Search

Hoang M. Nguyen

Examiner (ID: 18575, Phone: (571)272-4861 , Office: P/3748 )

Most Active Art Unit
3748
Art Unit(s)
3748, 3401, 3746, 3745, 2899
Total Applications
5355
Issued Applications
4272
Pending Applications
350
Abandoned Applications
767

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19904604 [patent_doc_number] => 12281601 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-22 [patent_title] => Heat engine [patent_app_type] => utility [patent_app_number] => 18/421132 [patent_app_country] => US [patent_app_date] => 2024-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 30 [patent_no_of_words] => 22195 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18421132 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/421132
Heat engine Jan 23, 2024 Issued
Array ( [id] => 19266056 [patent_doc_number] => 20240209755 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => REACTION TURBINE OPERATING ON CONDENSING VAPORS [patent_app_type] => utility [patent_app_number] => 18/420207 [patent_app_country] => US [patent_app_date] => 2024-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6238 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18420207 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/420207
REACTION TURBINE OPERATING ON CONDENSING VAPORS Jan 22, 2024 Pending
Array ( [id] => 20623178 [patent_doc_number] => 12590679 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-31 [patent_title] => System for circulating a liquid [patent_app_type] => utility [patent_app_number] => 18/402877 [patent_app_country] => US [patent_app_date] => 2024-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 284 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18402877 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/402877
System for circulating a liquid Jan 2, 2024 Issued
Array ( [id] => 19282340 [patent_doc_number] => 20240218814 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-04 [patent_title] => HYDROGEN EXPANSION SYSTEM FOR FUEL CELL USE [patent_app_type] => utility [patent_app_number] => 18/398795 [patent_app_country] => US [patent_app_date] => 2023-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7212 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 69 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18398795 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/398795
Hydrogen expansion system for fuel cell use Dec 27, 2023 Issued
Array ( [id] => 19390220 [patent_doc_number] => 20240280090 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => ACTUATOR WITH CONTRACTING MEMBER [patent_app_type] => utility [patent_app_number] => 18/399026 [patent_app_country] => US [patent_app_date] => 2023-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 29770 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -58 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18399026 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/399026
Actuator with contracting member Dec 27, 2023 Issued
Array ( [id] => 19668126 [patent_doc_number] => 12180861 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-12-31 [patent_title] => Systems and methods to utilize heat carriers in conversion of thermal energy [patent_app_type] => utility [patent_app_number] => 18/397037 [patent_app_country] => US [patent_app_date] => 2023-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 8442 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18397037 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/397037
Systems and methods to utilize heat carriers in conversion of thermal energy Dec 26, 2023 Issued
Array ( [id] => 19498180 [patent_doc_number] => 20240337198 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-10 [patent_title] => FAST RESPONSE ACTIVE CLEARANCE SYSTEMS WITH PIEZOELECTRIC ACTUATOR IN AXIAL, AXIAL/RADIAL COMBINED, AND CIRCUMFERENTIAL DIRECTIONS [patent_app_type] => utility [patent_app_number] => 18/393389 [patent_app_country] => US [patent_app_date] => 2023-12-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 29329 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18393389 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/393389
Fast response active clearance systems with piezoelectric actuator in axial, axial/radial combined, and circumferential directions Dec 20, 2023 Issued
Array ( [id] => 20511998 [patent_doc_number] => 20260036099 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-05 [patent_title] => HOT AIR ENGINE [patent_app_type] => utility [patent_app_number] => 19/136060 [patent_app_country] => US [patent_app_date] => 2023-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1270 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 19136060 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/136060
HOT AIR ENGINE Dec 18, 2023 Pending
18/544103 SYSTEMS AND METHODS FOR PRODUCING CLEAN ENERGY Dec 17, 2023 Abandoned
Array ( [id] => 19651906 [patent_doc_number] => 12173683 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-24 [patent_title] => Pressure-regulating hydrodynamic pump and wave engine [patent_app_type] => utility [patent_app_number] => 18/539260 [patent_app_country] => US [patent_app_date] => 2023-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 23576 [patent_no_of_claims] => 22 [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] => 18539260 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/539260
Pressure-regulating hydrodynamic pump and wave engine Dec 12, 2023 Issued
Array ( [id] => 19651870 [patent_doc_number] => 12173647 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-24 [patent_title] => Systems and methods for carbon dioxide-based energy storage and power generation [patent_app_type] => utility [patent_app_number] => 18/525484 [patent_app_country] => US [patent_app_date] => 2023-11-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 16 [patent_no_of_words] => 17797 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18525484 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/525484
