
Len Tran
Supervisory Patent Examiner (ID: 17268, Phone: (571)272-1184 , Office: P/3744 )
| Most Active Art Unit | 1725 |
| Art Unit(s) | 3752, 1725, 3763, 1722, 3744 |
| Total Applications | 874 |
| Issued Applications | 534 |
| Pending Applications | 79 |
| Abandoned Applications | 262 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 19844253
[patent_doc_number] => 20250089604
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-03-20
[patent_title] => APPARATUS FOR CONTROLLING APPLICATION OF AGRICULTURAL CHEMICALS
[patent_app_type] => utility
[patent_app_number] => 18/370175
[patent_app_country] => US
[patent_app_date] => 2023-09-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4818
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 121
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18370175
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/370175 | APPARATUS FOR CONTROLLING APPLICATION OF AGRICULTURAL CHEMICALS | Sep 18, 2023 | Pending |
Array
(
[id] => 20413214
[patent_doc_number] => 12496477
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-12-16
[patent_title] => Fire suppressing gas generators, systems, and arrangements
[patent_app_type] => utility
[patent_app_number] => 18/230497
[patent_app_country] => US
[patent_app_date] => 2023-08-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 11
[patent_figures_cnt] => 15
[patent_no_of_words] => 6061
[patent_no_of_claims] => 36
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 196
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18230497
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/230497 | Fire suppressing gas generators, systems, and arrangements | Aug 3, 2023 | Issued |
Array
(
[id] => 19753248
[patent_doc_number] => 20250041813
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-02-06
[patent_title] => PLANTING SYSTEM HAVING AGITATOR
[patent_app_type] => utility
[patent_app_number] => 18/230121
[patent_app_country] => US
[patent_app_date] => 2023-08-03
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 7043
[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] => 18230121
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/230121 | PLANTING SYSTEM HAVING AGITATOR | Aug 2, 2023 | Pending |
Array
(
[id] => 20367745
[patent_doc_number] => 20250357557
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-11-20
[patent_title] => Battery Fire Prediction Method and Battery System Providing the Same
[patent_app_type] => utility
[patent_app_number] => 18/876539
[patent_app_country] => US
[patent_app_date] => 2023-07-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 1146
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -12
[patent_words_short_claim] => 112
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18876539
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/876539 | Battery Fire Prediction Method and Battery System Providing the Same | Jul 10, 2023 | Pending |
Array
(
[id] => 20700552
[patent_doc_number] => 12623244
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2026-05-12
[patent_title] => Flameless energizer for treatment agent
[patent_app_type] => utility
[patent_app_number] => 18/327857
[patent_app_country] => US
[patent_app_date] => 2023-06-01
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 17
[patent_figures_cnt] => 30
[patent_no_of_words] => 6653
[patent_no_of_claims] => 19
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 131
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18327857
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/327857 | Flameless energizer for treatment agent | May 31, 2023 | Issued |
Array
(
[id] => 19600044
[patent_doc_number] => 20240390924
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-11-28
[patent_title] => DROPLET JET NOZZLE DESIGN
[patent_app_type] => utility
[patent_app_number] => 18/322484
[patent_app_country] => US
[patent_app_date] => 2023-05-23
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6929
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 124
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18322484
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/322484 | DROPLET JET NOZZLE DESIGN | May 22, 2023 | Pending |
Array
(
[id] => 18860768
[patent_doc_number] => 20230415203
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-12-28
[patent_title] => WASHING MACHINE FOR WASHING OBJECTS FOR ANIMAL STALLING
[patent_app_type] => utility
[patent_app_number] => 18/321440
[patent_app_country] => US
[patent_app_date] => 2023-05-22
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4708
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -13
[patent_words_short_claim] => 137
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18321440
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/321440 | WASHING MACHINE FOR WASHING OBJECTS FOR ANIMAL STALLING | May 21, 2023 | Pending |
Array
(
[id] => 18776360
[patent_doc_number] => 20230371198
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-11-16
[patent_title] => COOLING DEVICE
[patent_app_type] => utility
[patent_app_number] => 18/141057
[patent_app_country] => US
[patent_app_date] => 2023-04-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4935
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -7
[patent_words_short_claim] => 155
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18141057
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/141057 | COOLING DEVICE | Apr 27, 2023 | Abandoned |
Array
(
[id] => 20247235
[patent_doc_number] => 20250296104
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-09-25
[patent_title] => TRIGGER SPRAYER
[patent_app_type] => utility
[patent_app_number] => 18/860887
[patent_app_country] => US
[patent_app_date] => 2023-04-25
[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] => 204
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18860887
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/860887 | TRIGGER SPRAYER | Apr 24, 2023 | Pending |
Array
(
[id] => 19249889
[patent_doc_number] => 20240200877
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-06-20
[patent_title] => HEAT EXCHANGER PLATE, HEAT EXCHANGER PLATE LAMINATE, AND MICROCHANNEL HEAT EXCHANGER
[patent_app_type] => utility
[patent_app_number] => 18/554912
