Search

Kai J. Chang

Examiner (ID: 16715, Phone: (571)270-5448 , Office: P/2468 )

Most Active Art Unit
2468
Art Unit(s)
2468
Total Applications
459
Issued Applications
326
Pending Applications
38
Abandoned Applications
108

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19685843 [patent_doc_number] => 20250004388 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [patent_title] => EXPOSURE APPARATUS, CONTROL METHOD, AND METHOD OF MANUFACTURING ARTICLE [patent_app_type] => utility [patent_app_number] => 18/746356 [patent_app_country] => US [patent_app_date] => 2024-06-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9042 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18746356 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/746356
EXPOSURE APPARATUS, CONTROL METHOD, AND METHOD OF MANUFACTURING ARTICLE Jun 17, 2024 Pending
Array ( [id] => 19450606 [patent_doc_number] => 20240310736 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => FORMING MULTIPLE AERIAL IMAGES IN A SINGLE LITHOGRAPHY EXPOSURE PASS [patent_app_type] => utility [patent_app_number] => 18/657905 [patent_app_country] => US [patent_app_date] => 2024-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12367 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 18657905 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/657905
FORMING MULTIPLE AERIAL IMAGES IN A SINGLE LITHOGRAPHY EXPOSURE PASS May 7, 2024 Pending
Array ( [id] => 20441798 [patent_doc_number] => 12512640 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-30 [patent_title] => Laser system, pulse laser light generating method, and electronic device manufacturing method [patent_app_type] => utility [patent_app_number] => 18/658286 [patent_app_country] => US [patent_app_date] => 2024-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 6817 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 320 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18658286 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/658286
Laser system, pulse laser light generating method, and electronic device manufacturing method May 7, 2024 Issued
Array ( [id] => 19450606 [patent_doc_number] => 20240310736 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => FORMING MULTIPLE AERIAL IMAGES IN A SINGLE LITHOGRAPHY EXPOSURE PASS [patent_app_type] => utility [patent_app_number] => 18/657905 [patent_app_country] => US [patent_app_date] => 2024-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12367 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 18657905 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/657905
FORMING MULTIPLE AERIAL IMAGES IN A SINGLE LITHOGRAPHY EXPOSURE PASS May 7, 2024 Pending
Array ( [id] => 19382692 [patent_doc_number] => 20240272562 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => SUBSTRATE TREATMENT APPARATUS [patent_app_type] => utility [patent_app_number] => 18/644211 [patent_app_country] => US [patent_app_date] => 2024-04-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7392 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18644211 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/644211
SUBSTRATE TREATMENT APPARATUS Apr 23, 2024 Pending
Array ( [id] => 20310460 [patent_doc_number] => 20250328089 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-23 [patent_title] => RADIATION SOURCE APPARATUS AND METHOD FOR OPERATING THE SAME [patent_app_type] => utility [patent_app_number] => 18/638982 [patent_app_country] => US [patent_app_date] => 2024-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2231 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 62 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18638982 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/638982
RADIATION SOURCE APPARATUS AND METHOD FOR OPERATING THE SAME Apr 17, 2024 Pending
Array ( [id] => 19529866 [patent_doc_number] => 20240353768 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => MEASURING DEVICE AND METHOD FOR INSPECTING PHOTOMASKS INTENDED FOR EUV MICROLITHOGRAPHY [patent_app_type] => utility [patent_app_number] => 18/638890 [patent_app_country] => US [patent_app_date] => 2024-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5633 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18638890 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/638890
MEASURING DEVICE AND METHOD FOR INSPECTING PHOTOMASKS INTENDED FOR EUV MICROLITHOGRAPHY Apr 17, 2024 Pending
Array ( [id] => 19513808 [patent_doc_number] => 20240345494 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => TEMPERATURE ADJUSTMENT APPARATUS, LITHOGRAPHY APPARATUS, AND ARTICLE MANUFACTURING METHOD [patent_app_type] => utility [patent_app_number] => 18/633359 [patent_app_country] => US [patent_app_date] => 2024-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7920 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18633359 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/633359
TEMPERATURE ADJUSTMENT APPARATUS, LITHOGRAPHY APPARATUS, AND ARTICLE MANUFACTURING METHOD Apr 10, 2024 Pending
Array ( [id] => 19513808 [patent_doc_number] => 20240345494 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-17 [patent_title] => TEMPERATURE ADJUSTMENT APPARATUS, LITHOGRAPHY APPARATUS, AND ARTICLE MANUFACTURING METHOD [patent_app_type] => utility [patent_app_number] => 18/633359 [patent_app_country] => US [patent_app_date] => 2024-04-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7920 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18633359 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/633359
TEMPERATURE ADJUSTMENT APPARATUS, LITHOGRAPHY APPARATUS, AND ARTICLE MANUFACTURING METHOD Apr 10, 2024 Pending
Array ( [id] => 19349793 [patent_doc_number] => 20240258757 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => PULSE STRETCHER AND ELECTRONIC DEVICE MANUFACTURING METHOD [patent_app_type] => utility [patent_app_number] => 18/631098 [patent_app_country] => US [patent_app_date] => 2024-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13010 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18631098 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/631098
