Search

Hanway Chang

Examiner (ID: 18322, Phone: (571)270-5766 , Office: P/2881 )

Most Active Art Unit
2881
Art Unit(s)
2881, 4183
Total Applications
1088
Issued Applications
928
Pending Applications
97
Abandoned Applications
98

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19739585 [patent_doc_number] => 12216413 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-04 [patent_title] => Device and method to remove debris from an extreme ultraviolet (EUV) lithography system [patent_app_type] => utility [patent_app_number] => 18/231170 [patent_app_country] => US [patent_app_date] => 2023-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 8199 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18231170 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/231170
Device and method to remove debris from an extreme ultraviolet (EUV) lithography system Aug 6, 2023 Issued
Array ( [id] => 18787600 [patent_doc_number] => 20230375938 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-23 [patent_title] => EUV PHOTOLITHOGRAPHY SYSTEM FUEL SOURCE AND METHODS OF OPERATING THE SAME [patent_app_type] => utility [patent_app_number] => 18/366092 [patent_app_country] => US [patent_app_date] => 2023-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7004 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18366092 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/366092
EUV photolithography system fuel source and methods of operating the same Aug 6, 2023 Issued
Array ( [id] => 19757998 [patent_doc_number] => 20250046563 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => MAGNETIC FOCUSING DEVICE LOW ENERGY ION BEAMS [patent_app_type] => utility [patent_app_number] => 18/362429 [patent_app_country] => US [patent_app_date] => 2023-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9255 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 296 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18362429 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/362429
MAGNETIC FOCUSING DEVICE LOW ENERGY ION BEAMS Jul 30, 2023 Pending
Array ( [id] => 19757998 [patent_doc_number] => 20250046563 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => MAGNETIC FOCUSING DEVICE LOW ENERGY ION BEAMS [patent_app_type] => utility [patent_app_number] => 18/362429 [patent_app_country] => US [patent_app_date] => 2023-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9255 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 296 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18362429 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/362429
MAGNETIC FOCUSING DEVICE LOW ENERGY ION BEAMS Jul 30, 2023 Pending
Array ( [id] => 19757996 [patent_doc_number] => 20250046561 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => ION GENERATORS OF ION IMPLANTERS WITH MOVABLE REPELLER [patent_app_type] => utility [patent_app_number] => 18/362897 [patent_app_country] => US [patent_app_date] => 2023-07-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7454 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18362897 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/362897
ION GENERATORS OF ION IMPLANTERS WITH MOVABLE REPELLER Jul 30, 2023 Pending
Array ( [id] => 19749400 [patent_doc_number] => 20250037965 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => METHOD OF DETERMINING A BEAM CONVERGENCE OF A CHARGED PARTICLE BEAM, AND CHARGED PARTICLE BEAM SYSTEM [patent_app_type] => utility [patent_app_number] => 18/225283 [patent_app_country] => US [patent_app_date] => 2023-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11274 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18225283 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/225283
METHOD OF DETERMINING A BEAM CONVERGENCE OF A CHARGED PARTICLE BEAM, AND CHARGED PARTICLE BEAM SYSTEM Jul 23, 2023 Pending
Array ( [id] => 19749400 [patent_doc_number] => 20250037965 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => METHOD OF DETERMINING A BEAM CONVERGENCE OF A CHARGED PARTICLE BEAM, AND CHARGED PARTICLE BEAM SYSTEM [patent_app_type] => utility [patent_app_number] => 18/225283 [patent_app_country] => US [patent_app_date] => 2023-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11274 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18225283 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/225283
METHOD OF DETERMINING A BEAM CONVERGENCE OF A CHARGED PARTICLE BEAM, AND CHARGED PARTICLE BEAM SYSTEM Jul 23, 2023 Pending
Array ( [id] => 19204348 [patent_doc_number] => 20240176247 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => EUV LIGHT UNIFORMITY CONTROL APPARATUS, EUV EXPOSURE EQUIPMENT INCLUDING THE SAME, AND METHOD OF CONTROLLING EUV LIGHT UNIFORMITY BY USING THE CONTROL APPARATUS [patent_app_type] => utility [patent_app_number] => 18/216142 [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] => 8713 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18216142 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/216142
EUV LIGHT UNIFORMITY CONTROL APPARATUS, EUV EXPOSURE EQUIPMENT INCLUDING THE SAME, AND METHOD OF CONTROLLING EUV LIGHT UNIFORMITY BY USING THE CONTROL APPARATUS Jun 28, 2023 Pending
Array ( [id] => 19204348 [patent_doc_number] => 20240176247 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => EUV LIGHT UNIFORMITY CONTROL APPARATUS, EUV EXPOSURE EQUIPMENT INCLUDING THE SAME, AND METHOD OF CONTROLLING EUV LIGHT UNIFORMITY BY USING THE CONTROL APPARATUS [patent_app_type] => utility [patent_app_number] => 18/216142 [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] => 8713 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18216142 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/216142
EUV LIGHT UNIFORMITY CONTROL APPARATUS, EUV EXPOSURE EQUIPMENT INCLUDING THE SAME, AND METHOD OF CONTROLLING EUV LIGHT UNIFORMITY BY USING THE CONTROL APPARATUS Jun 28, 2023 Pending
