Search

Len Tran

Supervisory Patent Examiner (ID: 13971, Phone: (571)272-1184 , Office: P/3744 )

Most Active Art Unit
1725
Art Unit(s)
3752, 3744, 3763, 1725, 1722
Total Applications
876
Issued Applications
534
Pending Applications
80
Abandoned Applications
263

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19048399 [patent_doc_number] => 20240090368 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => Method for Spreading Broadcasting Material Using an Agricultural Spreader [patent_app_type] => utility [patent_app_number] => 18/277355 [patent_app_country] => US [patent_app_date] => 2022-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5856 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 18277355 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/277355
Method for Spreading Broadcasting Material Using an Agricultural Spreader Feb 8, 2022 Pending
Array ( [id] => 20787778 [patent_doc_number] => 12661676 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-06-23 [patent_title] => Cleaning nozzle for cryogenic fluid fueling receptacle [patent_app_type] => utility [patent_app_number] => 18/251344 [patent_app_country] => US [patent_app_date] => 2021-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 41 [patent_figures_cnt] => 41 [patent_no_of_words] => 16656 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 289 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18251344 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/251344
Cleaning nozzle for cryogenic fluid fueling receptacle Nov 16, 2021 Issued
Array ( [id] => 20534864 [patent_doc_number] => 12551916 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-17 [patent_title] => Cleaning receptacle for cryogenic fluid fueling nozzle [patent_app_type] => utility [patent_app_number] => 18/251329 [patent_app_country] => US [patent_app_date] => 2021-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 41 [patent_figures_cnt] => 41 [patent_no_of_words] => 16654 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18251329 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/251329
Cleaning receptacle for cryogenic fluid fueling nozzle Nov 16, 2021 Issued
Array ( [id] => 20761568 [patent_doc_number] => 20260158542 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-06-11 [patent_title] => MOLD FOR MANUFACTURING AN ENGINE CASTING PART FOR A VEHICLE FROM VERMICULAR CAST IRON ALLOY, PROCESS FOR MANUFACTURING AN ENGINE CASTING PART FOR A VEHICLE FROM VERMICULAR CAST IRON ALLOY, AND PROCESS FOR ASSEMBLING A VEHICLE ENGINE BY THE COMBINATION OF PARTS MADE FROM VERMICULAR CAST IRON ALLOY AND PARTS MADE FROM COMPOSITES [patent_app_type] => utility [patent_app_number] => 18/707758 [patent_app_country] => US [patent_app_date] => 2021-11-08 [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] => -15 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18707758 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/707758
MOLD FOR MANUFACTURING AN ENGINE CASTING PART FOR A VEHICLE FROM VERMICULAR CAST IRON ALLOY, PROCESS FOR MANUFACTURING AN ENGINE CASTING PART FOR A VEHICLE FROM VERMICULAR CAST IRON ALLOY, AND PROCESS FOR ASSEMBLING A VEHICLE ENGINE BY THE COMBINATION OF PARTS MADE FROM VERMICULAR CAST IRON ALLOY AND PARTS MADE FROM COMPOSITES Nov 7, 2021 Pending
Array ( [id] => 18785204 [patent_doc_number] => 20230372955 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-23 [patent_title] => PAINT-SPRAYING DEVICE FOR PRODUCING A PAINT SPRAY JET AND METHOD FOR VENTING A PAINT CONTAINER [patent_app_type] => utility [patent_app_number] => 18/247925 [patent_app_country] => US [patent_app_date] => 2021-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7913 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18247925 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/247925
Paint-spraying device for producing a paint spray jet and method for venting a paint container Oct 7, 2021 Issued
Array ( [id] => 18816450 [patent_doc_number] => 20230390790 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-07 [patent_title] => ELECTROSTATIC SPRAY NOZZLE FILM AND ELECTROSTATIC SPRAY SYSTEM INCLUDING SAME [patent_app_type] => utility [patent_app_number] => 18/248950 [patent_app_country] => US [patent_app_date] => 2021-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7016 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18248950 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/248950
ELECTROSTATIC SPRAY NOZZLE FILM AND ELECTROSTATIC SPRAY SYSTEM INCLUDING SAME Oct 7, 2021 Abandoned
Array ( [id] => 18710180 [patent_doc_number] => 20230332804 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => APPARATUS AND METHOD FOR THERMAL FOUNDATION ELEMENTS [patent_app_type] => utility [patent_app_number] => 18/025787 [patent_app_country] => US [patent_app_date] => 2021-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7808 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 43 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18025787 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/025787
APPARATUS AND METHOD FOR THERMAL FOUNDATION ELEMENTS Sep 13, 2021 Pending
Array ( [id] => 17991077 [patent_doc_number] => 20220357114 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-10 [patent_title] => HIGH CONDUCTANCE FIN [patent_app_type] => utility [patent_app_number] => 17/313425 [patent_app_country] => US [patent_app_date] => 2021-05-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5337 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17313425 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/313425
HIGH CONDUCTANCE FIN May 5, 2021 Abandoned
Array ( [id] => 16992940 [patent_doc_number] => 20210231360 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-07-29 [patent_title] => REFRIGERATOR [patent_app_type] => utility [patent_app_number] => 17/147372 [patent_app_country] => US [patent_app_date] => 2021-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16696 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17147372 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/147372
REFRIGERATOR Jan 11, 2021 Abandoned
