Search

Leonard Chang

Supervisory Patent Examiner (ID: 1206, Phone: (571)270-3691 , Office: P/4166 )

Most Active Art Unit
2812
Art Unit(s)
2898, 2812, 4121, 4100
Total Applications
320
Issued Applications
197
Pending Applications
1
Abandoned Applications
127

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20478790 [patent_doc_number] => 12527245 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-20 [patent_title] => Automated image-based receiving vehicle boundary detection and control [patent_app_type] => utility [patent_app_number] => 18/065881 [patent_app_country] => US [patent_app_date] => 2022-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4695 [patent_no_of_claims] => 18 [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] => 18065881 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/065881
Automated image-based receiving vehicle boundary detection and control Dec 13, 2022 Issued
Array ( [id] => 20226803 [patent_doc_number] => 12415443 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-16 [patent_title] => Control method and apparatus for vehicle in baby mode [patent_app_type] => utility [patent_app_number] => 18/074927 [patent_app_country] => US [patent_app_date] => 2022-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 0 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18074927 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/074927
Control method and apparatus for vehicle in baby mode Dec 4, 2022 Issued
Array ( [id] => 18537021 [patent_doc_number] => 20230242113 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => VEHICLE CONTROL DEVICE, STORAGE MEDIUM FOR STORING COMPUTER PROGRAM FOR VEHICLE CONTROL, AND METHOD FOR CONTROLLING VEHICLE [patent_app_type] => utility [patent_app_number] => 18/074235 [patent_app_country] => US [patent_app_date] => 2022-12-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7773 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18074235 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/074235
Vehicle control device, storage medium for storing computer program for vehicle control, and method for controlling vehicle Dec 1, 2022 Issued
Array ( [id] => 19112225 [patent_doc_number] => 20240123975 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => GUIDED GENERATION OF TRAJECTORIES FOR REMOTE VEHICLE ASSISTANCE [patent_app_type] => utility [patent_app_number] => 18/071360 [patent_app_country] => US [patent_app_date] => 2022-11-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13537 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18071360 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/071360
GUIDED GENERATION OF TRAJECTORIES FOR REMOTE VEHICLE ASSISTANCE Nov 28, 2022 Pending
Array ( [id] => 20211942 [patent_doc_number] => 12408572 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-09 [patent_title] => System and method for detecting disk gang plugging on a tillage implement [patent_app_type] => utility [patent_app_number] => 17/991303 [patent_app_country] => US [patent_app_date] => 2022-11-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 1139 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17991303 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/991303
System and method for detecting disk gang plugging on a tillage implement Nov 20, 2022 Issued
Array ( [id] => 18365351 [patent_doc_number] => 20230146942 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => MACHINE CONTROL SYSTEM AND METHOD WITH ROLL-UP REPORTING [patent_app_type] => utility [patent_app_number] => 17/983191 [patent_app_country] => US [patent_app_date] => 2022-11-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1876 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17983191 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/983191
Machine control system and method with roll-up reporting Nov 7, 2022 Issued
Array ( [id] => 19832905 [patent_doc_number] => 20250084691 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => DOOR OPENING/CLOSING CONTROL DEVICE [patent_app_type] => utility [patent_app_number] => 18/727258 [patent_app_country] => US [patent_app_date] => 2022-11-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4191 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [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] => 18727258 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/727258
DOOR OPENING/CLOSING CONTROL DEVICE Nov 6, 2022 Pending
Array ( [id] => 19634120 [patent_doc_number] => 20240412569 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => DEVICE FOR ACCESSING DATA SENT BY A DONGLE CONNECTED TO A VEHICLE AND METHOD FOR REDUCING THE POWER CONSUMPTION OF SUCH DEVICE [patent_app_type] => utility [patent_app_number] => 18/700455 [patent_app_country] => US [patent_app_date] => 2022-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4568 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18700455 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/700455
DEVICE FOR ACCESSING DATA SENT BY A DONGLE CONNECTED TO A VEHICLE AND METHOD FOR REDUCING THE POWER CONSUMPTION OF SUCH DEVICE Oct 9, 2022 Pending
Array ( [id] => 19646046 [patent_doc_number] => 20240420566 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => RESOURCE ALLOCATION USING VEHICLE MANEUVER PREDICTION [patent_app_type] => utility [patent_app_number] => 18/700107 [patent_app_country] => US [patent_app_date] => 2022-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17701 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18700107 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/700107
RESOURCE ALLOCATION USING VEHICLE MANEUVER PREDICTION Oct 6, 2022 Pending
Array ( [id] => 20211956 [patent_doc_number] => 12408586 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-09 [patent_title] => Electric work machine [patent_app_type] => utility [patent_app_number] => 17/960530 [patent_app_country] => US [patent_app_date] => 2022-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 5760 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 260 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17960530 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/960530