Array ( [id] => 19102649 [patent_doc_number] => 20240121877 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-11 [patent_title] => EXTREME ULTRAVIOLET LIGHT SOURCE DEVICE [patent_app_type] => utility [patent_app_number] => 18/338789 [patent_app_country] => US [patent_app_date] => 2023-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6309 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18338789 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/338789
EXTREME ULTRAVIOLET LIGHT SOURCE DEVICE Jun 20, 2023 Pending
Array ( [id] => 19492568 [patent_doc_number] => 12111272 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-08 [patent_title] => System for estimating the occurrence of defects, and computer-readable medium [patent_app_type] => utility [patent_app_number] => 18/212346 [patent_app_country] => US [patent_app_date] => 2023-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 22 [patent_no_of_words] => 9544 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18212346 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/212346
System for estimating the occurrence of defects, and computer-readable medium Jun 20, 2023 Issued
Array ( [id] => 19644562 [patent_doc_number] => 20240419082 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => LITHOGRAPHY SYSTEM AND METHODS [patent_app_type] => utility [patent_app_number] => 18/336859 [patent_app_country] => US [patent_app_date] => 2023-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7581 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18336859 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/336859
LITHOGRAPHY SYSTEM AND METHODS Jun 15, 2023 Pending
Array ( [id] => 19086079 [patent_doc_number] => 20240112880 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-04 [patent_title] => METHOD OF PROCESSING ION BEAM BASED ON OPTICAL MICROSCOPY IMAGING [patent_app_type] => utility [patent_app_number] => 18/334995 [patent_app_country] => US [patent_app_date] => 2023-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6079 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18334995 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/334995
METHOD OF PROCESSING ION BEAM BASED ON OPTICAL MICROSCOPY IMAGING Jun 13, 2023 Pending
Array ( [id] => 19634450 [patent_doc_number] => 20240412899 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => SELF-CENTERING VOLTAGE STANDOFF [patent_app_type] => utility [patent_app_number] => 18/206907 [patent_app_country] => US [patent_app_date] => 2023-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6205 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18206907 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/206907
SELF-CENTERING VOLTAGE STANDOFF Jun 6, 2023 Pending
Array ( [id] => 19634450 [patent_doc_number] => 20240412899 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => SELF-CENTERING VOLTAGE STANDOFF [patent_app_type] => utility [patent_app_number] => 18/206907 [patent_app_country] => US [patent_app_date] => 2023-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6205 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18206907 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/206907
SELF-CENTERING VOLTAGE STANDOFF Jun 6, 2023 Pending
Array ( [id] => 18696275 [patent_doc_number] => 20230326711 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => SYSTEM AND METHOD FOR GENERATING AND ANALYZING ROUGHNESS MEASUREMENTS [patent_app_type] => utility [patent_app_number] => 18/329325 [patent_app_country] => US [patent_app_date] => 2023-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20314 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18329325 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/329325
SYSTEM AND METHOD FOR GENERATING AND ANALYZING ROUGHNESS MEASUREMENTS Jun 4, 2023 Abandoned
Array ( [id] => 18696275 [patent_doc_number] => 20230326711 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => SYSTEM AND METHOD FOR GENERATING AND ANALYZING ROUGHNESS MEASUREMENTS [patent_app_type] => utility [patent_app_number] => 18/329325 [patent_app_country] => US [patent_app_date] => 2023-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20314 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18329325 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/329325
SYSTEM AND METHOD FOR GENERATING AND ANALYZING ROUGHNESS MEASUREMENTS Jun 4, 2023 Abandoned
Array ( [id] => 18989197 [patent_doc_number] => 20240061166 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => HIGH DENSITY ENERGY DIRECTING DEVICE [patent_app_type] => utility [patent_app_number] => 18/199483 [patent_app_country] => US [patent_app_date] => 2023-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15443 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18199483 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/199483
High density energy directing device May 18, 2023 Issued
Array ( [id] => 19559810 [patent_doc_number] => 20240371602 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-07 [patent_title] => Heated Plasma Flood Gun Sweeper [patent_app_type] => utility [patent_app_number] => 18/143666 [patent_app_country] => US [patent_app_date] => 2023-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3631 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18143666 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/143666
Heated Plasma Flood Gun Sweeper May 4, 2023 Pending
Array ( [id] => 18598726 [patent_doc_number] => 20230273525 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-31 [patent_title] => METHOD AND APPARATUS FOR MITIGATING CONTAMINATION [patent_app_type] => utility [patent_app_number] => 18/142500 [patent_app_country] => US [patent_app_date] => 2023-05-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7327 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18142500 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/142500
Method and apparatus for mitigating contamination May 1, 2023 Issued
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