Array ( [id] => 16713007 [patent_doc_number] => 20210080154 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-18 [patent_title] => Transport Refrigeration Unit with Vented Cryogenic Cooling [patent_app_type] => utility [patent_app_number] => 17/097004 [patent_app_country] => US [patent_app_date] => 2020-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3394 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17097004 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/097004
Transport Refrigeration Unit with Vented Cryogenic Cooling Nov 12, 2020 Abandoned
Array ( [id] => 16847915 [patent_doc_number] => 20210148660 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-20 [patent_title] => INTERCOOLER ASSEMBLY [patent_app_type] => utility [patent_app_number] => 16/860620 [patent_app_country] => US [patent_app_date] => 2020-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4986 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 16860620 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/860620
INTERCOOLER ASSEMBLY Apr 27, 2020 Abandoned
Array ( [id] => 16388644 [patent_doc_number] => 20200329585 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-15 [patent_title] => COOLING SYSTEM, IN PARTICULAR FOR ELECTRONICS CABINETS, AND ELECTRONICS CABINET WITH A COOLING SYSTEM [patent_app_type] => utility [patent_app_number] => 16/842876 [patent_app_country] => US [patent_app_date] => 2020-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4910 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16842876 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/842876
COOLING SYSTEM, IN PARTICULAR FOR ELECTRONICS CABINETS, AND ELECTRONICS CABINET WITH A COOLING SYSTEM Apr 7, 2020 Abandoned
Array ( [id] => 17068329 [patent_doc_number] => 20210270544 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-02 [patent_title] => DIRECTED ENERGY DEPOSITION OF HEAT EXCHANGE FINS [patent_app_type] => utility [patent_app_number] => 16/805977 [patent_app_country] => US [patent_app_date] => 2020-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1626 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 16805977 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/805977
DIRECTED ENERGY DEPOSITION OF HEAT EXCHANGE FINS Mar 1, 2020 Abandoned
Array ( [id] => 17445048 [patent_doc_number] => 20220065553 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-03 [patent_title] => METHOD FOR PERFORMING CYCLICAL ENERGY STORAGE AND DEVICE THEREFOR [patent_app_type] => utility [patent_app_number] => 17/297376 [patent_app_country] => US [patent_app_date] => 2019-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8237 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17297376 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/297376
METHOD FOR PERFORMING CYCLICAL ENERGY STORAGE AND DEVICE THEREFOR Dec 3, 2019 Abandoned
Array ( [id] => 16569950 [patent_doc_number] => 20210008956 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-14 [patent_title] => VEHICLE TEMPERATURE CONTROL SYSTEM AND METHOD OF CONTROLLING THE SAME [patent_app_type] => utility [patent_app_number] => 16/690828 [patent_app_country] => US [patent_app_date] => 2019-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6408 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [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] => 16690828 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/690828
VEHICLE TEMPERATURE CONTROL SYSTEM AND METHOD OF CONTROLLING THE SAME Nov 20, 2019 Abandoned
Array ( [id] => 15022301 [patent_doc_number] => 20190322155 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-10-24 [patent_title] => HEATER MODULE FOR HEATING COOLING WATER [patent_app_type] => utility [patent_app_number] => 16/389138 [patent_app_country] => US [patent_app_date] => 2019-04-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6976 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16389138 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/389138
HEATER MODULE FOR HEATING COOLING WATER Apr 18, 2019 Abandoned
Array ( [id] => 14717127 [patent_doc_number] => 20190249627 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-15 [patent_title] => HEAT EXCHANGE APPARATUS [patent_app_type] => utility [patent_app_number] => 16/239584 [patent_app_country] => US [patent_app_date] => 2019-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5845 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16239584 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/239584
HEAT EXCHANGE APPARATUS Jan 3, 2019 Abandoned
Array ( [id] => 15741957 [patent_doc_number] => 20200109866 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-09 [patent_title] => Hotel-Type Non-outdoor-unit Refrigeration System [patent_app_type] => utility [patent_app_number] => 16/153736 [patent_app_country] => US [patent_app_date] => 2018-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1680 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16153736 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/153736
Hotel-Type Non-outdoor-unit Refrigeration System Oct 5, 2018 Abandoned
Array ( [id] => 14344777 [patent_doc_number] => 20190154361 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-23 [patent_title] => HEAT EXCHANGE DEVICE [patent_app_type] => utility [patent_app_number] => 16/144382 [patent_app_country] => US [patent_app_date] => 2018-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4736 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16144382 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/144382
HEAT EXCHANGE DEVICE Sep 26, 2018 Abandoned
Array ( [id] => 13927697 [patent_doc_number] => 20190047364 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-02-14 [patent_title] => COOLING DEVICE FOR VEHICLE AND CONTROL METHOD FOR VEHICLE [patent_app_type] => utility [patent_app_number] => 16/041097 [patent_app_country] => US [patent_app_date] => 2018-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20512 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16041097 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/041097
COOLING DEVICE FOR VEHICLE AND CONTROL METHOD FOR VEHICLE Jul 19, 2018 Abandoned
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