PULSE STRETCHER AND ELECTRONIC DEVICE MANUFACTURING METHOD Apr 9, 2024 Pending
Array ( [id] => 19349793 [patent_doc_number] => 20240258757 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => PULSE STRETCHER AND ELECTRONIC DEVICE MANUFACTURING METHOD [patent_app_type] => utility [patent_app_number] => 18/631098 [patent_app_country] => US [patent_app_date] => 2024-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13010 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18631098 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/631098
PULSE STRETCHER AND ELECTRONIC DEVICE MANUFACTURING METHOD Apr 9, 2024 Pending
Array ( [id] => 19319910 [patent_doc_number] => 20240241454 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => METROLOGY METHOD AND SYSTEM AND LITHOGRAPHIC SYSTEM [patent_app_type] => utility [patent_app_number] => 18/619839 [patent_app_country] => US [patent_app_date] => 2024-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19533 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18619839 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/619839
METROLOGY METHOD AND SYSTEM AND LITHOGRAPHIC SYSTEM Mar 27, 2024 Pending
Array ( [id] => 20281235 [patent_doc_number] => 20250306477 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-02 [patent_title] => SINGLE GRAB PUPIL LANDSCAPE VIA OUTSIDE THE OBJECTIVE LENS BROADBAND ILLUMINATION [patent_app_type] => utility [patent_app_number] => 18/618280 [patent_app_country] => US [patent_app_date] => 2024-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4425 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18618280 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/618280
SINGLE GRAB PUPIL LANDSCAPE VIA OUTSIDE THE OBJECTIVE LENS BROADBAND ILLUMINATION Mar 26, 2024 Pending
Array ( [id] => 19434252 [patent_doc_number] => 20240302750 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-12 [patent_title] => CORRECTION METHOD OF MULTI-BEAM EXPOSURE DEVICE [patent_app_type] => utility [patent_app_number] => 18/597732 [patent_app_country] => US [patent_app_date] => 2024-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7714 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18597732 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/597732
CORRECTION METHOD OF MULTI-BEAM EXPOSURE DEVICE Mar 5, 2024 Pending
Array ( [id] => 20209651 [patent_doc_number] => 20250279371 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-04 [patent_title] => FIDUCIAL DESIGNS AND RELATED METHODS FOR WIRE BOND PATTERN RECOGNITION [patent_app_type] => utility [patent_app_number] => 18/594145 [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] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18594145 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/594145
FIDUCIAL DESIGNS AND RELATED METHODS FOR WIRE BOND PATTERN RECOGNITION Mar 3, 2024 Pending
Array ( [id] => 19174132 [patent_doc_number] => 20240160106 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-16 [patent_title] => METHOD AND APPARATUS FOR CONTROLLING DROPLET IN EXTREME ULTRAVIOLET LIGHT SOURCE [patent_app_type] => utility [patent_app_number] => 18/421783 [patent_app_country] => US [patent_app_date] => 2024-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11251 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18421783 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/421783
METHOD AND APPARATUS FOR CONTROLLING DROPLET IN EXTREME ULTRAVIOLET LIGHT SOURCE Jan 23, 2024 Pending
Array ( [id] => 19773446 [patent_doc_number] => 20250054872 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-13 [patent_title] => OVERLAY METROLOGY TARGET FOR DIE-TO-WAFER OVERLAY METROLOGY [patent_app_type] => utility [patent_app_number] => 18/421454 [patent_app_country] => US [patent_app_date] => 2024-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7841 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18421454 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/421454
OVERLAY METROLOGY TARGET FOR DIE-TO-WAFER OVERLAY METROLOGY Jan 23, 2024 Pending
Array ( [id] => 19481506 [patent_doc_number] => 20240329548 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-03 [patent_title] => SYSTEMS AND METHODS FOR THERMALLY STABLE MOUNTING OF OPTICAL COLUMNS [patent_app_type] => utility [patent_app_number] => 18/415586 [patent_app_country] => US [patent_app_date] => 2024-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14873 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18415586 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/415586
SYSTEMS AND METHODS FOR THERMALLY STABLE MOUNTING OF OPTICAL COLUMNS Jan 16, 2024 Pending
Array ( [id] => 19333986 [patent_doc_number] => 20240248416 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => TILT STAGE, EXTREME ULTRAVIOLET LIGHT GENERATION APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD [patent_app_type] => utility [patent_app_number] => 18/537898 [patent_app_country] => US [patent_app_date] => 2023-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10501 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18537898 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/537898
TILT STAGE, EXTREME ULTRAVIOLET LIGHT GENERATION APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD Dec 12, 2023 Pending
Array ( [id] => 19333986 [patent_doc_number] => 20240248416 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => TILT STAGE, EXTREME ULTRAVIOLET LIGHT GENERATION APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD [patent_app_type] => utility [patent_app_number] => 18/537898 [patent_app_country] => US [patent_app_date] => 2023-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10501 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18537898 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/537898
TILT STAGE, EXTREME ULTRAVIOLET LIGHT GENERATION APPARATUS, AND ELECTRONIC DEVICE MANUFACTURING METHOD Dec 12, 2023 Pending
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