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] => 19299438 [patent_doc_number] => 20240228006 [patent_country] => US [patent_kind] => A9 [patent_issue_date] => 2024-07-11 [patent_title] => MARINE PROPULSION SYSTEM AND MARINE VESSEL [patent_app_type] => utility [patent_app_number] => 18/481300 [patent_app_country] => US [patent_app_date] => 2023-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19953 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18481300 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/481300
MARINE PROPULSION SYSTEM AND MARINE VESSEL Oct 3, 2023 Pending
Array ( [id] => 19110359 [patent_doc_number] => 20240122109 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => COMPUTER VISION SYSTEMS AND METHODS FOR AN AGRICULTURAL HEADER [patent_app_type] => utility [patent_app_number] => 18/374550 [patent_app_country] => US [patent_app_date] => 2023-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8133 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18374550 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/374550
COMPUTER VISION SYSTEMS AND METHODS FOR AN AGRICULTURAL HEADER Sep 27, 2023 Pending
Array ( [id] => 19859797 [patent_doc_number] => 20250098583 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-27 [patent_title] => APPARATUS AND METHOD FOR MANAGING SETTINGS NOT ADJUSTED BY AUTOMATION [patent_app_type] => utility [patent_app_number] => 18/473626 [patent_app_country] => US [patent_app_date] => 2023-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7961 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18473626 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/473626
APPARATUS AND METHOD FOR MANAGING SETTINGS NOT ADJUSTED BY AUTOMATION Sep 24, 2023 Pending
Array ( [id] => 18882430 [patent_doc_number] => 20240005799 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => DRONE COMMUNICATION SYSTEM AND OPERATION METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/468743 [patent_app_country] => US [patent_app_date] => 2023-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5011 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18468743 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/468743
Drone communication system and operation method thereof Sep 17, 2023 Issued
Array ( [id] => 19038642 [patent_doc_number] => 20240088457 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-14 [patent_title] => BATTERY MANAGEMENT METHOD, STORAGE MEDIUM, STORAGE CONTROLLER, AND MOVABLE BODY [patent_app_type] => utility [patent_app_number] => 18/465327 [patent_app_country] => US [patent_app_date] => 2023-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15273 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18465327 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/465327
BATTERY MANAGEMENT METHOD, STORAGE MEDIUM, STORAGE CONTROLLER, AND MOVABLE BODY Sep 11, 2023 Pending
Array ( [id] => 19814122 [patent_doc_number] => 20250072329 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => WINDROW MATERIAL THROUGHPUT ESTIMATION SYSTEM [patent_app_type] => utility [patent_app_number] => 18/457060 [patent_app_country] => US [patent_app_date] => 2023-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10580 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18457060 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/457060
WINDROW MATERIAL THROUGHPUT ESTIMATION SYSTEM Aug 27, 2023 Pending
Array ( [id] => 19785091 [patent_doc_number] => 20250058770 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => SELECTIVELY VISUALIZING SAFETY MARGINS [patent_app_type] => utility [patent_app_number] => 18/451749 [patent_app_country] => US [patent_app_date] => 2023-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23642 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18451749 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/451749
SELECTIVELY VISUALIZING SAFETY MARGINS Aug 16, 2023 Pending
Array ( [id] => 19770678 [patent_doc_number] => 20250052104 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => AUTOMATIC VEHICLE CLOSURE OPERATION WITH 3D ENVIRONMENT MAPPING [patent_app_type] => utility [patent_app_number] => 18/446940 [patent_app_country] => US [patent_app_date] => 2023-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7543 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [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] => 18446940 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/446940
AUTOMATIC VEHICLE CLOSURE OPERATION WITH 3D ENVIRONMENT MAPPING Aug 8, 2023 Pending
Array ( [id] => 20263676 [patent_doc_number] => 12434647 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-07 [patent_title] => Adjustment of environment of transports [patent_app_type] => utility [patent_app_number] => 18/230156 [patent_app_country] => US [patent_app_date] => 2023-08-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 5850 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18230156 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/230156
Adjustment of environment of transports Aug 2, 2023 Issued
Array ( [id] => 19189576 [patent_doc_number] => 20240168489 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-23 [patent_title] => Positioning of Unmanned Aerial Vehicles using Millimeter-Wave Beam Infrastructure [patent_app_type] => utility [patent_app_number] => 18/362661 [patent_app_country] => US [patent_app_date] => 2023-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6919 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 23 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18362661 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/362661
Positioning of Unmanned Aerial Vehicles using Millimeter-Wave Beam Infrastructure Jul 30, 2023 Pending
