Search

John S. Y. Chu

Examiner (ID: 18244, Phone: (571)272-1329 , Office: P/1722 )

Most Active Art Unit
1752
Art Unit(s)
1506, 1795, 1752, 1113, 1722, 1737
Total Applications
2666
Issued Applications
2087
Pending Applications
160
Abandoned Applications
454

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17274414 [patent_doc_number] => 20210380612 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-12-09 [patent_title] => PHOTORESIST COMPOSITIONS [patent_app_type] => utility [patent_app_number] => 17/144242 [patent_app_country] => US [patent_app_date] => 2021-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4906 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17144242 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/144242
PHOTORESIST COMPOSITIONS Jan 7, 2021 Abandoned
Array ( [id] => 19949736 [patent_doc_number] => 12321097 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-03 [patent_title] => Method of removing photoresist, laminate, method of forming metallic pattern, polyimide resin and stripper [patent_app_type] => utility [patent_app_number] => 17/141228 [patent_app_country] => US [patent_app_date] => 2021-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 1866 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 35 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17141228 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/141228
Method of removing photoresist, laminate, method of forming metallic pattern, polyimide resin and stripper Jan 4, 2021 Issued
Array ( [id] => 18531432 [patent_doc_number] => 20230236504 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => COMPOUND, BINDER RESIN, NEGATIVE-TYPE PHOTOSENSITIVE RESIN COMPOSITION, AND DISPLAY DEVICE COMPRISING BLACK BANK FORMED USING SAME [patent_app_type] => utility [patent_app_number] => 17/769477 [patent_app_country] => US [patent_app_date] => 2020-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9412 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 228 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17769477 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/769477
COMPOUND, BINDER RESIN, NEGATIVE-TYPE PHOTOSENSITIVE RESIN COMPOSITION, AND DISPLAY DEVICE COMPRISING BLACK BANK FORMED USING SAME Dec 16, 2020 Pending
Array ( [id] => 18184577 [patent_doc_number] => 20230045307 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-09 [patent_title] => REPLACEMENT LIQUID OF LIQUID FILLING BETWEEN RESIST PATTERNS, AND METHOD FOR PRODUCING RESIST PATTERNS USING THE SAME [patent_app_type] => utility [patent_app_number] => 17/777638 [patent_app_country] => US [patent_app_date] => 2020-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8906 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 17777638 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/777638
REPLACEMENT LIQUID OF LIQUID FILLING BETWEEN RESIST PATTERNS, AND METHOD FOR PRODUCING RESIST PATTERNS USING THE SAME Nov 15, 2020 Pending
Array ( [id] => 18184577 [patent_doc_number] => 20230045307 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-09 [patent_title] => REPLACEMENT LIQUID OF LIQUID FILLING BETWEEN RESIST PATTERNS, AND METHOD FOR PRODUCING RESIST PATTERNS USING THE SAME [patent_app_type] => utility [patent_app_number] => 17/777638 [patent_app_country] => US [patent_app_date] => 2020-11-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8906 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [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] => 17777638 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/777638
REPLACEMENT LIQUID OF LIQUID FILLING BETWEEN RESIST PATTERNS, AND METHOD FOR PRODUCING RESIST PATTERNS USING THE SAME Nov 15, 2020 Pending
Array ( [id] => 18163601 [patent_doc_number] => 20230030194 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-02 [patent_title] => PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE RESIN FILM, PHOTOSENSITIVE DRY FILM, PATTERNING PROCESS, AND LIGHT EMITTING DEVICE [patent_app_type] => utility [patent_app_number] => 17/778203 [patent_app_country] => US [patent_app_date] => 2020-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11874 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [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] => 17778203 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/778203
Photosensitive resin composition, photosensitive resin film, photosensitive dry film, patterning process, and light emitting device Nov 11, 2020 Issued
Array ( [id] => 17991621 [patent_doc_number] => 20220357658 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-10 [patent_title] => DNQ-TYPE PHOTORESIST COMPOSITION INCLUDING ALKALI-SOLUBLE ACRYLIC RESINS [patent_app_type] => utility [patent_app_number] => 17/762589 [patent_app_country] => US [patent_app_date] => 2020-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11663 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [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] => 17762589 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/762589
DNQ-type photoresist composition including alkali-soluble acrylic resins Nov 11, 2020 Issued
Array ( [id] => 19044994 [patent_doc_number] => 11934101 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-03-19 [patent_title] => Photoresist composition and method of forming photoresist pattern [patent_app_type] => utility [patent_app_number] => 17/094706 [patent_app_country] => US [patent_app_date] => 2020-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 21 [patent_figures_cnt] => 22 [patent_no_of_words] => 9820 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17094706 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/094706
Photoresist composition and method of forming photoresist pattern Nov 9, 2020 Issued
Array ( [id] => 17961724 [patent_doc_number] => 20220342305 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-27 [patent_title] => DUAL-CURE PHASE-SEPARATION TYPE PHOTOSENSITIVE RESIN COMPOSITION FOR CONTINUOUS 3D PRINTING WITH HIGH PRECISION [patent_app_type] => utility [patent_app_number] => 17/433946 [patent_app_country] => US [patent_app_date] => 2020-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4217 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17433946 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/433946
Dual-cure phase-separation type photosensitive resin composition for continuous 3D printing with high precision Nov 3, 2020 Issued
Array ( [id] => 18006665 [patent_doc_number] => 20220365431 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-17 [patent_title] => BINDER RESIN, NEGATIVE-TYPE PHOTOSENSITIVE RESIN COMPOSITION, AND DISPLAY DEVICE COMPRISING BLACK BANK FORMED USING SAME [patent_app_type] => utility [patent_app_number] => 17/640934 [patent_app_country] => US [patent_app_date] => 2020-11-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10206 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 274 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17640934 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/640934
