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] => 17867538 [patent_doc_number] => 20220290274 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-15 [patent_title] => METHOD FOR NUMERICAL SIMULATION OF REACTIVE TRANSPORT DURING CO2+O2 IN-SITU LEACHING OF URANIUM AT SANDSTONE-TYPE URANIUM DEPOSIT [patent_app_type] => utility [patent_app_number] => 17/531300 [patent_app_country] => US [patent_app_date] => 2021-11-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4827 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 355 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17531300 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/531300
Method for numerical simulation of reactive transport during CO Nov 18, 2021 Issued
Array ( [id] => 18845345 [patent_doc_number] => 20230407749 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-21 [patent_title] => TURBINE ENGINE ROTOR ELEMENT ASSEMBLY EQUIPPED WITH A SEALING DEVICE [patent_app_type] => utility [patent_app_number] => 18/252280 [patent_app_country] => US [patent_app_date] => 2021-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6094 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18252280 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/252280
Turbine engine rotor element assembly equipped with a sealing device Nov 16, 2021 Issued
Array ( [id] => 19724935 [patent_doc_number] => 20250027686 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-23 [patent_title] => MITIGATING FLUID LOSS OR INFLOW IN A CLOSED-LOOP GEOTHERMAL SYSTEM [patent_app_type] => utility [patent_app_number] => 18/711333 [patent_app_country] => US [patent_app_date] => 2021-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5765 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18711333 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/711333
Mitigating fluid loss or inflow in a closed-loop geothermal system Nov 16, 2021 Issued
Array ( [id] => 17615126 [patent_doc_number] => 20220157406 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-19 [patent_title] => METHODS AND APPARATUS FOR ENHANCED OIL RECOVERY [patent_app_type] => utility [patent_app_number] => 17/527400 [patent_app_country] => US [patent_app_date] => 2021-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18206 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17527400 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/527400
Methods and apparatus for enhanced oil recovery Nov 15, 2021 Issued
Array ( [id] => 17954062 [patent_doc_number] => 11480160 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-10-25 [patent_title] => Hybrid solar-geothermal power generation system [patent_app_type] => utility [patent_app_number] => 17/527791 [patent_app_country] => US [patent_app_date] => 2021-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 18 [patent_no_of_words] => 12416 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 452 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17527791 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/527791
Hybrid solar-geothermal power generation system Nov 15, 2021 Issued
Array ( [id] => 17792886 [patent_doc_number] => 20220251977 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-11 [patent_title] => METHOD TO MAXIMIZE ENERGY RECOVERY IN WASTE-TO-ENERGY PROCESSES [patent_app_type] => utility [patent_app_number] => 17/526813 [patent_app_country] => US [patent_app_date] => 2021-11-15 [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] => -14 [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] => 17526813 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/526813
METHOD TO MAXIMIZE ENERGY RECOVERY IN WASTE-TO-ENERGY PROCESSES Nov 14, 2021 Abandoned
Array ( [id] => 17462132 [patent_doc_number] => 20220075437 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-10 [patent_title] => ELECTRONIC APPARATUS AND CONTROL METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 17/526651 [patent_app_country] => US [patent_app_date] => 2021-11-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11571 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17526651 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/526651
Electronic apparatus and control method thereof Nov 14, 2021 Issued
Array ( [id] => 20372274 [patent_doc_number] => 12479696 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Calibration method and system for virtual buttons, elevator and storage medium [patent_app_type] => utility [patent_app_number] => 17/524009 [patent_app_country] => US [patent_app_date] => 2021-11-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 0 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17524009 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/524009
Calibration method and system for virtual buttons, elevator and storage medium Nov 10, 2021 Issued
Array ( [id] => 19044138 [patent_doc_number] => 11933230 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-19 [patent_title] => Modularity of an aircraft turbomachine [patent_app_type] => utility [patent_app_number] => 18/251278 [patent_app_country] => US [patent_app_date] => 2021-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 5633 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 274 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18251278 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/251278
Modularity of an aircraft turbomachine Nov 1, 2021 Issued
Array ( [id] => 18350107 [patent_doc_number] => 20230138218 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-04 [patent_title] => DEWATERING PUMP SUPPORT APPARATUS [patent_app_type] => utility [patent_app_number] => 17/453203 [patent_app_country] => US [patent_app_date] => 2021-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2449 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17453203 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/453203
Dewatering pump support apparatus Nov 1, 2021 Issued
