Search

Leonard Chang

Supervisory Patent Examiner (ID: 254, Phone: (571)270-3691 , Office: P/4166 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20298934 [patent_doc_number] => 20250324177 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => PHOTODETECTION DEVICE [patent_app_type] => utility [patent_app_number] => 18/865995 [patent_app_country] => US [patent_app_date] => 2022-07-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18308 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18865995 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/865995
PHOTODETECTION DEVICE Jul 3, 2022 Pending
Array ( [id] => 17950753 [patent_doc_number] => 20220337772 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-20 [patent_title] => IMAGE SENSOR WITH PIXELS INCLUDING PHOTODIODES SHARING FLOATING DIFFUSION REGION [patent_app_type] => utility [patent_app_number] => 17/857135 [patent_app_country] => US [patent_app_date] => 2022-07-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15769 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17857135 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/857135
Image sensor with pixels including photodiodes sharing floating diffusion region Jul 3, 2022 Issued
Array ( [id] => 18069132 [patent_doc_number] => 20220400220 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-15 [patent_title] => SENSOR DEVICES, ELECTRONIC DEVICES, METHOD FOR PERFORMING OBJECT DETECTION BY A SENSOR DEVICE, AND METHOD FOR PERFORMING OBJECT DETECTION BY AN ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 17/836603 [patent_app_country] => US [patent_app_date] => 2022-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8242 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17836603 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/836603
Sensor devices, electronic devices, method for performing object detection by a sensor device, and method for performing object detection by an electronic device Jun 8, 2022 Issued
Array ( [id] => 19080615 [patent_doc_number] => 11950003 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-02 [patent_title] => Vision sensor and operating method of the same [patent_app_type] => utility [patent_app_number] => 17/828331 [patent_app_country] => US [patent_app_date] => 2022-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 10141 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17828331 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/828331
Vision sensor and operating method of the same May 30, 2022 Issued
Array ( [id] => 18814336 [patent_doc_number] => 20230388673 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => PATCH-BASED IMAGE SENSOR [patent_app_type] => utility [patent_app_number] => 17/804014 [patent_app_country] => US [patent_app_date] => 2022-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9479 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -26 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17804014 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/804014
PATCH-BASED IMAGE SENSOR May 24, 2022 Abandoned
Array ( [id] => 17834984 [patent_doc_number] => 20220272288 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-25 [patent_title] => METHOD, APPARATUS AND SYSTEM PROVIDING A STORAGE GATE PIXEL WITH HIGH DYNAMIC RANGE [patent_app_type] => utility [patent_app_number] => 17/744301 [patent_app_country] => US [patent_app_date] => 2022-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2860 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17744301 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/744301
Method, apparatus and system providing a storage gate pixel with high dynamic range May 12, 2022 Issued
Array ( [id] => 18357932 [patent_doc_number] => 11646339 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-09 [patent_title] => Image pickup element, image pickup device, manufacturing device and method [patent_app_type] => utility [patent_app_number] => 17/741387 [patent_app_country] => US [patent_app_date] => 2022-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 35 [patent_figures_cnt] => 35 [patent_no_of_words] => 16476 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17741387 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/741387
Image pickup element, image pickup device, manufacturing device and method May 9, 2022 Issued
Array ( [id] => 19214791 [patent_doc_number] => 12003873 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-04 [patent_title] => Imaging apparatus and electronic device [patent_app_type] => utility [patent_app_number] => 17/732925 [patent_app_country] => US [patent_app_date] => 2022-04-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 30 [patent_no_of_words] => 18113 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17732925 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/732925
Imaging apparatus and electronic device Apr 28, 2022 Issued
Array ( [id] => 18082437 [patent_doc_number] => 20220408049 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => MULTI-LAYER STACKED CAMERA-IMAGE-SENSOR CIRCUIT [patent_app_type] => utility [patent_app_number] => 17/728880 [patent_app_country] => US [patent_app_date] => 2022-04-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7456 [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] => 17728880 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/728880
MULTI-LAYER STACKED CAMERA-IMAGE-SENSOR CIRCUIT Apr 24, 2022 Abandoned
Array ( [id] => 18549391 [patent_doc_number] => 11722756 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-08-08 [patent_title] => Camera module with droplet removing device [patent_app_type] => utility [patent_app_number] => 17/725118 [patent_app_country] => US [patent_app_date] => 2022-04-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 5694 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17725118 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/725118
Camera module with droplet removing device Apr 19, 2022 Issued
