Search

Randolph I. Chu

Examiner (ID: 19137)

Most Active Art Unit
2666
Art Unit(s)
2666, 2624, 2667, 2668, 2663
Total Applications
984
Issued Applications
751
Pending Applications
70
Abandoned Applications
177

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20599313 [patent_doc_number] => 20260077318 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-19 [patent_title] => SYSTEMS AND METHODS FOR IMPROVED FLUID GUN DELIVERY SYSTEMS [patent_app_type] => utility [patent_app_number] => 19/402401 [patent_app_country] => US [patent_app_date] => 2025-11-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1262 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19402401 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/402401
SYSTEMS AND METHODS FOR IMPROVED FLUID GUN DELIVERY SYSTEMS Nov 25, 2025 Pending
Array ( [id] => 19990053 [patent_doc_number] => 20250128275 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-24 [patent_title] => HANDHELD WATER SPRAYER [patent_app_type] => utility [patent_app_number] => 18/983419 [patent_app_country] => US [patent_app_date] => 2024-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3578 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18983419 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/983419
Handheld water sprayer Dec 16, 2024 Issued
Array ( [id] => 19815307 [patent_doc_number] => 20250073514 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => House Fire Fighting Technique [patent_app_type] => utility [patent_app_number] => 18/915169 [patent_app_country] => US [patent_app_date] => 2024-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3361 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 33 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18915169 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/915169
House Fire Fighting Technique Oct 13, 2024 Pending
Array ( [id] => 19832836 [patent_doc_number] => 20250084622 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => WRAPPER FOR DRINKING COOLER [patent_app_type] => utility [patent_app_number] => 18/826799 [patent_app_country] => US [patent_app_date] => 2024-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3526 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18826799 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/826799
WRAPPER FOR DRINKING COOLER Sep 5, 2024 Pending
Array ( [id] => 20419491 [patent_doc_number] => 20250381576 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-18 [patent_title] => SHOWERHEAD WITH QUICK RELEASE FILTER [patent_app_type] => utility [patent_app_number] => 18/743716 [patent_app_country] => US [patent_app_date] => 2024-06-14 [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] => -9 [patent_words_short_claim] => 335 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18743716 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/743716
SHOWERHEAD WITH QUICK RELEASE FILTER Jun 13, 2024 Pending
Array ( [id] => 19727368 [patent_doc_number] => 20250030119 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => BATTERY PLACEMENT RACK AND FIRE EXTINGUISHING DEVICE [patent_app_type] => utility [patent_app_number] => 18/732946 [patent_app_country] => US [patent_app_date] => 2024-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2481 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18732946 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/732946
BATTERY PLACEMENT RACK AND FIRE EXTINGUISHING DEVICE Jun 3, 2024 Pending
Array ( [id] => 20392927 [patent_doc_number] => 20250368402 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-04 [patent_title] => AIRLESS PAINT SPRAYER LID AND PAINT BUCKET [patent_app_type] => utility [patent_app_number] => 18/732359 [patent_app_country] => US [patent_app_date] => 2024-06-03 [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] => -24 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18732359 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/732359
AIRLESS PAINT SPRAYER LID AND PAINT BUCKET Jun 2, 2024 Pending
Array ( [id] => 19613710 [patent_doc_number] => 20240399390 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => HOUSING OF AN INDUCTION HARDENING TOOL [patent_app_type] => utility [patent_app_number] => 18/676699 [patent_app_country] => US [patent_app_date] => 2024-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4890 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18676699 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/676699
HOUSING OF AN INDUCTION HARDENING TOOL May 28, 2024 Pending
Array ( [id] => 19585229 [patent_doc_number] => 20240382786 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-21 [patent_title] => PUMP GUARD WITH AIR DEFLECTOR AND FIRE PROTECTION, AND METHODS OF USE [patent_app_type] => utility [patent_app_number] => 18/666111 [patent_app_country] => US [patent_app_date] => 2024-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8515 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 224 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18666111 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/666111
PUMP GUARD WITH AIR DEFLECTOR AND FIRE PROTECTION, AND METHODS OF USE May 15, 2024 Pending
Array ( [id] => 19417567 [patent_doc_number] => 20240293690 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-05 [patent_title] => Fire Containment Connector [patent_app_type] => utility [patent_app_number] => 18/637141 [patent_app_country] => US [patent_app_date] => 2024-04-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4663 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18637141 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/637141
Fire containment connector Apr 15, 2024 Issued
