Search

Duy Khuong Thanh Nguyen

Examiner (ID: 2286, Phone: (571)270-7139 , Office: P/2197 )

Most Active Art Unit
2199
Art Unit(s)
2199, 2197
Total Applications
615
Issued Applications
455
Pending Applications
68
Abandoned Applications
99

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20687538 [patent_doc_number] => 12617673 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-05 [patent_title] => Systems and methods for phase-safe ammonia vapor fuel delivery to an internal combustion engine [patent_app_type] => utility [patent_app_number] => 19/335710 [patent_app_country] => US [patent_app_date] => 2025-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 32 [patent_figures_cnt] => 32 [patent_no_of_words] => 12303 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19335710 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/335710
Systems and methods for phase-safe ammonia vapor fuel delivery to an internal combustion engine Sep 21, 2025 Issued
Array ( [id] => 20232395 [patent_doc_number] => 20250289714 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-18 [patent_title] => SYSTEMS AND METHODS FOR SUPPLEMENTING RADIATOR COOLING WITH AN AMMONIA HEAT-EXCHANGE UNIT AND ADJUSTABLE AIR INTAKE LOUVERS [patent_app_type] => utility [patent_app_number] => 19/222111 [patent_app_country] => US [patent_app_date] => 2025-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10066 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 258 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19222111 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/222111
Systems and methods for supplementing radiator cooling with an ammonia heat-exchange unit and adjustable air intake louvers May 28, 2025 Issued
Array ( [id] => 20364717 [patent_doc_number] => 20250354529 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-20 [patent_title] => METHOD FOR INJECTING AN OXIDISER-FUEL GASEOUS MIXTURE [patent_app_type] => utility [patent_app_number] => 19/189811 [patent_app_country] => US [patent_app_date] => 2025-04-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4534 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 736 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19189811 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/189811
METHOD FOR INJECTING AN OXIDISER-FUEL GASEOUS MIXTURE Apr 24, 2025 Pending
Array ( [id] => 20393924 [patent_doc_number] => 20250369399 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-04 [patent_title] => CONTROLLER FOR INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 19/189153 [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] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19189153 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/189153
CONTROLLER FOR INTERNAL COMBUSTION ENGINE Apr 23, 2025 Issued
Array ( [id] => 20165657 [patent_doc_number] => 20250257703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-14 [patent_title] => ENHANCED FUEL MIXING SYSTEMS FOR DIRECT INJECTED NATURAL GAS ENGINES, AND DEVICES AND METHODS THEREOF [patent_app_type] => utility [patent_app_number] => 19/171038 [patent_app_country] => US [patent_app_date] => 2025-04-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11315 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 19171038 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/171038
ENHANCED FUEL MIXING SYSTEMS FOR DIRECT INJECTED NATURAL GAS ENGINES, AND DEVICES AND METHODS THEREOF Apr 3, 2025 Pending
Array ( [id] => 20364694 [patent_doc_number] => 20250354506 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-20 [patent_title] => ENGINE [patent_app_type] => utility [patent_app_number] => 19/093315 [patent_app_country] => US [patent_app_date] => 2025-03-28 [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] => -3 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19093315 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/093315
ENGINE Mar 27, 2025 Issued
Array ( [id] => 20280223 [patent_doc_number] => 20250305465 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-02 [patent_title] => VEHICLE [patent_app_type] => utility [patent_app_number] => 19/091835 [patent_app_country] => US [patent_app_date] => 2025-03-27 [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] => -3 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19091835 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/091835
VEHICLE Mar 26, 2025 Pending
Array ( [id] => 20084079 [patent_doc_number] => 20250214015 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-03 [patent_title] => AIR FILTER PRECLEANER [patent_app_type] => utility [patent_app_number] => 19/088243 [patent_app_country] => US [patent_app_date] => 2025-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4681 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19088243 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/088243
AIR FILTER PRECLEANER Mar 23, 2025 Pending
Array ( [id] => 20248719 [patent_doc_number] => 20250297588 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-25 [patent_title] => Gaseous Fuel Mixing Block [patent_app_type] => utility [patent_app_number] => 19/074773 [patent_app_country] => US [patent_app_date] => 2025-03-10 [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] => -5 [patent_words_short_claim] => 204 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19074773 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/074773
Gaseous Fuel Mixing Block Mar 9, 2025 Pending
