
Charles S. Chang
Examiner (ID: 13161, Phone: (571)270-5024 , Office: P/2871 )
| Most Active Art Unit | 2871 |
| Art Unit(s) | 2883, 2871, 2881 |
| Total Applications | 1206 |
| Issued Applications | 920 |
| Pending Applications | 63 |
| Abandoned Applications | 244 |
Applications
| Application number | Title of the application | Filing Date | Status |
|---|---|---|---|
Array
(
[id] => 19498842
[patent_doc_number] => 20240337860
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-10-10
[patent_title] => OPTICAL ELEMENT DRIVING MECHANISM
[patent_app_type] => utility
[patent_app_number] => 18/627999
[patent_app_country] => US
[patent_app_date] => 2024-04-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 4863
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -19
[patent_words_short_claim] => 52
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18627999
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/627999 | OPTICAL ELEMENT DRIVING MECHANISM | Apr 4, 2024 | Pending |
Array
(
[id] => 20094655
[patent_doc_number] => 20250224591
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-07-10
[patent_title] => COUPLE-IN LENS ASSEMBLY
[patent_app_type] => utility
[patent_app_number] => 18/623164
[patent_app_country] => US
[patent_app_date] => 2024-04-01
[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] => -8
[patent_words_short_claim] => 151
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18623164
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/623164 | COUPLE-IN LENS ASSEMBLY | Mar 31, 2024 | Pending |
Array
(
[id] => 19818488
[patent_doc_number] => 20250076695
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-03-06
[patent_title] => DISPLAY APPARATUS AND MANUFACTURING METHOD OF THE SAME
[patent_app_type] => utility
[patent_app_number] => 18/616835
[patent_app_country] => US
[patent_app_date] => 2024-03-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 7272
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -14
[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] => 18616835
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/616835 | Display apparatus and manufacturing method of the same | Mar 25, 2024 | Issued |
Array
(
[id] => 20221211
[patent_doc_number] => 20250284142
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-09-11
[patent_title] => Dynamic extraocular filtering for correction of color contrast perception
[patent_app_type] => utility
[patent_app_number] => 18/596596
[patent_app_country] => US
[patent_app_date] => 2024-03-05
[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] => -7
[patent_words_short_claim] => 43
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18596596
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/596596 | Dynamic extraocular filtering for correction of color contrast perception | Mar 4, 2024 | Pending |
Array
(
[id] => 19250548
[patent_doc_number] => 20240201538
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-06-20
[patent_title] => LIQUID CRYSTAL DISPLAY DEVICE, ELECTRONIC APPARATUS, DISPLAY CONTROL METHOD, DISPLAY CONTROL PROGRAM, AND NON-TRANSITORY RECORDING MEDIUM
[patent_app_type] => utility
[patent_app_number] => 18/594971
[patent_app_country] => US
[patent_app_date] => 2024-03-04
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 8578
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[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] => 18594971
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/594971 | Liquid crystal display device, electronic apparatus, display control method, display control program, and non-transitory recording medium | Mar 3, 2024 | Issued |
Array
(
[id] => 20174565
[patent_doc_number] => 12393310
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-08-19
[patent_title] => Display device
[patent_app_type] => utility
[patent_app_number] => 18/590451
[patent_app_country] => US
[patent_app_date] => 2024-02-28
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 7
[patent_figures_cnt] => 11
[patent_no_of_words] => 2906
[patent_no_of_claims] => 18
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 163
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18590451
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/590451 | Display device | Feb 27, 2024 | Issued |
Array
(
[id] => 19917286
[patent_doc_number] => 12292652
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2025-05-06
[patent_title] => User-adjustable color mixing backlight for transflective display
[patent_app_type] => utility
[patent_app_number] => 18/584698
[patent_app_country] => US
[patent_app_date] => 2024-02-22
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 5
[patent_figures_cnt] => 5
[patent_no_of_words] => 0
[patent_no_of_claims] => 20
[patent_no_of_ind_claims] => 1
[patent_words_short_claim] => 319
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18584698
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/584698 | User-adjustable color mixing backlight for transflective display | Feb 21, 2024 | Issued |
Array
(
[id] => 19856776
[patent_doc_number] => 12259610
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-03-25
[patent_title] => Display device
[patent_app_type] => utility
[patent_app_number] => 18/444332
[patent_app_country] => US
[patent_app_date] => 2024-02-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 16
[patent_figures_cnt] => 16
[patent_no_of_words] => 11136
[patent_no_of_claims] => 18
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 200
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18444332
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/444332 | Display device | Feb 15, 2024 | Issued |
Array
(
[id] => 19609797
[patent_doc_number] => 12158670
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2024-12-03
[patent_title] => Dual-sided waveguide display with improved light scattering
[patent_app_type] => utility
[patent_app_number] => 18/440259
[patent_app_country] => US
[patent_app_date] => 2024-02-13
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 3
[patent_figures_cnt] => 4
[patent_no_of_words] => 5622
[patent_no_of_claims] => 17
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 172
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18440259
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/440259 | Dual-sided waveguide display with improved light scattering | Feb 12, 2024 | Issued |
Array
(
[id] => 19235376
[patent_doc_number] => 20240192570
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-06-13
[patent_title] => METHOD FOR DRIVING OPTICAL ELEMENT
[patent_app_type] => utility
[patent_app_number] => 18/439314
[patent_app_country] => US
[patent_app_date] => 2024-02-12
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 7009
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -6
[patent_words_short_claim] => 153
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18439314
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/439314 | Method for driving optical element | Feb 11, 2024 | Issued |