[patent_app_country] => US
[patent_app_date] => 2022-12-21
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 12659
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[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] => 18554912
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/554912 | HEAT EXCHANGER PLATE, HEAT EXCHANGER PLATE LAMINATE, AND MICROCHANNEL HEAT EXCHANGER | Dec 20, 2022 | Abandoned |
Array
(
[id] => 19799081
[patent_doc_number] => 20250065006
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-02-27
[patent_title] => DEVICE FOR EVAPORATING VOLATILE SUBSTANCES
[patent_app_type] => utility
[patent_app_number] => 18/719288
[patent_app_country] => US
[patent_app_date] => 2022-12-13
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 1769
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -10
[patent_words_short_claim] => 86
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18719288
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/719288 | DEVICE FOR EVAPORATING VOLATILE SUBSTANCES | Dec 12, 2022 | Pending |
Array
(
[id] => 19599838
[patent_doc_number] => 20240390718
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-11-28
[patent_title] => DEVICES, SYSTEMS, AND METHODS FOR APPLICATION OF FIRE RETARDANT
[patent_app_type] => utility
[patent_app_number] => 18/696231
[patent_app_country] => US
[patent_app_date] => 2022-09-27
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 11312
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -20
[patent_words_short_claim] => 88
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18696231
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/696231 | DEVICES, SYSTEMS, AND METHODS FOR APPLICATION OF FIRE RETARDANT | Sep 26, 2022 | Pending |
Array
(
[id] => 19480603
[patent_doc_number] => 20240328645
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-10-03
[patent_title] => CEILING ELEMENT WITH AIR OUTLET BOX
[patent_app_type] => utility
[patent_app_number] => 18/579700
[patent_app_country] => US
[patent_app_date] => 2022-09-06
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4279
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -15
[patent_words_short_claim] => 154
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18579700
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/579700 | CEILING ELEMENT WITH AIR OUTLET BOX | Sep 5, 2022 | Pending |
Array
(
[id] => 19529287
[patent_doc_number] => 20240353189
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-10-24
[patent_title] => Air cooled heat exchanger
[patent_app_type] => utility
[patent_app_number] => 18/685507
[patent_app_country] => US
[patent_app_date] => 2022-08-23
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5127
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -12
[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] => 18685507
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/685507 | Air cooled heat exchanger | Aug 22, 2022 | Pending |
Array
(
[id] => 19615632
[patent_doc_number] => 20240401312
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-12-05
[patent_title] => DRINKING FOUNTAIN AND FOUNTAIN ARM THEREOF
[patent_app_type] => utility
[patent_app_number] => 18/686373
[patent_app_country] => US
[patent_app_date] => 2022-08-22
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 2246
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -6
[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] => 18686373
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/686373 | DRINKING FOUNTAIN AND FOUNTAIN ARM THEREOF | Aug 21, 2022 | Abandoned |
Array
(
[id] => 19863462
[patent_doc_number] => 20250102248
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-03-27
[patent_title] => SELF-DEFROSTING HEAT EXCHANGER AND METHOD OF USING SAME
[patent_app_type] => utility
[patent_app_number] => 18/290978
[patent_app_country] => US
[patent_app_date] => 2022-06-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5046
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[patent_words_short_claim] => 156
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18290978
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/290978 | SELF-DEFROSTING HEAT EXCHANGER AND METHOD OF USING SAME | Jun 7, 2022 | Pending |
Array
(
[id] => 19431786
[patent_doc_number] => 20240300284
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-09-12
[patent_title] => SYSTEM AND METHOD FOR DYNAMIC FLUID HEATING IN ELECTRIC VEHICLES
[patent_app_type] => utility
[patent_app_number] => 18/575131
[patent_app_country] => US
[patent_app_date] => 2022-04-08
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 9744
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -20
[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] => 18575131
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/575131 | SYSTEM AND METHOD FOR DYNAMIC FLUID HEATING IN ELECTRIC VEHICLES | Apr 7, 2022 | Pending |
Array
(
[id] => 19215437
[patent_doc_number] => 20240180141
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-06-06
[patent_title] => Method for Spreading Spraying Liquid onto Arable Agricultural Land
[patent_app_type] => utility
[patent_app_number] => 18/285942
[patent_app_country] => US
[patent_app_date] => 2022-03-25
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6114
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -6
[patent_words_short_claim] => 155
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18285942
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/285942 | Method for Spreading Spraying Liquid onto Arable Agricultural Land | Mar 24, 2022 | Pending |
Array
(
[id] => 19570848
[patent_doc_number] => 20240375140
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-11-14
[patent_title] => SPRAY GUN CAPABLE OF PREVENTING SPATTERING
[patent_app_type] => utility
[patent_app_number] => 18/689134
[patent_app_country] => US
[patent_app_date] => 2022-02-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 7424
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -19
[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] => 18689134
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/689134 | SPRAY GUN CAPABLE OF PREVENTING SPATTERING | Feb 10, 2022 | Pending |
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 |