Binder resin, negative-type photosensitive resin composition, and display device comprising black bank formed using same Nov 3, 2020 Issued
Array ( [id] => 18079094 [patent_doc_number] => 20220404706 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => CHEMICAL-RESISTANT POLYVALENT CARBOXYLIC ACID-CONTAINING PROTECTIVE FILM [patent_app_type] => utility [patent_app_number] => 17/765722 [patent_app_country] => US [patent_app_date] => 2020-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8116 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17765722 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/765722
CHEMICAL-RESISTANT POLYVALENT CARBOXYLIC ACID-CONTAINING PROTECTIVE FILM Oct 26, 2020 Pending
Array ( [id] => 18079094 [patent_doc_number] => 20220404706 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => CHEMICAL-RESISTANT POLYVALENT CARBOXYLIC ACID-CONTAINING PROTECTIVE FILM [patent_app_type] => utility [patent_app_number] => 17/765722 [patent_app_country] => US [patent_app_date] => 2020-10-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8116 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17765722 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/765722
CHEMICAL-RESISTANT POLYVALENT CARBOXYLIC ACID-CONTAINING PROTECTIVE FILM Oct 26, 2020 Pending
Array ( [id] => 19099388 [patent_doc_number] => 20240118616 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => POSITIVE PHOTOSENSITIVE RESIN COMPOSITION AND DISPLAY DEVICE USING THE SAME [patent_app_type] => utility [patent_app_number] => 17/767873 [patent_app_country] => US [patent_app_date] => 2020-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19120 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 285 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17767873 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/767873
Positive photosensitive resin composition and display device using the same Oct 7, 2020 Issued
Array ( [id] => 19136711 [patent_doc_number] => 11971660 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-30 [patent_title] => Cross-linked polymer for resist [patent_app_type] => utility [patent_app_number] => 17/310865 [patent_app_country] => US [patent_app_date] => 2020-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6203 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17310865 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/310865
Cross-linked polymer for resist Sep 29, 2020 Issued
Array ( [id] => 19941846 [patent_doc_number] => 12313973 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-27 [patent_title] => Insulating layer for multilayer printed circuit board, multilayer printed circuit board comprising same, and method for producing same [patent_app_type] => utility [patent_app_number] => 17/632815 [patent_app_country] => US [patent_app_date] => 2020-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 5 [patent_no_of_words] => 5832 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17632815 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/632815
Insulating layer for multilayer printed circuit board, multilayer printed circuit board comprising same, and method for producing same Sep 24, 2020 Issued
Array ( [id] => 18037938 [patent_doc_number] => 20220382154 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-01 [patent_title] => PHOTOSENSITIVE RESIN COMPOSITION, DRY FILM, CURED MATERIAL AND ELECTRONIC COMPONENT [patent_app_type] => utility [patent_app_number] => 17/766101 [patent_app_country] => US [patent_app_date] => 2020-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10358 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17766101 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/766101
PHOTOSENSITIVE RESIN COMPOSITION, DRY FILM, CURED MATERIAL AND ELECTRONIC COMPONENT Sep 16, 2020 Abandoned
Array ( [id] => 16542846 [patent_doc_number] => 20200409261 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-31 [patent_title] => COMPOUND, RESIN, RESIST COMPOSITION OR RADIATION-SENSITIVE COMPOSITION, RESIST PATTERN FORMATION METHOD, METHOD FOR PRODUCING AMORPHOUS FILM, UNDERLAYER FILM FORMING MATERIAL FOR LITHOGRAPHY, COMPOSITION FOR UNDERLAYER FILM FORMATION FOR LITHOGRAPHY, METHOD FOR FORMING CIRCUIT PATTERN, AND PURIFICATION METHOD [patent_app_type] => utility [patent_app_number] => 17/020532 [patent_app_country] => US [patent_app_date] => 2020-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 38463 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17020532 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/020532
Compound, resin, resist composition or radiation-sensitive composition, resist pattern formation method, method for producing amorphous film, underlayer film forming material for lithography, composition for underlayer film formation for lithography, method for forming circuit pattern, and purification method Sep 13, 2020 Issued
Array ( [id] => 16542848 [patent_doc_number] => 20200409263 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-31 [patent_title] => PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR MANUFACTURING CURED RELIEF PATTERN, AND SEMICONDUCTOR APPARATUS [patent_app_type] => utility [patent_app_number] => 17/018459 [patent_app_country] => US [patent_app_date] => 2020-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 87235 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 17018459 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/018459
PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR MANUFACTURING CURED RELIEF PATTERN, AND SEMICONDUCTOR APPARATUS Sep 10, 2020 Abandoned
Array ( [id] => 17984207 [patent_doc_number] => 20220350244 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-11-03 [patent_title] => PHOTOSENSITIVE RESIN COMPOSITION, CURED FILM, AND DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 17/640256 [patent_app_country] => US [patent_app_date] => 2020-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15593 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 17640256 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/640256
PHOTOSENSITIVE RESIN COMPOSITION, CURED FILM, AND DISPLAY DEVICE Sep 2, 2020 Abandoned
Array ( [id] => 18188945 [patent_doc_number] => 11579527 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-14 [patent_title] => Negative type photosensitive composition comprising black colorant [patent_app_type] => utility [patent_app_number] => 17/630712 [patent_app_country] => US [patent_app_date] => 2020-07-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13930 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17630712 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/630712
Negative type photosensitive composition comprising black colorant Jul 28, 2020 Issued
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