Search

Charles S. Chang

Examiner (ID: 5463, Phone: (571)270-5024 , Office: P/2871 )

Most Active Art Unit
2871
Art Unit(s)
2881, 2883, 2871
Total Applications
1229
Issued Applications
934
Pending Applications
68
Abandoned Applications
244

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20255205 [patent_doc_number] => 12427539 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-30 [patent_title] => Method for coating products [patent_app_type] => utility [patent_app_number] => 19/187281 [patent_app_country] => US [patent_app_date] => 2025-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3739 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19187281 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/187281
Method for coating products Apr 22, 2025 Issued
Array ( [id] => 20149639 [patent_doc_number] => 20250249477 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-07 [patent_title] => GRAPHENE-COATED STEEL SHEET AND METHOD FOR PRODUCING SAME [patent_app_type] => utility [patent_app_number] => 19/174406 [patent_app_country] => US [patent_app_date] => 2025-04-09 [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] => -2 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19174406 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/174406
GRAPHENE-COATED STEEL SHEET AND METHOD FOR PRODUCING SAME Apr 8, 2025 Pending
Array ( [id] => 20599378 [patent_doc_number] => 20260077383 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-19 [patent_title] => APPARATUS AND METHOD FOR COATING [patent_app_type] => utility [patent_app_number] => 19/091115 [patent_app_country] => US [patent_app_date] => 2025-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7395 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19091115 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/091115
APPARATUS AND METHOD FOR COATING Mar 25, 2025 Pending
Array ( [id] => 20150899 [patent_doc_number] => 20250250737 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-08-07 [patent_title] => BARRIER COMPOSITIONS AND METHOD OF USE [patent_app_type] => utility [patent_app_number] => 19/045603 [patent_app_country] => US [patent_app_date] => 2025-02-05 [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] => -19 [patent_words_short_claim] => 19 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19045603 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/045603
BARRIER COMPOSITIONS AND METHOD OF USE Feb 4, 2025 Pending
Array ( [id] => 20542505 [patent_doc_number] => 20260049395 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-02-19 [patent_title] => AMORPHOUS CARBON COATING METHOD FOR RUBBER ROLLER [patent_app_type] => utility [patent_app_number] => 19/136226 [patent_app_country] => US [patent_app_date] => 2024-10-02 [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] => -14 [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] => 19136226 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/136226
AMORPHOUS CARBON COATING METHOD FOR RUBBER ROLLER Oct 1, 2024 Pending
Array ( [id] => 20628071 [patent_doc_number] => 20260092355 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-04-02 [patent_title] => COMPONENTS WITH THERMAL BARRIER COATINGS HAVING SOLID FILMS THEREON AND METHODS OF COATING THE SAME [patent_app_type] => utility [patent_app_number] => 18/899691 [patent_app_country] => US [patent_app_date] => 2024-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3773 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18899691 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/899691
COMPONENTS WITH THERMAL BARRIER COATINGS HAVING SOLID FILMS THEREON AND METHODS OF COATING THE SAME Sep 26, 2024 Pending
Array ( [id] => 20615311 [patent_doc_number] => 20260085399 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-26 [patent_title] => DEVICES AND METHODS FOR DEPOSITION [patent_app_type] => utility [patent_app_number] => 18/897436 [patent_app_country] => US [patent_app_date] => 2024-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1127 [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] => 18897436 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/897436
DEVICES AND METHODS FOR DEPOSITION Sep 25, 2024 Pending
Array ( [id] => 20634685 [patent_doc_number] => 12595555 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-04-07 [patent_title] => Toposelective vapor deposition using an inhibitor [patent_app_type] => utility [patent_app_number] => 18/891092 [patent_app_country] => US [patent_app_date] => 2024-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 8 [patent_no_of_words] => 2400 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18891092 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/891092
Toposelective vapor deposition using an inhibitor Sep 19, 2024 Issued
Array ( [id] => 19817115 [patent_doc_number] => 20250075322 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => METHOD OF MONITORING LIQUID RAW MATERIAL AND GAS SUPPLY DEVICE [patent_app_type] => utility [patent_app_number] => 18/822332 [patent_app_country] => US [patent_app_date] => 2024-09-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5414 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18822332 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/822332
METHOD OF MONITORING LIQUID RAW MATERIAL AND GAS SUPPLY DEVICE Sep 1, 2024 Pending
Array ( [id] => 19817107 [patent_doc_number] => 20250075314 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => FORMING FILMS WITH IMPROVED STEP COVERAGE [patent_app_type] => utility [patent_app_number] => 18/819824 [patent_app_country] => US [patent_app_date] => 2024-08-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8661 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18819824 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/819824