Array ( [id] => 18450346 [patent_doc_number] => 20230191623 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => OPTICAL WAVEGUIDE-TYPE SOFT PHOTOACTUATOR BASED ON OPTICAL MICRO/NANOFIBER [patent_app_type] => utility [patent_app_number] => 17/924696 [patent_app_country] => US [patent_app_date] => 2021-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2604 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [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] => 17924696 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/924696
Optical waveguide-type soft photoactuator based on optical micro/nanofiber Nov 1, 2021 Issued
Array ( [id] => 18333779 [patent_doc_number] => 20230125727 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-27 [patent_title] => BIOLOGICAL ENGINE [patent_app_type] => utility [patent_app_number] => 17/511356 [patent_app_country] => US [patent_app_date] => 2021-10-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1849 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17511356 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/511356
BIOLOGICAL ENGINE Oct 25, 2021 Abandoned
Array ( [id] => 19397557 [patent_doc_number] => 12071910 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-27 [patent_title] => Alpha Stirling engine [patent_app_type] => utility [patent_app_number] => 18/033826 [patent_app_country] => US [patent_app_date] => 2021-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2373 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18033826 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/033826
Alpha Stirling engine Oct 19, 2021 Issued
Array ( [id] => 17627971 [patent_doc_number] => 20220162986 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-26 [patent_title] => Offshore Oscillating Water Column Wave Energy Conversion Device With External Permeable Structure [patent_app_type] => utility [patent_app_number] => 17/504287 [patent_app_country] => US [patent_app_date] => 2021-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1814 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 383 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17504287 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/504287
Offshore oscillating water column wave energy conversion device with external permeable structure Oct 17, 2021 Issued
Array ( [id] => 19368791 [patent_doc_number] => 12060868 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-13 [patent_title] => Thermally-powered polymer fiber tensile actuators and articles including same [patent_app_type] => utility [patent_app_number] => 17/504305 [patent_app_country] => US [patent_app_date] => 2021-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 53 [patent_no_of_words] => 31695 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17504305 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/504305
Thermally-powered polymer fiber tensile actuators and articles including same Oct 17, 2021 Issued
Array ( [id] => 19984604 [patent_doc_number] => 20250122826 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-17 [patent_title] => ROTARY ENGINE [patent_app_type] => utility [patent_app_number] => 18/293411 [patent_app_country] => US [patent_app_date] => 2021-10-15 [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] => 0 [patent_words_short_claim] => 13 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18293411 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/293411
ROTARY ENGINE Oct 14, 2021 Abandoned
Array ( [id] => 17956832 [patent_doc_number] => 11482950 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-10-25 [patent_title] => Light responsive polymer magnetic microrobots [patent_app_type] => utility [patent_app_number] => 17/501944 [patent_app_country] => US [patent_app_date] => 2021-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 6040 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17501944 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/501944
Light responsive polymer magnetic microrobots Oct 13, 2021 Issued
Array ( [id] => 17371060 [patent_doc_number] => 20220026112 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-27 [patent_title] => Method for Thermal Profile Control and Energy Recovery in Geothermal Wells [patent_app_type] => utility [patent_app_number] => 17/499415 [patent_app_country] => US [patent_app_date] => 2021-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4755 [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] => 17499415 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/499415
Energy recovery in geothermal wells Oct 11, 2021 Issued
Array ( [id] => 19226136 [patent_doc_number] => 12005769 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-11 [patent_title] => Hydraulic arrangement and electrically operable, multigear axle drive train [patent_app_type] => utility [patent_app_number] => 18/266858 [patent_app_country] => US [patent_app_date] => 2021-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5013 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18266858 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/266858
Hydraulic arrangement and electrically operable, multigear axle drive train Oct 7, 2021 Issued
Array ( [id] => 19537292 [patent_doc_number] => 12129836 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-29 [patent_title] => Geothermal well designs and control thereof for extraction of subsurface geothermal power [patent_app_type] => utility [patent_app_number] => 18/247767 [patent_app_country] => US [patent_app_date] => 2021-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 8332 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18247767 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/247767
Geothermal well designs and control thereof for extraction of subsurface geothermal power Oct 5, 2021 Issued
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