSION ENHANCING HUB AND REAR DERAILLEUR ASSEMBLY Apr 30, 2025 Pending
Array ( [id] => 20427126 [patent_doc_number] => 20250389214 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-25 [patent_title] => OIL CONDITION ESTIMATION DEVICE AND OIL CONDITION ESTIMATION METHOD [patent_app_type] => utility [patent_app_number] => 19/196282 [patent_app_country] => US [patent_app_date] => 2025-05-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 19196282 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/196282
OIL CONDITION ESTIMATION DEVICE AND OIL CONDITION ESTIMATION METHOD Apr 30, 2025 Pending
Array ( [id] => 20321045 [patent_doc_number] => 20250333133 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-30 [patent_title] => Displaceable Bash Guard With Spring [patent_app_type] => utility [patent_app_number] => 19/188753 [patent_app_country] => US [patent_app_date] => 2025-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8477 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19188753 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/188753
Displaceable Bash Guard With Spring Apr 23, 2025 Pending
Array ( [id] => 20762211 [patent_doc_number] => 20260159190 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-06-11 [patent_title] => FRONT CHAINRING ASSEMBLY [patent_app_type] => utility [patent_app_number] => 19/179550 [patent_app_country] => US [patent_app_date] => 2025-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6783 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19179550 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/179550
Front chainring assembly Apr 14, 2025 Issued
Array ( [id] => 20322038 [patent_doc_number] => 20250334126 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-30 [patent_title] => CONTROL METHOD AND CONTROL DEVICE FOR COMPRESSOR UNIT [patent_app_type] => utility [patent_app_number] => 19/176621 [patent_app_country] => US [patent_app_date] => 2025-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2435 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19176621 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/176621
CONTROL METHOD AND CONTROL DEVICE FOR COMPRESSOR UNIT Apr 10, 2025 Pending
Array ( [id] => 20289045 [patent_doc_number] => 20250314288 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-09 [patent_title] => DRIVE PULLEY ADAPTER FOR A BELT DRIVEN COMPONENT [patent_app_type] => utility [patent_app_number] => 19/174432 [patent_app_country] => US [patent_app_date] => 2025-04-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3603 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19174432 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/174432
DRIVE PULLEY ADAPTER FOR A BELT DRIVEN COMPONENT Apr 8, 2025 Pending
Array ( [id] => 20827050 [patent_doc_number] => 12680609 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-14 [patent_title] => Output assembly for driving a drive pulley of a continuously variable transmission and for supplying hydraulic fluid to the drive pulley for actuating the drive pulley [patent_app_type] => utility [patent_app_number] => 19/173382 [patent_app_country] => US [patent_app_date] => 2025-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 2369 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 485 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19173382 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/173382
Output assembly for driving a drive pulley of a continuously variable transmission and for supplying hydraulic fluid to the drive pulley for actuating the drive pulley Apr 7, 2025 Issued
Array ( [id] => 20974467 [patent_doc_number] => 12735144 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-09-15 [patent_title] => Bicycle motor unit and bicycle derailleur [patent_app_type] => utility [patent_app_number] => 19/075791 [patent_app_country] => US [patent_app_date] => 2025-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 30 [patent_no_of_words] => 22343 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19075791 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/075791
BICYCLE MOTOR UNIT AND BICYCLE DERAILLEUR Mar 10, 2025 Pending
Array ( [id] => 21011211 [patent_doc_number] => 12747690 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-09-29 [patent_title] => Belt drive system for centrifugal pump priming accessories [patent_app_type] => utility [patent_app_number] => 19/058117 [patent_app_country] => US [patent_app_date] => 2025-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 0 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19058117 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/058117
BELT DRIVE SYSTEM FOR CENTRIFUGAL PUMP PRIMING ACCESSORIES Feb 19, 2025 Pending
Array ( [id] => 20744502 [patent_doc_number] => 12644401 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-02 [patent_title] => Sump and heat exchanger module [patent_app_type] => utility [patent_app_number] => 19/038245 [patent_app_country] => US [patent_app_date] => 2025-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5830 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19038245 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/038245
Sump and heat exchanger module Jan 26, 2025 Issued
Array ( [id] => 20032886 [patent_doc_number] => 20250171108 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-29 [patent_title] => DERAILLEUR FOR HUMAN-POWERED VEHICLE [patent_app_type] => utility [patent_app_number] => 19/035991 [patent_app_country] => US [patent_app_date] => 2025-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24348 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 19035991 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/035991
DERAILLEUR FOR HUMAN-POWERED VEHICLE Jan 23, 2025 Pending
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