Search

Leonard Chang

Supervisory Patent Examiner (ID: 7771, Phone: (571)270-3691 , Office: P/4166 )

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

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19685790 [patent_doc_number] => 20250004335 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [patent_title] => PIXEL STRUCTURE AND DISPLAY PANEL [patent_app_type] => utility [patent_app_number] => 17/769776 [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] => 5853 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 232 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17769776 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/769776
Pixel structure and display panel Apr 13, 2022 Issued
Array ( [id] => 19362459 [patent_doc_number] => 20240264493 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-08 [patent_title] => DISPLAY PANEL, ARRAY SUBSTRATE, AND MANUFACTURING METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 17/771605 [patent_app_country] => US [patent_app_date] => 2022-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6019 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 17771605 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/771605
Display panel, array substrate, and manufacturing method thereof Apr 12, 2022 Issued
Array ( [id] => 20481404 [patent_doc_number] => 12529876 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-20 [patent_title] => Compact optical microscope, metrology device comprising the optical microscope and a wafer positioning metrology apparatus comprising the metrology device [patent_app_type] => utility [patent_app_number] => 18/286387 [patent_app_country] => US [patent_app_date] => 2022-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 16 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18286387 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/286387
Compact optical microscope, metrology device comprising the optical microscope and a wafer positioning metrology apparatus comprising the metrology device Apr 11, 2022 Issued
Array ( [id] => 18606245 [patent_doc_number] => 11747708 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-05 [patent_title] => Polarization-insensitive phase modulator [patent_app_type] => utility [patent_app_number] => 17/713255 [patent_app_country] => US [patent_app_date] => 2022-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 5328 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17713255 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/713255
Polarization-insensitive phase modulator Apr 4, 2022 Issued
Array ( [id] => 17736288 [patent_doc_number] => 20220221747 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-14 [patent_title] => DISPLAY SYSTEM WITH VARIABLE POWER REFLECTOR [patent_app_type] => utility [patent_app_number] => 17/710674 [patent_app_country] => US [patent_app_date] => 2022-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20465 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17710674 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/710674
Display system with variable power reflector Mar 30, 2022 Issued
Array ( [id] => 19235331 [patent_doc_number] => 20240192525 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-13 [patent_title] => Sunglasses with near-vision adjustment [patent_app_type] => utility [patent_app_number] => 18/548932 [patent_app_country] => US [patent_app_date] => 2022-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7395 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18548932 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/548932
Sunglasses with near-vision adjustment Mar 27, 2022 Abandoned
Array ( [id] => 18577052 [patent_doc_number] => 11733577 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-08-22 [patent_title] => Display device and array substrate of display device [patent_app_type] => utility [patent_app_number] => 17/704161 [patent_app_country] => US [patent_app_date] => 2022-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 24 [patent_no_of_words] => 10061 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17704161 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/704161
Display device and array substrate of display device Mar 24, 2022 Issued
Array ( [id] => 18356328 [patent_doc_number] => 11644726 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-05-09 [patent_title] => Display device with signal line protrusion corresponding to common electrode line bend segment [patent_app_type] => utility [patent_app_number] => 17/703896 [patent_app_country] => US [patent_app_date] => 2022-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 7673 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 372 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17703896 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/703896
Display device with signal line protrusion corresponding to common electrode line bend segment Mar 23, 2022 Issued
Array ( [id] => 18904126 [patent_doc_number] => 20240019611 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => FOCUS VARIABLE LIQUID LENS AND METHOD OF MANUFACTURING THE SAME [patent_app_type] => utility [patent_app_number] => 18/284030 [patent_app_country] => US [patent_app_date] => 2022-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6785 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18284030 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/284030
FOCUS VARIABLE LIQUID LENS AND METHOD OF MANUFACTURING THE SAME Mar 22, 2022 Abandoned
Array ( [id] => 17721849 [patent_doc_number] => 20220214571 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-07 [patent_title] => LIGHT EMITTING APPARATUS AND WINDOW [patent_app_type] => utility [patent_app_number] => 17/700118 [patent_app_country] => US [patent_app_date] => 2022-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4825 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 17700118 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/700118
Light emitting apparatus and window Mar 20, 2022 Issued
Array ( [id] => 18362290 [patent_doc_number] => 20230143881 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => DISPLAY PANEL [patent_app_type] => utility [patent_app_number] => 17/695791 [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] => 6106 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 17695791 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/695791
Display panel Mar 14, 2022 Issued
Array ( [id] => 19189425 [patent_doc_number] => 20240168338 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-23 [patent_title] => DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 17/755534 [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] => 5476 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17755534 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/755534
Display device having liquid crystal compensation layer Mar 14, 2022 Issued
Array ( [id] => 18973554 [patent_doc_number] => 20240053646 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => ARRAY SUBSTRATE AND DISPLAY PANEL [patent_app_type] => utility [patent_app_number] => 17/754249 [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] => 6725 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17754249 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/754249
ARRAY SUBSTRATE AND DISPLAY PANEL Mar 14, 2022 Abandoned
Array ( [id] => 17706339 [patent_doc_number] => 20220206345 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-30 [patent_title] => Transparent display [patent_app_type] => utility [patent_app_number] => 17/694633 [patent_app_country] => US [patent_app_date] => 2022-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5368 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17694633 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/694633
Transparent display Mar 13, 2022 Issued
Array ( [id] => 19159283 [patent_doc_number] => 20240151990 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-09 [patent_title] => Electro-Optical Component [patent_app_type] => utility [patent_app_number] => 18/549114 [patent_app_country] => US [patent_app_date] => 2022-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4389 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18549114 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/549114
Electro-optical component Mar 7, 2022 Issued
Array ( [id] => 19566069 [patent_doc_number] => 12140838 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-12 [patent_title] => Barrier rib for image display device, manufacturing method therefor, and image display device comprising barrier rib [patent_app_type] => utility [patent_app_number] => 18/275795 [patent_app_country] => US [patent_app_date] => 2022-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 5 [patent_no_of_words] => 8397 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18275795 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/275795
Barrier rib for image display device, manufacturing method therefor, and image display device comprising barrier rib Feb 23, 2022 Issued
Array ( [id] => 17831836 [patent_doc_number] => 20220269140 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-08-25 [patent_title] => ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS [patent_app_type] => utility [patent_app_number] => 17/678008 [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] => 12431 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17678008 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/678008
Electro-optical device and electronic apparatus Feb 22, 2022 Issued
Array ( [id] => 18577043 [patent_doc_number] => 11733568 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-08-22 [patent_title] => Transparent display [patent_app_type] => utility [patent_app_number] => 17/679045 [patent_app_country] => US [patent_app_date] => 2022-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 27 [patent_no_of_words] => 5424 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17679045 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/679045
Transparent display Feb 22, 2022 Issued
Array ( [id] => 17674473 [patent_doc_number] => 20220187640 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-06-16 [patent_title] => LIQUID CRYSTAL DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 17/676462 [patent_app_country] => US [patent_app_date] => 2022-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6744 [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] => 17676462 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/676462
Liquid crystal display device Feb 20, 2022 Issued
Array ( [id] => 17616067 [patent_doc_number] => 20220158347 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-19 [patent_title] => PHASE-SHIFT UNIT, PHASE SHIFTER AND ANTENNA [patent_app_type] => utility [patent_app_number] => 17/649708 [patent_app_country] => US [patent_app_date] => 2022-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5849 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 17649708 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/649708
Phase-shift unit, phase shifter and antenna Feb 1, 2022 Issued
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