Search

Hanway Chang

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

Most Active Art Unit
2881
Art Unit(s)
2881, 4183, 2878
Total Applications
1116
Issued Applications
943
Pending Applications
84
Abandoned Applications
103

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19321373 [patent_doc_number] => 20240242920 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => MULTI CHARGED PARTICLE BEAM WRITING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/482093 [patent_app_country] => US [patent_app_date] => 2023-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7231 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18482093 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/482093
MULTI CHARGED PARTICLE BEAM WRITING APPARATUS Oct 5, 2023 Pending
Array ( [id] => 18901477 [patent_doc_number] => 20240016962 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => SYSTEM AND METHOD FOR SAFELY IRRADICATING PATHOGENS [patent_app_type] => utility [patent_app_number] => 18/126505 [patent_app_country] => US [patent_app_date] => 2023-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8140 [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] => 18126505 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/126505
System and method for safely eradicating pathogens Oct 4, 2023 Issued
Array ( [id] => 19796177 [patent_doc_number] => 12237144 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-25 [patent_title] => Apparatus using multiple beams of charged particles [patent_app_type] => utility [patent_app_number] => 18/477213 [patent_app_country] => US [patent_app_date] => 2023-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 22 [patent_no_of_words] => 7980 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18477213 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/477213
Apparatus using multiple beams of charged particles Sep 27, 2023 Issued
Array ( [id] => 19054644 [patent_doc_number] => 20240096613 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => ION GUIDE [patent_app_type] => utility [patent_app_number] => 18/467553 [patent_app_country] => US [patent_app_date] => 2023-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10092 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [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] => 18467553 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/467553
ION GUIDE Sep 13, 2023 Pending
Array ( [id] => 19333621 [patent_doc_number] => 20240248051 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-25 [patent_title] => WAFER MEASUREMENT APPARATUS AND OPERATING METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/458565 [patent_app_country] => US [patent_app_date] => 2023-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5386 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18458565 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/458565
WAFER MEASUREMENT APPARATUS AND OPERATING METHOD THEREOF Aug 29, 2023 Pending
Array ( [id] => 19009951 [patent_doc_number] => 20240074022 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => POSITION DETECTION APPARATUS, POSITION DETECTION METHOD AND NON-TRANSITORY COMPUTER-READABLE MEDIUM [patent_app_type] => utility [patent_app_number] => 18/458913 [patent_app_country] => US [patent_app_date] => 2023-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12450 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18458913 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/458913
POSITION DETECTION APPARATUS, POSITION DETECTION METHOD AND NON-TRANSITORY COMPUTER-READABLE MEDIUM Aug 29, 2023 Pending
Array ( [id] => 19820906 [patent_doc_number] => 20250079113 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => Ion Source Containing a Sputter Target [patent_app_type] => utility [patent_app_number] => 18/238884 [patent_app_country] => US [patent_app_date] => 2023-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5000 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18238884 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/238884
Ion Source Containing a Sputter Target Aug 27, 2023 Pending
Array ( [id] => 19803917 [patent_doc_number] => 20250069842 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-27 [patent_title] => TECHNIQUES FOR WAVEFORM DETECTION OF PERIODIC SIGNALS USING VOLTAGE CONTRAST [patent_app_type] => utility [patent_app_number] => 18/456263 [patent_app_country] => US [patent_app_date] => 2023-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8096 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18456263 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/456263
TECHNIQUES FOR WAVEFORM DETECTION OF PERIODIC SIGNALS USING VOLTAGE CONTRAST Aug 24, 2023 Pending
Array ( [id] => 19007668 [patent_doc_number] => 20240071739 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => GEOMETRIES FOR RADIO-FREQUENCY MULTIPOLE ION GUIDES [patent_app_type] => utility [patent_app_number] => 18/455061 [patent_app_country] => US [patent_app_date] => 2023-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2003 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 18455061 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/455061
GEOMETRIES FOR RADIO-FREQUENCY MULTIPOLE ION GUIDES Aug 23, 2023 Pending
Array ( [id] => 18812441 [patent_doc_number] => 20230386778 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => REPELLENT ELECTRODE FOR ELECTRON REPELLING [patent_app_type] => utility [patent_app_number] => 18/448026 [patent_app_country] => US [patent_app_date] => 2023-08-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5286 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18448026 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/448026
Repellent electrode for electron repelling Aug 9, 2023 Issued
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] => 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 Issued
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 Issued
Array ( [id] => 20689008 [patent_doc_number] => 12619156 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-05 [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] => 23 [patent_figures_cnt] => 23 [patent_no_of_words] => 3558 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 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 Issued
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] => 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] => 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 Issued
Array ( [id] => 20851954 [patent_doc_number] => 12688995 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-21 [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] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 1103 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 245 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [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 Issued
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