Search

Douglas Q. Tran

Examiner (ID: 7418, Phone: (571)272-7442 , Office: P/2672 )

Most Active Art Unit
2672
Art Unit(s)
2724, 2673, 2672, 2624, 2625
Total Applications
1570
Issued Applications
1490
Pending Applications
8
Abandoned Applications
75

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20393940 [patent_doc_number] => 20250369415 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-04 [patent_title] => PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINE WITH ENERGY PRODUCT GENERATION AND TRANSPORT [patent_app_type] => utility [patent_app_number] => 19/298067 [patent_app_country] => US [patent_app_date] => 2025-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 31722 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [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] => 19298067 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/298067
PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINE WITH ENERGY PRODUCT GENERATION AND TRANSPORT Aug 11, 2025 Pending
Array ( [id] => 20350405 [patent_doc_number] => 20250347257 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => THERMAL OSCILLATION SYSTEMS [patent_app_type] => utility [patent_app_number] => 19/271801 [patent_app_country] => US [patent_app_date] => 2025-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9030 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19271801 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/271801
THERMAL OSCILLATION SYSTEMS Jul 16, 2025 Pending
Array ( [id] => 20459952 [patent_doc_number] => 20260009376 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-08 [patent_title] => SOLAR ENERGY SYSTEM WITH THERMAL ENERGY STORAGE [patent_app_type] => utility [patent_app_number] => 19/262978 [patent_app_country] => US [patent_app_date] => 2025-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19061 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [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] => 19262978 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/262978
SOLAR ENERGY SYSTEM WITH THERMAL ENERGY STORAGE Jul 7, 2025 Pending
Array ( [id] => 20393950 [patent_doc_number] => 20250369425 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-04 [patent_title] => GEOTHERMAL POWER GENERATION SYSTEM [patent_app_type] => utility [patent_app_number] => 19/247403 [patent_app_country] => US [patent_app_date] => 2025-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4546 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 19247403 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/247403
GEOTHERMAL POWER GENERATION SYSTEM Jun 23, 2025 Pending
Array ( [id] => 20248699 [patent_doc_number] => 20250297568 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-25 [patent_title] => METHOD FOR MONITORING AN EXHAUST GAS CATALYTIC CONVERTER OF AN INTERNAL COMBUSTION ENGINE [patent_app_type] => utility [patent_app_number] => 19/231743 [patent_app_country] => US [patent_app_date] => 2025-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3091 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19231743 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/231743
METHOD FOR MONITORING AN EXHAUST GAS CATALYTIC CONVERTER OF AN INTERNAL COMBUSTION ENGINE Jun 8, 2025 Pending
Array ( [id] => 20241862 [patent_doc_number] => 12422172 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-23 [patent_title] => Solar energy system with rankine cycle [patent_app_type] => utility [patent_app_number] => 19/208674 [patent_app_country] => US [patent_app_date] => 2025-05-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 29 [patent_figures_cnt] => 29 [patent_no_of_words] => 14399 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [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] => 19208674 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/208674
Solar energy system with rankine cycle May 14, 2025 Issued
Array ( [id] => 20536278 [patent_doc_number] => 12553345 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-17 [patent_title] => Organic rankine cycle decompression heat engine [patent_app_type] => utility [patent_app_number] => 19/201398 [patent_app_country] => US [patent_app_date] => 2025-05-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 26 [patent_no_of_words] => 23058 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 1 [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] => 19201398 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/201398
Organic rankine cycle decompression heat engine May 6, 2025 Issued
Array ( [id] => 20309800 [patent_doc_number] => 20250327429 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-23 [patent_title] => INTERNAL COMBUSTION ENGINE, ARRANGEMENT, METHOD AND COMPUTER PROGRAM PRODUCT [patent_app_type] => utility [patent_app_number] => 19/183593 [patent_app_country] => US [patent_app_date] => 2025-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2022 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 19183593 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/183593
INTERNAL COMBUSTION ENGINE, ARRANGEMENT, METHOD AND COMPUTER PROGRAM PRODUCT Apr 17, 2025 Pending
Array ( [id] => 20294519 [patent_doc_number] => 20250319762 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => ROAD CAR WITH SIDE EXHAUSTS [patent_app_type] => utility [patent_app_number] => 19/173026 [patent_app_country] => US [patent_app_date] => 2025-04-08 [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] => -9 [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] => 19173026 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/173026
ROAD CAR WITH SIDE EXHAUSTS Apr 7, 2025 Pending
