Search

John S. Y. Chu

Examiner (ID: 16993, Phone: (571)272-1329 , Office: P/1722 )

Most Active Art Unit
1752
Art Unit(s)
1795, 1752, 1506, 1722, 1113, 1737
Total Applications
2694
Issued Applications
2094
Pending Applications
160
Abandoned Applications
459

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20594933 [patent_doc_number] => 12578646 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-17 [patent_title] => Organotin oxide hydroxide patterning compositions, precursors, and patterning [patent_app_type] => utility [patent_app_number] => 19/081518 [patent_app_country] => US [patent_app_date] => 2025-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 16 [patent_no_of_words] => 14544 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 1 [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] => 19081518 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/081518
Organotin oxide hydroxide patterning compositions, precursors, and patterning Mar 16, 2025 Issued
Array ( [id] => 20061178 [patent_doc_number] => 20250199400 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-06-19 [patent_title] => SEMICONDUCTOR PHOTORESIST COMPOSITION, METHOD FOR PREPARING THEREOF AND METHOD OF FORMING PATTERNS USING THE COMPOSITION [patent_app_type] => utility [patent_app_number] => 19/070505 [patent_app_country] => US [patent_app_date] => 2025-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3170 [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] => 19070505 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/070505
SEMICONDUCTOR PHOTORESIST COMPOSITION, METHOD FOR PREPARING THEREOF AND METHOD OF FORMING PATTERNS USING THE COMPOSITION Mar 3, 2025 Pending
Array ( [id] => 20403268 [patent_doc_number] => 12493241 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-09 [patent_title] => Photoacid generators, photoresist compositions, and pattern formation methods [patent_app_type] => utility [patent_app_number] => 18/908129 [patent_app_country] => US [patent_app_date] => 2024-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9415 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18908129 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/908129
Photoacid generators, photoresist compositions, and pattern formation methods Oct 6, 2024 Issued
Array ( [id] => 19685831 [patent_doc_number] => 20250004376 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [patent_title] => RESIST MATERIAL AND PATTERN FORMING METHOD [patent_app_type] => utility [patent_app_number] => 18/829865 [patent_app_country] => US [patent_app_date] => 2024-09-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13369 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18829865 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/829865
RESIST MATERIAL AND PATTERN FORMING METHOD Sep 9, 2024 Pending
Array ( [id] => 19573443 [patent_doc_number] => 20240377735 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => EUV METALLIC RESIST PERFORMANCE ENHANCEMENT VIA ADDITIVES [patent_app_type] => utility [patent_app_number] => 18/783765 [patent_app_country] => US [patent_app_date] => 2024-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6879 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 14 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18783765 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/783765
EUV METALLIC RESIST PERFORMANCE ENHANCEMENT VIA ADDITIVES Jul 24, 2024 Pending
Array ( [id] => 19573447 [patent_doc_number] => 20240377739 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => RESIN, PHOTORESIST COMPOSITION, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE [patent_app_type] => utility [patent_app_number] => 18/782565 [patent_app_country] => US [patent_app_date] => 2024-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13037 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18782565 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/782565
RESIN, PHOTORESIST COMPOSITION, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE Jul 23, 2024 Pending
Array ( [id] => 19571843 [patent_doc_number] => 20240376135 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => TIN DODECAMERS AND RADIATION PATTERNABLE COATINGS WITH STRONG EUV ABSORPTION [patent_app_type] => utility [patent_app_number] => 18/779539 [patent_app_country] => US [patent_app_date] => 2024-07-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9389 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 18 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18779539 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/779539
Tin dodecamers and radiation patternable coatings with strong euv absorption Jul 21, 2024 Issued
Array ( [id] => 19587959 [patent_doc_number] => 20240385516 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-21 [patent_title] => PHOTORESIST FOR SEMICONDUCTOR FABRICATION [patent_app_type] => utility [patent_app_number] => 18/757949 [patent_app_country] => US [patent_app_date] => 2024-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6945 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 152 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18757949 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/757949
PHOTORESIST FOR SEMICONDUCTOR FABRICATION Jun 27, 2024 Pending
Array ( [id] => 19481483 [patent_doc_number] => 20240329525 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-03 [patent_title] => PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR MANUFACTURING CURED RELIEF PATTERN, AND SEMICONDUCTOR APPARATUS [patent_app_type] => utility [patent_app_number] => 18/742227 [patent_app_country] => US [patent_app_date] => 2024-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 87212 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [patent_words_short_claim] => 257 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18742227 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/742227
PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR MANUFACTURING CURED RELIEF PATTERN, AND SEMICONDUCTOR APPARATUS Jun 12, 2024 Pending
Array ( [id] => 20145317 [patent_doc_number] => 12379659 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Photoresist composition and method of manufacturing a semiconductor device [patent_app_type] => utility [patent_app_number] => 18/609833 [patent_app_country] => US [patent_app_date] => 2024-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 5254 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18609833 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/609833
