Search

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 numberTitle of the applicationFiling DateStatus
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
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