Search

Hoang M. Nguyen

Examiner (ID: 12029, Phone: (571)272-4861 , Office: P/3748 )

Most Active Art Unit
3748
Art Unit(s)
3748, 2899, 3401, 3746, 3745
Total Applications
5340
Issued Applications
4261
Pending Applications
359
Abandoned Applications
764

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20248690 [patent_doc_number] => 20250297559 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-25 [patent_title] => SUPERCRITICAL CARBON DIOXIDE REGENERATIVE BRAYTON CYCLE WITH MULTIPLE RECUPERATORS AND AUXILIARY COMPRESSORS [patent_app_type] => utility [patent_app_number] => 18/708913 [patent_app_country] => US [patent_app_date] => 2022-11-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2159 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 649 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18708913 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/708913
Supercritical carbon dioxide regenerative Brayton cycle with multiple recuperators and auxiliary compressors Nov 10, 2022 Issued
Array ( [id] => 19659194 [patent_doc_number] => 20240426259 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => THERMAL OSCILLATION SYSTEMS [patent_app_type] => utility [patent_app_number] => 18/708219 [patent_app_country] => US [patent_app_date] => 2022-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13377 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18708219 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/708219
Thermal oscillation systems Nov 9, 2022 Issued
Array ( [id] => 18361072 [patent_doc_number] => 20230142663 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => STIRLING ENGINE [patent_app_type] => utility [patent_app_number] => 17/982196 [patent_app_country] => US [patent_app_date] => 2022-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5751 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17982196 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/982196
Stirling engine Nov 6, 2022 Issued
Array ( [id] => 19441840 [patent_doc_number] => 12092086 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-17 [patent_title] => Geopressure and geothermal power system [patent_app_type] => utility [patent_app_number] => 18/264651 [patent_app_country] => US [patent_app_date] => 2022-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 6372 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18264651 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/264651
Geopressure and geothermal power system Nov 6, 2022 Issued
Array ( [id] => 18254537 [patent_doc_number] => 20230081576 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-16 [patent_title] => PUMPED HEAT ENERGY STORAGE SYSTEM WITH LOAD FOLLOWING [patent_app_type] => utility [patent_app_number] => 18/051253 [patent_app_country] => US [patent_app_date] => 2022-10-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 55820 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18051253 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/051253
Pumped heat energy storage system with load following Oct 30, 2022 Issued
Array ( [id] => 20302970 [patent_doc_number] => 12448954 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-21 [patent_title] => Buoyant force utilization device [patent_app_type] => utility [patent_app_number] => 18/704599 [patent_app_country] => US [patent_app_date] => 2022-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5369 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 409 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18704599 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/704599
Buoyant force utilization device Oct 27, 2022 Issued
Array ( [id] => 18710219 [patent_doc_number] => 20230332843 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => COMPRESSED GAS ENERGY STORAGE SYSTEM [patent_app_type] => utility [patent_app_number] => 17/974363 [patent_app_country] => US [patent_app_date] => 2022-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24076 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 310 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17974363 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/974363
Compressed gas energy storage system Oct 25, 2022 Issued
Array ( [id] => 18338297 [patent_doc_number] => 20230130246 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-27 [patent_title] => GeoHeat Harvesting Enhancement [patent_app_type] => utility [patent_app_number] => 17/970892 [patent_app_country] => US [patent_app_date] => 2022-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7229 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17970892 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/970892
GeoHeat harvesting enhancement Oct 20, 2022 Issued
Array ( [id] => 19113555 [patent_doc_number] => 20240125305 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => ENERGY PRODUCTION FROM DEEP OCEAN PRESSURE [patent_app_type] => utility [patent_app_number] => 18/046334 [patent_app_country] => US [patent_app_date] => 2022-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5738 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [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] => 18046334 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/046334
ENERGY PRODUCTION FROM DEEP OCEAN PRESSURE Oct 12, 2022 Abandoned
Array ( [id] => 19242727 [patent_doc_number] => 12013155 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-18 [patent_title] => Self-contained in-ground geothermal generator and heat exchanger with in-line pump used in several alternative applications including the restoration of the Salton Sea [patent_app_type] => utility [patent_app_number] => 18/045691 [patent_app_country] => US [patent_app_date] => 2022-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 134 [patent_figures_cnt] => 155 [patent_no_of_words] => 46726 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 848 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18045691 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/045691