Array ( [id] => 20499498 [patent_doc_number] => 20260028956 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-29 [patent_title] => INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 19/055708 [patent_app_country] => US [patent_app_date] => 2025-02-18 [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] => -4 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19055708 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/055708
INTERNAL COMBUSTION ENGINE Feb 17, 2025 Issued
Array ( [id] => 20321993 [patent_doc_number] => 20250334081 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-30 [patent_title] => FLEX FUEL VEHICLE [patent_app_type] => utility [patent_app_number] => 19/045849 [patent_app_country] => US [patent_app_date] => 2025-02-05 [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] => -5 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19045849 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/045849
FLEX FUEL VEHICLE Feb 4, 2025 Pending
Array ( [id] => 20041758 [patent_doc_number] => 20250179980 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => GROOVED INJECTOR NOZZLE COMBUSTION SHIELD [patent_app_type] => utility [patent_app_number] => 19/046109 [patent_app_country] => US [patent_app_date] => 2025-02-05 [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] => -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] => 19046109 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/046109
GROOVED INJECTOR NOZZLE COMBUSTION SHIELD Feb 4, 2025 Pending
Array ( [id] => 20033891 [patent_doc_number] => 20250172113 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-29 [patent_title] => AIR INLET ASSEMBLY OF ENGINE, ENGINE, AND VEHICLE [patent_app_type] => utility [patent_app_number] => 19/037939 [patent_app_country] => US [patent_app_date] => 2025-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2413 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19037939 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/037939
AIR INLET ASSEMBLY OF ENGINE, ENGINE, AND VEHICLE Jan 26, 2025 Pending
Array ( [id] => 20634900 [patent_doc_number] => 12595771 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-07 [patent_title] => Vehicle with engine [patent_app_type] => utility [patent_app_number] => 19/005191 [patent_app_country] => US [patent_app_date] => 2024-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 0 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [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] => 19005191 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/005191
Vehicle with engine Dec 29, 2024 Issued
Array ( [id] => 20194257 [patent_doc_number] => 20250270967 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-28 [patent_title] => VEHICLE WITH ENGINE [patent_app_type] => utility [patent_app_number] => 19/001778 [patent_app_country] => US [patent_app_date] => 2024-12-26 [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] => -4 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19001778 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/001778
VEHICLE WITH ENGINE Dec 25, 2024 Issued
Array ( [id] => 20060152 [patent_doc_number] => 20250198374 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 18/981852 [patent_app_country] => US [patent_app_date] => 2024-12-16 [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] => -8 [patent_words_short_claim] => 301 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18981852 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/981852
FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE Dec 15, 2024 Pending
Array ( [id] => 20634884 [patent_doc_number] => 12595755 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-07 [patent_title] => Rocker arm for brake with integrated hydraulic capsule [patent_app_type] => utility [patent_app_number] => 18/972251 [patent_app_country] => US [patent_app_date] => 2024-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18972251 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/972251
Rocker arm for brake with integrated hydraulic capsule Dec 5, 2024 Issued
Array ( [id] => 20041733 [patent_doc_number] => 20250179955 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => COOLANT DISTRIBUTION SYSTEM, METHOD OF MANUFACTURING [patent_app_type] => utility [patent_app_number] => 18/970379 [patent_app_country] => US [patent_app_date] => 2024-12-05 [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] => -10 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18970379 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/970379
COOLANT DISTRIBUTION SYSTEM, METHOD OF MANUFACTURING Dec 4, 2024 Pending
Array ( [id] => 20041744 [patent_doc_number] => 20250179966 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-05 [patent_title] => ENGINE BRAKING MODE SELECTION SYSTEMS AND METHODS [patent_app_type] => utility [patent_app_number] => 18/963339 [patent_app_country] => US [patent_app_date] => 2024-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14565 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18963339 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/963339
Engine braking mode selection systems and methods Nov 26, 2024 Issued
Array ( [id] => 20608857 [patent_doc_number] => 12584451 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-24 [patent_title] => Method of and system for controlling marine propulsion device [patent_app_type] => utility [patent_app_number] => 18/958645 [patent_app_country] => US [patent_app_date] => 2024-11-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18958645 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/958645
Method of and system for controlling marine propulsion device Nov 24, 2024 Issued
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