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] => 18656569 [patent_doc_number] => 20230302470 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => ELECTROSTATIC SPRAY DRYING NOZZLE ASSEMBLY [patent_app_type] => utility [patent_app_number] => 17/701401 [patent_app_country] => US [patent_app_date] => 2022-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3859 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 284 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17701401 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/701401
Electrostatic spray drying nozzle assembly Mar 21, 2022 Issued
Array ( [id] => 17881663 [patent_doc_number] => 20220297140 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-22 [patent_title] => Multi-Mode Rotor Sprinkler Apparatus And Method [patent_app_type] => utility [patent_app_number] => 17/694948 [patent_app_country] => US [patent_app_date] => 2022-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4018 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17694948 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/694948
Multi-mode rotor sprinkler apparatus and method Mar 14, 2022 Issued
Array ( [id] => 19762450 [patent_doc_number] => 12220721 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-11 [patent_title] => Backpack paint sprayer [patent_app_type] => utility [patent_app_number] => 17/694806 [patent_app_country] => US [patent_app_date] => 2022-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3363 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 252 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17694806 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/694806
Backpack paint sprayer Mar 14, 2022 Issued
Array ( [id] => 17686410 [patent_doc_number] => 20220193702 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-23 [patent_title] => ROTATING SPRINKLER HEAD [patent_app_type] => utility [patent_app_number] => 17/691052 [patent_app_country] => US [patent_app_date] => 2022-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3385 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 239 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17691052 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/691052
ROTATING SPRINKLER HEAD Mar 8, 2022 Abandoned
Array ( [id] => 18626974 [patent_doc_number] => 20230285786 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => PROJECTILE FIRE EXTINGUISHING INVENTION [patent_app_type] => utility [patent_app_number] => 17/690284 [patent_app_country] => US [patent_app_date] => 2022-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2720 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17690284 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/690284
PROJECTILE FIRE EXTINGUISHING INVENTION Mar 8, 2022 Pending
Array ( [id] => 18626974 [patent_doc_number] => 20230285786 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => PROJECTILE FIRE EXTINGUISHING INVENTION [patent_app_type] => utility [patent_app_number] => 17/690284 [patent_app_country] => US [patent_app_date] => 2022-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2720 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17690284 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/690284
PROJECTILE FIRE EXTINGUISHING INVENTION Mar 8, 2022 Pending
Array ( [id] => 17850916 [patent_doc_number] => 20220280957 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-08 [patent_title] => FLUID DELIVERY SYSTEMS FOR USE WITH POWER TOOLS [patent_app_type] => utility [patent_app_number] => 17/680443 [patent_app_country] => US [patent_app_date] => 2022-02-25 [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] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17680443 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/680443
FLUID DELIVERY SYSTEMS FOR USE WITH POWER TOOLS Feb 24, 2022 Abandoned
Array ( [id] => 19126187 [patent_doc_number] => 20240131540 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => PRODUCT DISPENSING SYSTEM COMPRISING A MOTOR DRIVEN AIR PUMP, A DISPENSING DEVICE AND A PRODUCT CONTAINER [patent_app_type] => utility [patent_app_number] => 18/277617 [patent_app_country] => US [patent_app_date] => 2022-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6653 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18277617 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/277617
PRODUCT DISPENSING SYSTEM COMPRISING A MOTOR DRIVEN AIR PUMP, A DISPENSING DEVICE AND A PRODUCT CONTAINER Feb 20, 2022 Pending
Array ( [id] => 19126187 [patent_doc_number] => 20240131540 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => PRODUCT DISPENSING SYSTEM COMPRISING A MOTOR DRIVEN AIR PUMP, A DISPENSING DEVICE AND A PRODUCT CONTAINER [patent_app_type] => utility [patent_app_number] => 18/277617 [patent_app_country] => US [patent_app_date] => 2022-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6653 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18277617 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/277617
PRODUCT DISPENSING SYSTEM COMPRISING A MOTOR DRIVEN AIR PUMP, A DISPENSING DEVICE AND A PRODUCT CONTAINER Feb 20, 2022 Pending
Array ( [id] => 18894008 [patent_doc_number] => 20240009493 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => HANDLE ASSEMBLY FOR A PORTABLE FIRE SUPPRESSION DEVICE [patent_app_type] => utility [patent_app_number] => 18/255821 [patent_app_country] => US [patent_app_date] => 2022-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5804 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18255821 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/255821