Array ( [id] => 17766219 [patent_doc_number] => 20220239833 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-28 [patent_title] => SYSTEMS AND METHODS FOR STABILIZING VIDEOS [patent_app_type] => utility [patent_app_number] => 17/721065 [patent_app_country] => US [patent_app_date] => 2022-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13093 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 231 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17721065 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/721065
Systems and methods for stabilizing videos Apr 13, 2022 Issued
Array ( [id] => 18646544 [patent_doc_number] => 11770634 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-09-26 [patent_title] => Trimming control circuit for current integration ramp DAC settling assist circuit [patent_app_type] => utility [patent_app_number] => 17/719602 [patent_app_country] => US [patent_app_date] => 2022-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 7185 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17719602 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/719602
Trimming control circuit for current integration ramp DAC settling assist circuit Apr 12, 2022 Issued
Array ( [id] => 18952105 [patent_doc_number] => 11895420 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-06 [patent_title] => Ramp generator including emphasis circuit and pre-emphasis circuit, operation method thereof, and image sensor device including the ramp generator [patent_app_type] => utility [patent_app_number] => 17/718450 [patent_app_country] => US [patent_app_date] => 2022-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 14 [patent_no_of_words] => 10786 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17718450 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/718450
Ramp generator including emphasis circuit and pre-emphasis circuit, operation method thereof, and image sensor device including the ramp generator Apr 11, 2022 Issued
Array ( [id] => 17753982 [patent_doc_number] => 20220232187 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-21 [patent_title] => IMAGING DEVICE [patent_app_type] => utility [patent_app_number] => 17/714744 [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] => 16605 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 17714744 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/714744
Imaging device Apr 5, 2022 Issued
Array ( [id] => 19223055 [patent_doc_number] => 20240187759 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => IMAGING DEVICE AND ELECTRONIC APPARATUS [patent_app_type] => utility [patent_app_number] => 18/553809 [patent_app_country] => US [patent_app_date] => 2022-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 30334 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 189 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18553809 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/553809
IMAGING DEVICE AND ELECTRONIC APPARATUS Mar 28, 2022 Pending
Array ( [id] => 18783419 [patent_doc_number] => 11825217 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-11-21 [patent_title] => Image sensing device [patent_app_type] => utility [patent_app_number] => 17/707428 [patent_app_country] => US [patent_app_date] => 2022-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 9692 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17707428 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/707428
Image sensing device Mar 28, 2022 Issued
Array ( [id] => 18388500 [patent_doc_number] => 11659301 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-05-23 [patent_title] => System and method for integration of real time data with image frame for image stabilization [patent_app_type] => utility [patent_app_number] => 17/705428 [patent_app_country] => US [patent_app_date] => 2022-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5003 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [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] => 17705428 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/705428
System and method for integration of real time data with image frame for image stabilization Mar 27, 2022 Issued
Array ( [id] => 17710348 [patent_doc_number] => 20220210356 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-30 [patent_title] => IMAGE SENSOR, IMAGE-CAPTURING APPARATUS AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 17/695345 [patent_app_country] => US [patent_app_date] => 2022-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15165 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17695345 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/695345
Image sensor, image-capturing apparatus and electronic device Mar 14, 2022 Issued
Array ( [id] => 20030311 [patent_doc_number] => 20250168533 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-22 [patent_title] => AUTOMATIC INTEGRATION AND READOUT GAIN READ OUT INTEGRATED CIRCUIT (ROIC) [patent_app_type] => utility [patent_app_number] => 18/840208 [patent_app_country] => US [patent_app_date] => 2022-02-25 [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] => -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] => 18840208 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/840208
AUTOMATIC INTEGRATION AND READOUT GAIN READ OUT INTEGRATED CIRCUIT (ROIC) Feb 24, 2022 Pending
Array ( [id] => 17662097 [patent_doc_number] => 20220182562 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-09 [patent_title] => IMAGING APPARATUS AND METHOD, AND IMAGE PROCESSING APPARATUS AND METHOD [patent_app_type] => utility [patent_app_number] => 17/679920 [patent_app_country] => US [patent_app_date] => 2022-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 44422 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17679920 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/679920
Imaging apparatus and method, and image processing apparatus and method Feb 23, 2022 Issued
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