Electric work machine Oct 4, 2022 Issued
Array ( [id] => 19990413 [patent_doc_number] => 20250128635 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-24 [patent_title] => FORECASTING CHARGING TIME OF ELECTRIC VEHICLES [patent_app_type] => utility [patent_app_number] => 18/685458 [patent_app_country] => US [patent_app_date] => 2022-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1303 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18685458 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/685458
FORECASTING CHARGING TIME OF ELECTRIC VEHICLES Sep 27, 2022 Pending
Array ( [id] => 18284051 [patent_doc_number] => 20230099523 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => AGRICULTURAL PRODUCTION MACHINE WITH CHARACTERISTIC DIAGRAM CONTROL [patent_app_type] => utility [patent_app_number] => 17/953794 [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] => 10405 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17953794 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/953794
AGRICULTURAL PRODUCTION MACHINE WITH CHARACTERISTIC DIAGRAM CONTROL Sep 26, 2022 Pending
Array ( [id] => 18092715 [patent_doc_number] => 20220411056 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-29 [patent_title] => UNMANNED AERIAL VEHICLE AND METHOD OF TARGETED PACKAGE DELIVERY [patent_app_type] => utility [patent_app_number] => 17/822662 [patent_app_country] => US [patent_app_date] => 2022-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8285 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17822662 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/822662
Unmanned aerial vehicle and method of targeted package delivery Aug 25, 2022 Issued
Array ( [id] => 19708819 [patent_doc_number] => 20250018961 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-16 [patent_title] => Vehicle Control Device, Vehicle Control Method, and Vehicle Control System [patent_app_type] => utility [patent_app_number] => 18/687590 [patent_app_country] => US [patent_app_date] => 2022-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7074 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 18687590 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/687590
Vehicle Control Device, Vehicle Control Method, and Vehicle Control System Jul 11, 2022 Pending
Array ( [id] => 17854777 [patent_doc_number] => 20220284820 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-08 [patent_title] => METHOD AND SYSTEM FOR MONITORING UNMANNED AERIAL VEHICLE [patent_app_type] => utility [patent_app_number] => 17/751442 [patent_app_country] => US [patent_app_date] => 2022-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9376 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17751442 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/751442
METHOD AND SYSTEM FOR MONITORING UNMANNED AERIAL VEHICLE May 22, 2022 Pending
Array ( [id] => 20088350 [patent_doc_number] => 20250218286 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-03 [patent_title] => TRIP TIME MEASUREMENT DEVICE, TRAFFIC INFORMATION PROVISION SERVER, TRIP TIME MEASUREMENT METHOD, AND PROGRAM RECORDING MEDIUM [patent_app_type] => utility [patent_app_number] => 18/852657 [patent_app_country] => US [patent_app_date] => 2022-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2356 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 18852657 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/852657
TRIP TIME MEASUREMENT DEVICE, TRAFFIC INFORMATION PROVISION SERVER, TRIP TIME MEASUREMENT METHOD, AND PROGRAM RECORDING MEDIUM Apr 10, 2022 Pending
Array ( [id] => 19861763 [patent_doc_number] => 20250100549 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => ONBOARD ELECTRONIC CONTROL DEVICE [patent_app_type] => utility [patent_app_number] => 18/846836 [patent_app_country] => US [patent_app_date] => 2022-04-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5757 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [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] => 18846836 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/846836
ONBOARD ELECTRONIC CONTROL DEVICE Apr 5, 2022 Pending
Array ( [id] => 18651269 [patent_doc_number] => 20230297105 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => NETWORKED DRONE [patent_app_type] => utility [patent_app_number] => 17/698941 [patent_app_country] => US [patent_app_date] => 2022-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2672 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17698941 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/698941
NETWORKED DRONE Mar 17, 2022 Abandoned
Array ( [id] => 18615380 [patent_doc_number] => 20230282117 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => ANOMALY DETERMINATION IN GEOSPATIAL DATA [patent_app_type] => utility [patent_app_number] => 17/653822 [patent_app_country] => US [patent_app_date] => 2022-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9020 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17653822 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/653822
Anomaly determination in geospatial data Mar 6, 2022 Issued
Array ( [id] => 19141811 [patent_doc_number] => 20240140629 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => AUTONOMOUS VEHICLE DELIVERY SYSTEM [patent_app_type] => utility [patent_app_number] => 18/278285 [patent_app_country] => US [patent_app_date] => 2022-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 26404 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18278285 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/278285
AUTONOMOUS VEHICLE DELIVERY SYSTEM Feb 22, 2022 Pending
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