FORMING FILMS WITH IMPROVED STEP COVERAGE Aug 28, 2024 Pending
Array ( [id] => 19632785 [patent_doc_number] => 20240411234 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => METHOD FOR MACHINING A WORKPIECE [patent_app_type] => utility [patent_app_number] => 18/807439 [patent_app_country] => US [patent_app_date] => 2024-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6034 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18807439 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/807439
METHOD FOR MACHINING A WORKPIECE Aug 15, 2024 Pending
Array ( [id] => 19997269 [patent_doc_number] => 20250135491 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-01 [patent_title] => METHOD FOR COATING PRODUCTS [patent_app_type] => utility [patent_app_number] => 18/765990 [patent_app_country] => US [patent_app_date] => 2024-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3739 [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] => 18765990 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765990
Method for coating products Jul 7, 2024 Issued
Array ( [id] => 19997269 [patent_doc_number] => 20250135491 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-01 [patent_title] => METHOD FOR COATING PRODUCTS [patent_app_type] => utility [patent_app_number] => 18/765990 [patent_app_country] => US [patent_app_date] => 2024-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3739 [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] => 18765990 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765990
Method for coating products Jul 7, 2024 Issued
Array ( [id] => 19997269 [patent_doc_number] => 20250135491 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-01 [patent_title] => METHOD FOR COATING PRODUCTS [patent_app_type] => utility [patent_app_number] => 18/765990 [patent_app_country] => US [patent_app_date] => 2024-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3739 [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] => 18765990 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765990
Method for coating products Jul 7, 2024 Issued
Array ( [id] => 19997269 [patent_doc_number] => 20250135491 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-01 [patent_title] => METHOD FOR COATING PRODUCTS [patent_app_type] => utility [patent_app_number] => 18/765990 [patent_app_country] => US [patent_app_date] => 2024-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3739 [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] => 18765990 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765990
Method for coating products Jul 7, 2024 Issued
Array ( [id] => 19344116 [patent_doc_number] => 20240253079 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => SUBSTRATE PROCESSING METHOD [patent_app_type] => utility [patent_app_number] => 18/633581 [patent_app_country] => US [patent_app_date] => 2024-04-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19041 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 25 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18633581 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/633581
Substrate processing method Apr 11, 2024 Issued
Array ( [id] => 20730510 [patent_doc_number] => 12637760 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-26 [patent_title] => Treatment solution and treatment method [patent_app_type] => utility [patent_app_number] => 18/605574 [patent_app_country] => US [patent_app_date] => 2024-03-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 6565 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18605574 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/605574
Treatment solution and treatment method Mar 13, 2024 Issued
Array ( [id] => 20414428 [patent_doc_number] => 12497701 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Methods for making cutting tool inserts using protective coatings [patent_app_type] => utility [patent_app_number] => 18/430285 [patent_app_country] => US [patent_app_date] => 2024-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 18 [patent_no_of_words] => 3342 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 192 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18430285 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/430285
Methods for making cutting tool inserts using protective coatings Jan 31, 2024 Issued
Array ( [id] => 19318780 [patent_doc_number] => 20240240323 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-07-18 [patent_title] => VALVE PULSING TO CONTROL PRECURSOR PRESSURE [patent_app_type] => utility [patent_app_number] => 18/411900 [patent_app_country] => US [patent_app_date] => 2024-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4325 [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] => 18411900 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/411900
VALVE PULSING TO CONTROL PRECURSOR PRESSURE Jan 11, 2024 Pending
Array ( [id] => 19142635 [patent_doc_number] => 20240141486 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => APPARATUS FOR PROVIDING A GAS MIXTURE TO A REACTION CHAMBER AND METHOD OF USING SAME [patent_app_type] => utility [patent_app_number] => 18/410370 [patent_app_country] => US [patent_app_date] => 2024-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7800 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18410370 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/410370
APPARATUS FOR PROVIDING A GAS MIXTURE TO A REACTION CHAMBER AND METHOD OF USING SAME Jan 10, 2024 Pending
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