Systems and methods for carbon dioxide-based energy storage and power generation Nov 29, 2023 Issued
Array ( [id] => 19579602 [patent_doc_number] => 12145698 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-19 [patent_title] => Methods and systems for free-floating nautical stationkeeping [patent_app_type] => utility [patent_app_number] => 18/388746 [patent_app_country] => US [patent_app_date] => 2023-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 26 [patent_figures_cnt] => 30 [patent_no_of_words] => 18148 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18388746 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/388746
Methods and systems for free-floating nautical stationkeeping Nov 9, 2023 Issued
Array ( [id] => 18988716 [patent_doc_number] => 20240060685 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => Method for Thermal Profile Control and Energy Recovery in Geothermal Wells [patent_app_type] => utility [patent_app_number] => 18/501582 [patent_app_country] => US [patent_app_date] => 2023-11-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4763 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18501582 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/501582
Method for thermal profile control and energy recovery in geothermal wells Nov 2, 2023 Issued
Array ( [id] => 19738786 [patent_doc_number] => 12215610 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-02-04 [patent_title] => Air turbine energy recapture system [patent_app_type] => utility [patent_app_number] => 18/376225 [patent_app_country] => US [patent_app_date] => 2023-10-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3428 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [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] => 18376225 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/376225
Air turbine energy recapture system Oct 2, 2023 Issued
Array ( [id] => 19876656 [patent_doc_number] => 20250108913 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-03 [patent_title] => ENERGY RECOVERY DURING CARBON CAPTURE IN PREFORM PRODUCTION PROCESS [patent_app_type] => utility [patent_app_number] => 18/477283 [patent_app_country] => US [patent_app_date] => 2023-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9217 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18477283 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/477283
ENERGY RECOVERY DURING CARBON CAPTURE IN PREFORM PRODUCTION PROCESS Sep 27, 2023 Pending
Array ( [id] => 18894381 [patent_doc_number] => 20240009866 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => FLUIDIC SOLAR ARRAY ACTUATION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/371666 [patent_app_country] => US [patent_app_date] => 2023-09-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12884 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18371666 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/371666
FLUIDIC SOLAR ARRAY ACTUATION SYSTEM Sep 21, 2023 Pending
Array ( [id] => 19077323 [patent_doc_number] => 11946679 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-04-02 [patent_title] => Exhaust gas heat recovery from cryo-compression engines with cogeneration of cryo-working fluid [patent_app_type] => utility [patent_app_number] => 18/241935 [patent_app_country] => US [patent_app_date] => 2023-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 10308 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18241935 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/241935
Exhaust gas heat recovery from cryo-compression engines with cogeneration of cryo-working fluid Sep 3, 2023 Issued
Array ( [id] => 19425648 [patent_doc_number] => 12085052 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-10 [patent_title] => Wave energy device with constricted tube and generator pod [patent_app_type] => utility [patent_app_number] => 18/239695 [patent_app_country] => US [patent_app_date] => 2023-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 89 [patent_figures_cnt] => 98 [patent_no_of_words] => 22115 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18239695 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/239695
Wave energy device with constricted tube and generator pod Aug 28, 2023 Issued
Array ( [id] => 19624673 [patent_doc_number] => 12163485 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-10 [patent_title] => Systems and methods utilizing gas temperature as a power source [patent_app_type] => utility [patent_app_number] => 18/456628 [patent_app_country] => US [patent_app_date] => 2023-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 16952 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 218 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18456628 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/456628
Systems and methods utilizing gas temperature as a power source Aug 27, 2023 Issued
Array ( [id] => 19158456 [patent_doc_number] => 20240151163 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-09 [patent_title] => METHOD TO MAXIMIZE ENERGY RECOVERY IN WASTE-TO-ENERGY PROCESSES [patent_app_type] => utility [patent_app_number] => 18/235139 [patent_app_country] => US [patent_app_date] => 2023-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3368 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18235139 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/235139
METHOD TO MAXIMIZE ENERGY RECOVERY IN WASTE-TO-ENERGY PROCESSES Aug 16, 2023 Abandoned
Menu