Array
(
[id] => 19204201
[patent_doc_number] => 20240176100
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-05-30
[patent_title] => Display Systems With Component Mounting Structures
[patent_app_type] => utility
[patent_app_number] => 18/435407
[patent_app_country] => US
[patent_app_date] => 2024-02-07
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 5131
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 69
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18435407
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/435407 | Display Systems With Component Mounting Structures | Feb 6, 2024 | Pending |
Array
(
[id] => 19204300
[patent_doc_number] => 20240176199
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-05-30
[patent_title] => LIQUID CRYSTAL DISPLAY DEVICE
[patent_app_type] => utility
[patent_app_number] => 18/432239
[patent_app_country] => US
[patent_app_date] => 2024-02-05
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 37660
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => 0
[patent_words_short_claim] => 84
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18432239
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/432239 | LIQUID CRYSTAL DISPLAY DEVICE | Feb 4, 2024 | Abandoned |
Array
(
[id] => 19191554
[patent_doc_number] => 20240170467
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-05-23
[patent_title] => ELECTRONIC DEVICE
[patent_app_type] => utility
[patent_app_number] => 18/427303
[patent_app_country] => US
[patent_app_date] => 2024-01-30
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 10348
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -19
[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] => 18427303
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/427303 | Electronic device | Jan 29, 2024 | Issued |
Array
(
[id] => 19346765
[patent_doc_number] => 20240255728
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-01
[patent_title] => OPTICAL SYSTEMS WITH IMPROVED ADAPTABLE VIEWING ANGLE CONTROL
[patent_app_type] => utility
[patent_app_number] => 18/424316
[patent_app_country] => US
[patent_app_date] => 2024-01-26
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 26837
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -17
[patent_words_short_claim] => 223
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18424316
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/424316 | OPTICAL SYSTEMS WITH IMPROVED ADAPTABLE VIEWING ANGLE CONTROL | Jan 25, 2024 | Pending |
Array
(
[id] => 19898973
[patent_doc_number] => 12276893
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-04-15
[patent_title] => Active matrix substrate, method for manufacturing active matrix substrate, and liquid crystal display device with touch sensor using active matrix substrate
[patent_app_type] => utility
[patent_app_number] => 18/416940
[patent_app_country] => US
[patent_app_date] => 2024-01-19
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 70
[patent_figures_cnt] => 70
[patent_no_of_words] => 21020
[patent_no_of_claims] => 23
[patent_no_of_ind_claims] => 3
[patent_words_short_claim] => 239
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18416940
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/416940 | Active matrix substrate, method for manufacturing active matrix substrate, and liquid crystal display device with touch sensor using active matrix substrate | Jan 18, 2024 | Issued |
Array
(
[id] => 19382593
[patent_doc_number] => 20240272463
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-15
[patent_title] => VIEWING ANGLE CONTROL LIQUID CRYSTAL PANEL AND DISPLAY DEVICE
[patent_app_type] => utility
[patent_app_number] => 18/416697
[patent_app_country] => US
[patent_app_date] => 2024-01-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 24720
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -9
[patent_words_short_claim] => 404
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18416697
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/416697 | Viewing angle control liquid crystal panel and display device | Jan 17, 2024 | Issued |
Array
(
[id] => 19405208
[patent_doc_number] => 20240288719
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-08-29
[patent_title] => ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREOF
[patent_app_type] => utility
[patent_app_number] => 18/415998
[patent_app_country] => US
[patent_app_date] => 2024-01-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 6294
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -18
[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] => 18415998
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/415998 | Electronic device and manufacturing method thereof | Jan 17, 2024 | Issued |
Array
(
[id] => 19718660
[patent_doc_number] => 12204195
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-01-21
[patent_title] => Electronic device
[patent_app_type] => utility
[patent_app_number] => 18/414152
[patent_app_country] => US
[patent_app_date] => 2024-01-16
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 16
[patent_figures_cnt] => 29
[patent_no_of_words] => 10403
[patent_no_of_claims] => 17
[patent_no_of_ind_claims] => 4
[patent_words_short_claim] => 85
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => patent
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18414152
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/414152 | Electronic device | Jan 15, 2024 | Issued |
Array
(
[id] => 19319865
[patent_doc_number] => 20240241409
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2024-07-18
[patent_title] => ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS
[patent_app_type] => utility
[patent_app_number] => 18/412603
[patent_app_country] => US
[patent_app_date] => 2024-01-15
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 9807
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -7
[patent_words_short_claim] => 175
[patent_maintenance] => 1
[patent_no_of_assignments] => 0
[patent_current_assignee] =>[type] => publication
[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18412603
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/412603 | Electro-optical device and electronic apparatus | Jan 14, 2024 | Issued |
Array
(
[id] => 19755921
[patent_doc_number] => 20250044486
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2025-02-06
[patent_title] => LIQUID LENS CONTROLLED BY INTERDIGITAL ELECTRODE MADE OF TWO INSULATED WIRES
[patent_app_type] => utility
[patent_app_number] => 18/410948
[patent_app_country] => US
[patent_app_date] => 2024-01-11
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
[patent_figures_cnt] => 0
[patent_no_of_words] => 3831
[patent_no_of_claims] => 0
[patent_no_of_ind_claims] => -7
[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] => 18410948
[rel_patent_id] =>[rel_patent_doc_number] =>) 18/410948 | Liquid lens controlled by interdigital electrode made of two insulated wires | Jan 10, 2024 | Issued |