Array ( [id] => 19003042 [patent_doc_number] => 20240067113 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => MOTOR VEHICLE AND METHOD FOR OPERATING A MOTOR VEHICLE [patent_app_type] => utility [patent_app_number] => 18/354350 [patent_app_country] => US [patent_app_date] => 2023-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4104 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 18354350 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/354350
Motor vehicle and method for operating a motor vehicle Jul 17, 2023 Issued
Array ( [id] => 18905606 [patent_doc_number] => 20240021091 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => METHOD, SYSTEM AND COMPONENTS PROVIDING A SECURE INTERNET CONNECTED AERIAL NETWORK FOR CONTINUOUS DRONE OPERATION AND SURVEILLANCE [patent_app_type] => utility [patent_app_number] => 18/354099 [patent_app_country] => US [patent_app_date] => 2023-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6840 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18354099 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/354099
METHOD, SYSTEM AND COMPONENTS PROVIDING A SECURE INTERNET CONNECTED AERIAL NETWORK FOR CONTINUOUS DRONE OPERATION AND SURVEILLANCE Jul 17, 2023 Pending
Array ( [id] => 19019895 [patent_doc_number] => 20240076066 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-07 [patent_title] => FIXED-WING UNMANNED AERIAL VEHICLE CAPABLE OF HIGH ANGLE-OF-ATTACK MANEUVERING [patent_app_type] => utility [patent_app_number] => 18/218646 [patent_app_country] => US [patent_app_date] => 2023-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15663 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18218646 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/218646
FIXED-WING UNMANNED AERIAL VEHICLE CAPABLE OF HIGH ANGLE-OF-ATTACK MANEUVERING Jul 5, 2023 Pending
Array ( [id] => 18957124 [patent_doc_number] => 20240045451 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => DRONE FLIGHT CONTROL DEVICE, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM [patent_app_type] => utility [patent_app_number] => 18/348023 [patent_app_country] => US [patent_app_date] => 2023-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5739 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18348023 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/348023
DRONE FLIGHT CONTROL DEVICE, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM Jul 5, 2023 Pending
Array ( [id] => 20518363 [patent_doc_number] => 20260042467 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-12 [patent_title] => METHOD FOR PREDICTING A MOVEMENT OF A ROAD USER [patent_app_type] => utility [patent_app_number] => 19/099240 [patent_app_country] => US [patent_app_date] => 2023-06-27 [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] => -4 [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] => 19099240 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/099240
METHOD FOR PREDICTING A MOVEMENT OF A ROAD USER Jun 26, 2023 Pending
Array ( [id] => 19661631 [patent_doc_number] => 20240428696 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => CORRECTING ERRONEOUS UAV POSITIONING INFORMATION USING SEMANTICALLY SEGMENTED IMAGES [patent_app_type] => utility [patent_app_number] => 18/341660 [patent_app_country] => US [patent_app_date] => 2023-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8723 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18341660 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/341660
CORRECTING ERRONEOUS UAV POSITIONING INFORMATION USING SEMANTICALLY SEGMENTED IMAGES Jun 25, 2023 Pending
Array ( [id] => 19660261 [patent_doc_number] => 20240427326 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => SHARING UAV FLIGHT DATA WITH REMOTE OBSERVERS [patent_app_type] => utility [patent_app_number] => 18/213377 [patent_app_country] => US [patent_app_date] => 2023-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4995 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18213377 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/213377
SHARING UAV FLIGHT DATA WITH REMOTE OBSERVERS Jun 22, 2023 Pending
Array ( [id] => 18830383 [patent_doc_number] => 20230398907 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => METHOD FOR CONTROLLING A POWER ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/334804 [patent_app_country] => US [patent_app_date] => 2023-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6085 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18334804 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/334804
METHOD FOR CONTROLLING A POWER ASSEMBLY Jun 13, 2023 Pending
Array ( [id] => 18832337 [patent_doc_number] => 20230400864 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => UAV Autoloader Systems and Methods [patent_app_type] => utility [patent_app_number] => 18/208167 [patent_app_country] => US [patent_app_date] => 2023-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 26888 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18208167 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/208167
UAV autoloader systems and methods Jun 8, 2023 Issued
Array ( [id] => 18677479 [patent_doc_number] => 20230315125 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => SYSTEMS AND METHODS FOR IMPOSING PHYSICAL ACTIONS, BY ENDPOINTS, BASED ON ACTIVITIES BY USERS [patent_app_type] => utility [patent_app_number] => 18/206508 [patent_app_country] => US [patent_app_date] => 2023-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10765 [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] => 18206508 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/206508
Systems and methods for imposing physical actions, by endpoints, based on activities by users Jun 5, 2023 Issued
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