Array ( [id] => 19331515 [patent_doc_number] => 20240245945 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => FIRE TRUCK WITH FIRE SUPPRESSION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/627710 [patent_app_country] => US [patent_app_date] => 2024-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4723 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 321 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18627710 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/627710
FIRE TRUCK WITH FIRE SUPPRESSION SYSTEM Apr 4, 2024 Pending
Array ( [id] => 19458157 [patent_doc_number] => 12098640 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-24 [patent_title] => Liquid nitrogen direct injection and foaming intelligent filling system based on mine fire area characteristics and application method [patent_app_type] => utility [patent_app_number] => 18/533005 [patent_app_country] => US [patent_app_date] => 2023-12-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 6232 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 1103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18533005 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/533005
Liquid nitrogen direct injection and foaming intelligent filling system based on mine fire area characteristics and application method Dec 6, 2023 Issued
Array ( [id] => 20025818 [patent_doc_number] => 20250164040 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-22 [patent_title] => CAST-IN-PLACE THROUGH-PENETRATION FIRESTOP DEVICE [patent_app_type] => utility [patent_app_number] => 18/514776 [patent_app_country] => US [patent_app_date] => 2023-11-20 [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] => -6 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18514776 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/514776
CAST-IN-PLACE THROUGH-PENETRATION FIRESTOP DEVICE Nov 19, 2023 Pending
Array ( [id] => 19126186 [patent_doc_number] => 20240131539 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => HAND-HELD SPRAYERS AND NOZZLES FOR SPRAYERS [patent_app_type] => utility [patent_app_number] => 18/493096 [patent_app_country] => US [patent_app_date] => 2023-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2888 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18493096 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/493096
HAND-HELD SPRAYERS AND NOZZLES FOR SPRAYERS Oct 23, 2023 Pending
Array ( [id] => 19126186 [patent_doc_number] => 20240131539 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => HAND-HELD SPRAYERS AND NOZZLES FOR SPRAYERS [patent_app_type] => utility [patent_app_number] => 18/493096 [patent_app_country] => US [patent_app_date] => 2023-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2888 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18493096 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/493096
HAND-HELD SPRAYERS AND NOZZLES FOR SPRAYERS Oct 22, 2023 Pending
Array ( [id] => 19096665 [patent_doc_number] => 20240115892 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => FIRE EXTINGUISHING DEVICE AND SYSTEM FOR SUPPRESSION OF ELECTRIC VEHICLE BATTERY FIRE [patent_app_type] => utility [patent_app_number] => 18/480597 [patent_app_country] => US [patent_app_date] => 2023-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5737 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 236 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18480597 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/480597
FIRE EXTINGUISHING DEVICE AND SYSTEM FOR SUPPRESSION OF ELECTRIC VEHICLE BATTERY FIRE Oct 3, 2023 Pending
Array ( [id] => 19096667 [patent_doc_number] => 20240115894 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => TENSION INDICATING DEVICE AND FIRE SUPPRESSION SYSTEM COMPRISING TENSION INDICATING DEVICE [patent_app_type] => utility [patent_app_number] => 18/479779 [patent_app_country] => US [patent_app_date] => 2023-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3832 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18479779 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/479779
TENSION INDICATING DEVICE AND FIRE SUPPRESSION SYSTEM COMPRISING TENSION INDICATING DEVICE Oct 1, 2023 Pending
Array ( [id] => 19096668 [patent_doc_number] => 20240115895 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => TRIGGER DEVICE AND FIRE SUPPRESSION SYSTEM COMPRISING TRIGGERDEVICE [patent_app_type] => utility [patent_app_number] => 18/479792 [patent_app_country] => US [patent_app_date] => 2023-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4126 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 221 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18479792 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/479792
TRIGGER DEVICE AND FIRE SUPPRESSION SYSTEM COMPRISING TRIGGERDEVICE Oct 1, 2023 Pending
Array ( [id] => 19861202 [patent_doc_number] => 20250099988 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => WATER FLOW SWITCHING DEVICE FOR SPRINKLER APPLICATIONS [patent_app_type] => utility [patent_app_number] => 18/475457 [patent_app_country] => US [patent_app_date] => 2023-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2872 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 451 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18475457 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/475457
WATER FLOW SWITCHING DEVICE FOR SPRINKLER APPLICATIONS Sep 26, 2023 Pending
Array ( [id] => 19585425 [patent_doc_number] => 20240382982 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-21 [patent_title] => NOZZLE SYSTEM [patent_app_type] => utility [patent_app_number] => 18/373015 [patent_app_country] => US [patent_app_date] => 2023-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4970 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18373015 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/373015
NOZZLE SYSTEM Sep 25, 2023 Pending
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