Self-contained in-ground geothermal generator and heat exchanger with in-line pump used in several alternative applications including the restoration of the Salton Sea Oct 10, 2022 Issued
Array ( [id] => 18164914 [patent_doc_number] => 20230031511 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-02 [patent_title] => AIRCRAFT POWER PLANT WITH SUPERCRITICAL CO2 HEAT ENGINE [patent_app_type] => utility [patent_app_number] => 17/957058 [patent_app_country] => US [patent_app_date] => 2022-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4084 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17957058 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/957058
Aircraft power plant with supercritical CO Sep 29, 2022 Issued
Array ( [id] => 19904665 [patent_doc_number] => 12281662 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-22 [patent_title] => Fluid pressure actuator [patent_app_type] => utility [patent_app_number] => 18/713701 [patent_app_country] => US [patent_app_date] => 2022-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 3252 [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] => 18713701 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/713701
Fluid pressure actuator Sep 27, 2022 Issued
Array ( [id] => 19601822 [patent_doc_number] => 20240392702 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => DOWNHOLE HEAT EXCHANGER FOR GEOTHERMAL POWER SYSTEMS [patent_app_type] => utility [patent_app_number] => 18/694323 [patent_app_country] => US [patent_app_date] => 2022-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10299 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18694323 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/694323
DOWNHOLE HEAT EXCHANGER FOR GEOTHERMAL POWER SYSTEMS Sep 25, 2022 Abandoned
Array ( [id] => 19027782 [patent_doc_number] => 11927130 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-12 [patent_title] => Pump control of closed cycle power generation system [patent_app_type] => utility [patent_app_number] => 17/952753 [patent_app_country] => US [patent_app_date] => 2022-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 32 [patent_no_of_words] => 32310 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17952753 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/952753
Pump control of closed cycle power generation system Sep 25, 2022 Issued
Array ( [id] => 19615824 [patent_doc_number] => 20240401504 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => LNG COLD POWER GENERATION USING MIXED WORKING FLUID [patent_app_type] => utility [patent_app_number] => 18/698658 [patent_app_country] => US [patent_app_date] => 2022-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2907 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 23 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18698658 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/698658
LNG COLD POWER GENERATION USING MIXED WORKING FLUID Sep 22, 2022 Pending
Array ( [id] => 18140932 [patent_doc_number] => 20230014773 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => SYSTEMS AND METHODS UTILIZING GAS TEMPERATURE AS A POWER SOURCE [patent_app_type] => utility [patent_app_number] => 17/934339 [patent_app_country] => US [patent_app_date] => 2022-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16812 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17934339 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/934339
Systems and methods utilizing gas temperature as a power source Sep 21, 2022 Issued
Array ( [id] => 18141135 [patent_doc_number] => 20230014977 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-19 [patent_title] => COMPACT SMA ACTUATOR [patent_app_type] => utility [patent_app_number] => 17/946301 [patent_app_country] => US [patent_app_date] => 2022-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8019 [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] => 17946301 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/946301
Compact SMA actuator Sep 15, 2022 Issued
Array ( [id] => 19572565 [patent_doc_number] => 20240376857 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => SUBMERGED FIN FOR WAVE ENERGY CONVERSION [patent_app_type] => utility [patent_app_number] => 18/690625 [patent_app_country] => US [patent_app_date] => 2022-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3007 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18690625 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/690625
Submerged fin for wave energy conversion Sep 11, 2022 Issued
Array ( [id] => 18093985 [patent_doc_number] => 20220412326 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => METHODS FOR CONTROLLING SMA ACTUATORS [patent_app_type] => utility [patent_app_number] => 17/900986 [patent_app_country] => US [patent_app_date] => 2022-09-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6696 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17900986 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/900986
Methods for controlling SMA actuators Aug 31, 2022 Issued
Array ( [id] => 18078201 [patent_doc_number] => 20220403813 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => WAVE ENERGY DEVICE WITH CONSTRICTED TUBE AND GENERATOR POD [patent_app_type] => utility [patent_app_number] => 17/895010 [patent_app_country] => US [patent_app_date] => 2022-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 22086 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17895010 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/895010
Wave energy device with constricted tube and generator pod Aug 23, 2022 Issued
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