Search

Sunray Chang

Examiner (ID: 17547, Phone: (571)272-3682 , Office: P/2121 )

Most Active Art Unit
2121
Art Unit(s)
2121
Total Applications
427
Issued Applications
241
Pending Applications
14
Abandoned Applications
172

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19325699 [patent_doc_number] => 12043361 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-07-23 [patent_title] => Exhaust handling systems for marine vessels and related methods [patent_app_type] => utility [patent_app_number] => 18/369485 [patent_app_country] => US [patent_app_date] => 2023-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 17 [patent_no_of_words] => 14187 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18369485 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/369485
Exhaust handling systems for marine vessels and related methods Sep 17, 2023 Issued
Array ( [id] => 19897081 [patent_doc_number] => 12274980 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-15 [patent_title] => Catalytic system and method for the removal of HCN from off-gases of a fluid cracking unit using same, and FCC unit assembly including the catalytic system [patent_app_type] => utility [patent_app_number] => 18/459539 [patent_app_country] => US [patent_app_date] => 2023-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 19 [patent_no_of_words] => 14397 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18459539 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/459539
Catalytic system and method for the removal of HCN from off-gases of a fluid cracking unit using same, and FCC unit assembly including the catalytic system Aug 31, 2023 Issued
Array ( [id] => 19002397 [patent_doc_number] => 20240066468 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => EXHAUST GAS TREATMENT SYSTEM [patent_app_type] => utility [patent_app_number] => 18/239850 [patent_app_country] => US [patent_app_date] => 2023-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6006 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18239850 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/239850
Exhaust gas treatment system Aug 29, 2023 Issued
Array ( [id] => 19020839 [patent_doc_number] => 20240077010 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-07 [patent_title] => SYSTEMS AND METHODS FOR DIAGNOSING COMPONENT FAILURE [patent_app_type] => utility [patent_app_number] => 18/236577 [patent_app_country] => US [patent_app_date] => 2023-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15341 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18236577 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/236577
Systems and methods for diagnosing component failure Aug 21, 2023 Issued
Array ( [id] => 20350389 [patent_doc_number] => 20250347241 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => REDUCING AGENT SUPPLY DEVICE, METHOD FOR CONTROLLING REDUCING AGENT SUPPLY DEVICE, AND CONTROL DEVICE [patent_app_type] => utility [patent_app_number] => 18/871728 [patent_app_country] => US [patent_app_date] => 2023-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2405 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [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] => 18871728 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/871728
REDUCING AGENT SUPPLY DEVICE, METHOD FOR CONTROLLING REDUCING AGENT SUPPLY DEVICE, AND CONTROL DEVICE Aug 17, 2023 Pending
Array ( [id] => 18972704 [patent_doc_number] => 20240052796 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => SYSTEMS AND METHODS FOR FORECASTING AFTERTREATMENT TEMPERATURES OVER A HORIZON [patent_app_type] => utility [patent_app_number] => 18/232038 [patent_app_country] => US [patent_app_date] => 2023-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12887 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18232038 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/232038
Systems and methods for forecasting aftertreatment temperatures over a horizon Aug 8, 2023 Issued
Array ( [id] => 19770827 [patent_doc_number] => 20250052253 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => RADIAL IMPELLER WITH MAXIMIZED INDUCER AREA [patent_app_type] => utility [patent_app_number] => 18/366238 [patent_app_country] => US [patent_app_date] => 2023-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2354 [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] => 18366238 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/366238
Radial impeller with maximized inducer area Aug 6, 2023 Issued
Array ( [id] => 18956196 [patent_doc_number] => 20240044523 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => FAN UNIT FOR AN HVAC SYSTEM [patent_app_type] => utility [patent_app_number] => 18/230063 [patent_app_country] => US [patent_app_date] => 2023-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9856 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18230063 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/230063
Fan unit for an HVAC system Aug 2, 2023 Issued
Array ( [id] => 20737318 [patent_doc_number] => 20260146611 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-05-28 [patent_title] => MUFFLER AND REFRIGERATING SYSTEM COMPRISING MUFFLER [patent_app_type] => utility [patent_app_number] => 19/106601 [patent_app_country] => US [patent_app_date] => 2023-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4532 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19106601 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/106601
MUFFLER AND REFRIGERATING SYSTEM COMPRISING MUFFLER Jul 31, 2023 Pending