Array ( [id] => 20280190 [patent_doc_number] => 20250305432 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-02 [patent_title] => SYSTEMS AND METHODS FOR CONTROLLING THE TEMPERATURE OF AN AFTERTREATMENT SYSTEM [patent_app_type] => utility [patent_app_number] => 19/089752 [patent_app_country] => US [patent_app_date] => 2025-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3477 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19089752 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/089752
SYSTEMS AND METHODS FOR CONTROLLING THE TEMPERATURE OF AN AFTERTREATMENT SYSTEM Mar 24, 2025 Pending
Array ( [id] => 20280191 [patent_doc_number] => 20250305433 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-02 [patent_title] => EXHAUST AFTERTREATMENT UNIT [patent_app_type] => utility [patent_app_number] => 19/089884 [patent_app_country] => US [patent_app_date] => 2025-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3332 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19089884 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/089884
EXHAUST AFTERTREATMENT UNIT Mar 24, 2025 Pending
Array ( [id] => 20085877 [patent_doc_number] => 20250215813 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-03 [patent_title] => HEAT ENGINE [patent_app_type] => utility [patent_app_number] => 19/081414 [patent_app_country] => US [patent_app_date] => 2025-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 22169 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19081414 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/081414
HEAT ENGINE Mar 16, 2025 Pending
Array ( [id] => 20069599 [patent_doc_number] => 20250207821 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-26 [patent_title] => SYSTEM AND METHOD FOR ENERGY AND RESOURCE EXTRACTION WITH REDUCED EMISSIONS [patent_app_type] => utility [patent_app_number] => 19/065166 [patent_app_country] => US [patent_app_date] => 2025-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6135 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 19065166 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/065166
SYSTEM AND METHOD FOR ENERGY AND RESOURCE EXTRACTION WITH REDUCED EMISSIONS Feb 26, 2025 Pending
Array ( [id] => 20060142 [patent_doc_number] => 20250198364 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => POWER GENERATION SYSTEM [patent_app_type] => utility [patent_app_number] => 19/059795 [patent_app_country] => US [patent_app_date] => 2025-02-21 [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] => -19 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19059795 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/059795
POWER GENERATION SYSTEM Feb 20, 2025 Pending
Array ( [id] => 20060091 [patent_doc_number] => 20250198313 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => METHOD OF GENERATING POWER [patent_app_type] => utility [patent_app_number] => 19/060216 [patent_app_country] => US [patent_app_date] => 2025-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9793 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19060216 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/060216
METHOD OF GENERATING POWER Feb 20, 2025 Pending
Array ( [id] => 20033908 [patent_doc_number] => 20250172130 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-29 [patent_title] => ACTUATOR WITH CONTRACTING MEMBER [patent_app_type] => utility [patent_app_number] => 19/041197 [patent_app_country] => US [patent_app_date] => 2025-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 25254 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -45 [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] => 19041197 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/041197
ACTUATOR WITH CONTRACTING MEMBER Jan 29, 2025 Pending
Array ( [id] => 20136746 [patent_doc_number] => 20250243790 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-31 [patent_title] => AMBIENT TEMPERATURE THERMAL ADAPTER FOR SUPERCRITICAL CARBON DIOXIDE POWER CYCLE [patent_app_type] => utility [patent_app_number] => 19/036900 [patent_app_country] => US [patent_app_date] => 2025-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6193 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19036900 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/036900
AMBIENT TEMPERATURE THERMAL ADAPTER FOR SUPERCRITICAL CARBON DIOXIDE POWER CYCLE Jan 23, 2025 Pending
Array ( [id] => 20122168 [patent_doc_number] => 20250237199 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-24 [patent_title] => Combined Power Generation using Geothermal and Solar Energy [patent_app_type] => utility [patent_app_number] => 19/029489 [patent_app_country] => US [patent_app_date] => 2025-01-17 [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] => -17 [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] => 19029489 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/029489
Combined Power Generation using Geothermal and Solar Energy Jan 16, 2025 Pending
Array ( [id] => 20387114 [patent_doc_number] => 12486835 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Fluid compression apparatus and method [patent_app_type] => utility [patent_app_number] => 19/028879 [patent_app_country] => US [patent_app_date] => 2025-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19028879 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/028879
Fluid compression apparatus and method Jan 16, 2025 Issued
Array ( [id] => 20016662 [patent_doc_number] => 20250154884 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => COMBINED CYCLE POWER GENERATION FACILITY [patent_app_type] => utility [patent_app_number] => 19/025071 [patent_app_country] => US [patent_app_date] => 2025-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2364 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19025071 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/025071
COMBINED CYCLE POWER GENERATION FACILITY Jan 15, 2025 Pending
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