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] => 19718592 [patent_doc_number] => 12204126 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-21 [patent_title] => Optical film and electroluminescence display device [patent_app_type] => utility [patent_app_number] => 18/354234 [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] => 19188 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18354234 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/354234
Optical film and electroluminescence display device Jul 17, 2023 Issued
Array ( [id] => 19131012 [patent_doc_number] => 20240136365 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => ARRAY SUBSTRATE AND CONTROL METHOD THEREOF, MANUFACTURING METHOD THEREOF AND ELECTRONIC PAPER DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 18/352515 [patent_app_country] => US [patent_app_date] => 2023-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6543 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 18352515 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/352515
Array substrate and control method thereof, manufacturing method thereof and electronic paper display device Jul 13, 2023 Issued
Array ( [id] => 19131012 [patent_doc_number] => 20240136365 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-25 [patent_title] => ARRAY SUBSTRATE AND CONTROL METHOD THEREOF, MANUFACTURING METHOD THEREOF AND ELECTRONIC PAPER DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 18/352515 [patent_app_country] => US [patent_app_date] => 2023-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6543 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 18352515 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/352515
Array substrate and control method thereof, manufacturing method thereof and electronic paper display device Jul 13, 2023 Issued
Array ( [id] => 19551772 [patent_doc_number] => 12135475 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-05 [patent_title] => Display device and display system comprising optical interface [patent_app_type] => utility [patent_app_number] => 18/221000 [patent_app_country] => US [patent_app_date] => 2023-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 7225 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18221000 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/221000
Display device and display system comprising optical interface Jul 11, 2023 Issued
Array ( [id] => 18862954 [patent_doc_number] => 20230417390 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-28 [patent_title] => LIGHT-EMITTING DEVICE, DISPLAY APPARATUS AND LIGHTING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/215917 [patent_app_country] => US [patent_app_date] => 2023-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9405 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18215917 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/215917
LIGHT-EMITTING DEVICE, DISPLAY APPARATUS AND LIGHTING APPARATUS Jun 28, 2023 Pending
Array ( [id] => 19506272 [patent_doc_number] => 12117689 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-10-15 [patent_title] => Polarizers and liquid crystal display devices [patent_app_type] => utility [patent_app_number] => 18/263208 [patent_app_country] => US [patent_app_date] => 2023-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 20 [patent_no_of_words] => 13097 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [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] => 18263208 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/263208
Polarizers and liquid crystal display devices Jun 20, 2023 Issued
Array ( [id] => 20389480 [patent_doc_number] => 12489217 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Artificial dielectric isolator for THz radiation [patent_app_type] => utility [patent_app_number] => 18/335049 [patent_app_country] => US [patent_app_date] => 2023-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 0 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18335049 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/335049
Artificial dielectric isolator for THz radiation Jun 13, 2023 Issued
Array ( [id] => 19044959 [patent_doc_number] => 11934065 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-03-19 [patent_title] => Display device [patent_app_type] => utility [patent_app_number] => 18/331188 [patent_app_country] => US [patent_app_date] => 2023-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 10382 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [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] => 18331188 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/331188
Display device Jun 7, 2023 Issued
Array ( [id] => 18898874 [patent_doc_number] => 20240014359 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 18/206599 [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] => 10777 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18206599 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/206599
ELECTRONIC DEVICE Jun 5, 2023 Pending
Array ( [id] => 19718686 [patent_doc_number] => 12204221 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-01-21 [patent_title] => High-brightness liquid crystal handwriting device [patent_app_type] => utility [patent_app_number] => 18/263131 [patent_app_country] => US [patent_app_date] => 2023-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3258 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18263131 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/263131
High-brightness liquid crystal handwriting device Jun 2, 2023 Issued
Array ( [id] => 19616803 [patent_doc_number] => 20240402483 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => AUTOSTEREOSCOPIC CAMPFIRE DISPLAY [patent_app_type] => utility [patent_app_number] => 18/325255 [patent_app_country] => US [patent_app_date] => 2023-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7973 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18325255 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/325255
Autostereoscopic campfire display May 29, 2023 Issued
Array ( [id] => 18741275 [patent_doc_number] => 20230350256 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => DISPLAY DEVICE, DISPLAY MODULE, AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 18/202557 [patent_app_country] => US [patent_app_date] => 2023-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 25065 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18202557 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/202557
Display device, display module, and electronic device May 25, 2023 Issued
Array ( [id] => 19602947 [patent_doc_number] => 20240393827 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => HOOD DEVICE SYSTEM WITH PROTECTIVE DEVICE HOLDER AND UPPER HOOD FOR A HANDHELD ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 18/201548 [patent_app_country] => US [patent_app_date] => 2023-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5670 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 241 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18201548 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/201548
HOOD DEVICE SYSTEM WITH PROTECTIVE DEVICE HOLDER AND UPPER HOOD FOR A HANDHELD ELECTRONIC DEVICE May 23, 2023 Pending
Array ( [id] => 18771987 [patent_doc_number] => 20230366808 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-16 [patent_title] => METHOD FOR INSTALLING ONE OR MORE OPTICAL ELEMENTS IN A HOUSING [patent_app_type] => utility [patent_app_number] => 18/318339 [patent_app_country] => US [patent_app_date] => 2023-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8995 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 230 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18318339 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/318339
Method for installing one or more optical elements in a housing May 15, 2023 Issued
Array ( [id] => 18598672 [patent_doc_number] => 20230273471 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-31 [patent_title] => DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 18/195529 [patent_app_country] => US [patent_app_date] => 2023-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 24831 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [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] => 18195529 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/195529
Display device May 9, 2023 Issued
Array ( [id] => 18616308 [patent_doc_number] => 20230283047 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-07 [patent_title] => BROADENED SPECTRUM LASER DIODE FOR DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 18/313519 [patent_app_country] => US [patent_app_date] => 2023-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16424 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18313519 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/313519
BROADENED SPECTRUM LASER DIODE FOR DISPLAY DEVICE May 7, 2023 Pending
Array ( [id] => 18568661 [patent_doc_number] => 20230258997 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => FOUR PARTICLE ELECTROPHORETIC MEDIUM PROVIDING FAST, HIGH-CONTRAST OPTICAL STATE SWITCHING [patent_app_type] => utility [patent_app_number] => 18/140161 [patent_app_country] => US [patent_app_date] => 2023-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15234 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -29 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18140161 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/140161
Four particle electrophoretic medium providing fast, high-contrast optical state switching Apr 26, 2023 Issued
Array ( [id] => 18863681 [patent_doc_number] => 20230418117 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-28 [patent_title] => AUTOMATIC SMART GLASS MAPPING [patent_app_type] => utility [patent_app_number] => 18/307745 [patent_app_country] => US [patent_app_date] => 2023-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18628 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18307745 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/307745
Automatic smart glass mapping Apr 25, 2023 Issued
Array ( [id] => 19628663 [patent_doc_number] => 12167538 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-10 [patent_title] => Flexible circuit film and display apparatus having the same [patent_app_type] => utility [patent_app_number] => 18/139900 [patent_app_country] => US [patent_app_date] => 2023-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 6707 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18139900 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/139900
Flexible circuit film and display apparatus having the same Apr 25, 2023 Issued
Array ( [id] => 20079029 [patent_doc_number] => 12353093 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Liquid crystal display having a frontside light control film [patent_app_type] => utility [patent_app_number] => 18/138980 [patent_app_country] => US [patent_app_date] => 2023-04-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 4907 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18138980 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/138980
Liquid crystal display having a frontside light control film Apr 24, 2023 Issued
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