Photoresist composition and method of manufacturing a semiconductor device Mar 18, 2024 Issued
Array ( [id] => 20094738 [patent_doc_number] => 20250224674 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-10 [patent_title] => PHOTOSENSITIVE RESIN FILM AND APPLICATION THEREOF [patent_app_type] => utility [patent_app_number] => 18/590304 [patent_app_country] => US [patent_app_date] => 2024-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5171 [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] => 18590304 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/590304
PHOTOSENSITIVE RESIN FILM AND APPLICATION THEREOF Feb 27, 2024 Pending
Array ( [id] => 19267125 [patent_doc_number] => 20240210827 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-27 [patent_title] => PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR MANUFACTURING CURED RELIEF PATTERN, AND SEMICONDUCTOR APPARATUS [patent_app_type] => utility [patent_app_number] => 18/396056 [patent_app_country] => US [patent_app_date] => 2023-12-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 87200 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 1090 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18396056 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/396056
PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR MANUFACTURING CURED RELIEF PATTERN, AND SEMICONDUCTOR APPARATUS Dec 25, 2023 Abandoned
Array ( [id] => 19023064 [patent_doc_number] => 20240079235 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-07 [patent_title] => SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURING [patent_app_type] => utility [patent_app_number] => 18/500593 [patent_app_country] => US [patent_app_date] => 2023-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14521 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18500593 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/500593
SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURING Nov 1, 2023 Pending
Array ( [id] => 19204333 [patent_doc_number] => 20240176232 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE RESIN LAYER USING THE SAME AND COLOR FILTER [patent_app_type] => utility [patent_app_number] => 18/379860 [patent_app_country] => US [patent_app_date] => 2023-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10686 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18379860 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/379860
PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE RESIN LAYER USING THE SAME AND COLOR FILTER Oct 12, 2023 Pending
Array ( [id] => 18989362 [patent_doc_number] => 20240061331 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE RESIN COMPOSITION, RESIST FILM, PATTERN FORMING METHOD, METHOD FOR MANUFACTURING ELECTRONIC DEVICE, AND COMPOUND [patent_app_type] => utility [patent_app_number] => 18/485674 [patent_app_country] => US [patent_app_date] => 2023-10-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 34169 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 23 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18485674 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/485674
ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE RESIN COMPOSITION, RESIST FILM, PATTERN FORMING METHOD, METHOD FOR MANUFACTURING ELECTRONIC DEVICE, AND COMPOUND Oct 11, 2023 Pending
Array ( [id] => 19219503 [patent_doc_number] => 20240184207 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-06 [patent_title] => EUV PHOTORESIST AND UNDERLAYER ADHESION MODULATION [patent_app_type] => utility [patent_app_number] => 18/379106 [patent_app_country] => US [patent_app_date] => 2023-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7551 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18379106 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/379106
EUV PHOTORESIST AND UNDERLAYER ADHESION MODULATION Oct 10, 2023 Pending
Array ( [id] => 19878152 [patent_doc_number] => 20250110409 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-04-03 [patent_title] => SPIN-ON ADHESION PROMOTER COMPOSITION AND METHOD FOR HIGH NUMERICAL APERTURE EXTREME ULTRAVIOLET LITHOGRAPHY [patent_app_type] => utility [patent_app_number] => 18/479181 [patent_app_country] => US [patent_app_date] => 2023-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4719 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 18 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18479181 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/479181
SPIN-ON ADHESION PROMOTER COMPOSITION AND METHOD FOR HIGH NUMERICAL APERTURE EXTREME ULTRAVIOLET LITHOGRAPHY Oct 1, 2023 Pending
Array ( [id] => 19204336 [patent_doc_number] => 20240176235 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => RESIST COMPOSITION AND PATTERN FORMING PROCESS [patent_app_type] => utility [patent_app_number] => 18/371016 [patent_app_country] => US [patent_app_date] => 2023-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12939 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18371016 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/371016
RESIST COMPOSITION AND PATTERN FORMING PROCESS Sep 20, 2023 Pending
Array ( [id] => 19810805 [patent_doc_number] => 12242193 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-04 [patent_title] => Coating compositions for use with an overcoated photoresist [patent_app_type] => utility [patent_app_number] => 18/464695 [patent_app_country] => US [patent_app_date] => 2023-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7938 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18464695 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/464695
Coating compositions for use with an overcoated photoresist Sep 10, 2023 Issued
Array ( [id] => 19068940 [patent_doc_number] => 20240103366 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-28 [patent_title] => PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE RESIN LAYER USING THE SAME, AND COLOR FILTER [patent_app_type] => utility [patent_app_number] => 18/244370 [patent_app_country] => US [patent_app_date] => 2023-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8213 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18244370 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/244370
PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE RESIN LAYER USING THE SAME, AND COLOR FILTER Sep 10, 2023 Pending
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