Array ( [id] => 20407828 [patent_doc_number] => 20250376937 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-11 [patent_title] => ENHANCED OPERATION OF HYDROGEN AND AMMONIA ENGINES [patent_app_type] => utility [patent_app_number] => 18/876890 [patent_app_country] => US [patent_app_date] => 2023-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11156 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -29 [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] => 18876890 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/876890
ENHANCED OPERATION OF HYDROGEN AND AMMONIA ENGINES Jul 31, 2023 Pending
Array ( [id] => 19731605 [patent_doc_number] => 12209596 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-28 [patent_title] => Configurable bi-directional airflow fan [patent_app_type] => utility [patent_app_number] => 18/353596 [patent_app_country] => US [patent_app_date] => 2023-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 11181 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18353596 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/353596
Configurable bi-directional airflow fan Jul 16, 2023 Issued
Array ( [id] => 20364733 [patent_doc_number] => 20250354545 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-20 [patent_title] => PERISTALTIC PUMP [patent_app_type] => utility [patent_app_number] => 18/881399 [patent_app_country] => US [patent_app_date] => 2023-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1265 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18881399 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/881399
PERISTALTIC PUMP Jul 12, 2023 Pending
Array ( [id] => 18903392 [patent_doc_number] => 20240018877 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => RADIAL TURBINE NOZZLE AND METHOD FOR ASSEMBLING THE SAME [patent_app_type] => utility [patent_app_number] => 18/349422 [patent_app_country] => US [patent_app_date] => 2023-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11412 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 312 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18349422 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/349422
Radial turbine nozzle and method for assembling the same Jul 9, 2023 Issued
Array ( [id] => 18831439 [patent_doc_number] => 20230399966 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => SYSTEMS, DEVICES, AND METHODS FOR REGENERATING A PARTICULATE FILTER [patent_app_type] => utility [patent_app_number] => 18/219600 [patent_app_country] => US [patent_app_date] => 2023-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6410 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [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] => 18219600 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/219600
Systems, devices, and methods for regenerating a particulate filter Jul 6, 2023 Issued
Array ( [id] => 19565296 [patent_doc_number] => 12140060 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-12 [patent_title] => Exhaust gas purification system [patent_app_type] => utility [patent_app_number] => 18/347742 [patent_app_country] => US [patent_app_date] => 2023-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 15 [patent_no_of_words] => 14793 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 232 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18347742 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/347742
Exhaust gas purification system Jul 5, 2023 Issued
Array ( [id] => 18903421 [patent_doc_number] => 20240018906 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => AIRCRAFT PROPULSION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/340982 [patent_app_country] => US [patent_app_date] => 2023-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2311 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18340982 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/340982
AIRCRAFT PROPULSION SYSTEM Jun 25, 2023 Abandoned
Array ( [id] => 20708401 [patent_doc_number] => 20260132729 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-05-14 [patent_title] => HEAT-RESISTANT, AUSTENITIC CAST STEEL, AND EXHAUST MEMBER MADE THEREOF [patent_app_type] => utility [patent_app_number] => 18/873375 [patent_app_country] => US [patent_app_date] => 2023-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2675 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18873375 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/873375
HEAT-RESISTANT, AUSTENITIC CAST STEEL, AND EXHAUST MEMBER MADE THEREOF Jun 15, 2023 Pending
Array ( [id] => 20718533 [patent_doc_number] => 12633796 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-19 [patent_title] => Electric compressor [patent_app_type] => utility [patent_app_number] => 18/871606 [patent_app_country] => US [patent_app_date] => 2023-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18871606 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/871606
Electric compressor Jun 8, 2023 Issued
Array ( [id] => 20289005 [patent_doc_number] => 20250314248 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-09 [patent_title] => SCREW PUMP AND ITS COMPONENTS [patent_app_type] => utility [patent_app_number] => 18/872467 [patent_app_country] => US [patent_app_date] => 2023-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1139 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 18872467 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/872467
SCREW PUMP AND ITS COMPONENTS Jun 8, 2023 Pending
Array ( [id] => 18831443 [patent_doc_number] => 20230399970 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 18/329624 [patent_app_country] => US [patent_app_date] => 2023-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11947 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18329624 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/329624
Controller and control method for internal combustion engine Jun 5, 2023 Issued
Menu