HANDLE ASSEMBLY FOR A PORTABLE FIRE SUPPRESSION DEVICE Jan 27, 2022 Pending
Array ( [id] => 18523428 [patent_doc_number] => 20230234083 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => SYSTEM AND METHOD OF ATOMIZING REACTIVE TWO-PART FLUIDS [patent_app_type] => utility [patent_app_number] => 17/586446 [patent_app_country] => US [patent_app_date] => 2022-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3128 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17586446 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/586446
System and method of atomizing reactive two-part fluids Jan 26, 2022 Issued
Array ( [id] => 17836817 [patent_doc_number] => 20220274122 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-01 [patent_title] => ELECTROSTATIC COATING HANDGUN [patent_app_type] => utility [patent_app_number] => 17/583743 [patent_app_country] => US [patent_app_date] => 2022-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5648 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17583743 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/583743
ELECTROSTATIC COATING HANDGUN Jan 24, 2022 Abandoned
Array ( [id] => 18619486 [patent_doc_number] => 11752510 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-12 [patent_title] => Fluid dispenser for recovering material from a surface [patent_app_type] => utility [patent_app_number] => 17/647554 [patent_app_country] => US [patent_app_date] => 2022-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 21 [patent_no_of_words] => 11992 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17647554 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/647554
Fluid dispenser for recovering material from a surface Jan 9, 2022 Issued
Array ( [id] => 20452184 [patent_doc_number] => 12515229 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-06 [patent_title] => Injection valve [patent_app_type] => utility [patent_app_number] => 17/571406 [patent_app_country] => US [patent_app_date] => 2022-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 16 [patent_no_of_words] => 2316 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 434 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17571406 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/571406
Injection valve Jan 6, 2022 Issued
Array ( [id] => 20328734 [patent_doc_number] => 12458994 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Wear resistant distributor post [patent_app_type] => utility [patent_app_number] => 17/647384 [patent_app_country] => US [patent_app_date] => 2022-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 0 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17647384 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/647384
Wear resistant distributor post Jan 6, 2022 Issued
Array ( [id] => 17562167 [patent_doc_number] => 20220126316 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-28 [patent_title] => ATOMIZATION DEVICE, AROMA DIFFUSION INSTRUMENT, AND OPERATION METHOD [patent_app_type] => utility [patent_app_number] => 17/569533 [patent_app_country] => US [patent_app_date] => 2022-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4072 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17569533 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/569533
Atomization device, aroma diffusion instrument, and operation method Jan 5, 2022 Issued
Array ( [id] => 18602732 [patent_doc_number] => 11744171 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-05 [patent_title] => Ready-to-use hose end sprayer [patent_app_type] => utility [patent_app_number] => 17/568983 [patent_app_country] => US [patent_app_date] => 2022-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6537 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 244 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17568983 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/568983
Ready-to-use hose end sprayer Jan 4, 2022 Issued
Array ( [id] => 17562163 [patent_doc_number] => 20220126312 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-28 [patent_title] => WET/DRY HOSE END SPRAYER [patent_app_type] => utility [patent_app_number] => 17/568342 [patent_app_country] => US [patent_app_date] => 2022-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5357 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [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] => 17568342 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/568342
Wet/dry hose end sprayer Jan 3, 2022 Issued
Array ( [id] => 18484065 [patent_doc_number] => 20230211369 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-06 [patent_title] => Arid Land Sprinkler [patent_app_type] => utility [patent_app_number] => 17/567419 [patent_app_country] => US [patent_app_date] => 2022-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5224 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17567419 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/567419
Arid Land Sprinkler Jan 2, 2022 Abandoned
Array ( [id] => 18716876 [patent_doc_number] => 11794201 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-10-24 [patent_title] => Rotary atomizing coating device [patent_app_type] => utility [patent_app_number] => 17/560340 [patent_app_country] => US [patent_app_date] => 2021-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7680 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17560340 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/560340
Rotary atomizing coating device Dec 22, 2021 Issued
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