Search

Yean Hsi Chang

Examiner (ID: 16947)

Most Active Art Unit
2835
Art Unit(s)
2835
Total Applications
607
Issued Applications
482
Pending Applications
15
Abandoned Applications
110

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17743315 [patent_doc_number] => 11391374 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-07-19 [patent_title] => Dual ring stuffing box [patent_app_type] => utility [patent_app_number] => 17/213854 [patent_app_country] => US [patent_app_date] => 2021-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 6947 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17213854 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/213854
Dual ring stuffing box Mar 25, 2021 Issued
Array ( [id] => 19292282 [patent_doc_number] => 12031632 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-07-09 [patent_title] => Seal structure [patent_app_type] => utility [patent_app_number] => 17/911164 [patent_app_country] => US [patent_app_date] => 2021-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 16828 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 289 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17911164 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/911164
Seal structure Mar 25, 2021 Issued
Array ( [id] => 19166458 [patent_doc_number] => 11982353 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-14 [patent_title] => Device with a housing having housing parts [patent_app_type] => utility [patent_app_number] => 17/630452 [patent_app_country] => US [patent_app_date] => 2021-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3807 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17630452 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/630452
Device with a housing having housing parts Mar 23, 2021 Issued
Array ( [id] => 18179496 [patent_doc_number] => 20230040225 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-09 [patent_title] => PHOTOCURABLE COMPOSITION, CURED BODY, GASKET IN WHICH CURED BODY IS USED, WATERTIGHT STRUCTURE, AND METHOD FOR MANUFACTURING GASKET [patent_app_type] => utility [patent_app_number] => 17/791518 [patent_app_country] => US [patent_app_date] => 2021-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12551 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [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] => 17791518 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/791518
Photocurable composition, cured body, gasket in which cured body is used, watertight structure, and method for manufacturing gasket Mar 23, 2021 Issued
Array ( [id] => 19609337 [patent_doc_number] => 12158207 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-03 [patent_title] => Gasket [patent_app_type] => utility [patent_app_number] => 17/912475 [patent_app_country] => US [patent_app_date] => 2021-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 15 [patent_no_of_words] => 7604 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17912475 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/912475
Gasket Mar 17, 2021 Issued
Array ( [id] => 19702015 [patent_doc_number] => 12196031 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-14 [patent_title] => Insulating and sealing system for joints of joinery construction elements, especially windows and exterior doors [patent_app_type] => utility [patent_app_number] => 17/205306 [patent_app_country] => US [patent_app_date] => 2021-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 4960 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 294 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17205306 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/205306
Insulating and sealing system for joints of joinery construction elements, especially windows and exterior doors Mar 17, 2021 Issued
Array ( [id] => 18361023 [patent_doc_number] => 20230142614 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => VEHICULAR MOLDING [patent_app_type] => utility [patent_app_number] => 17/914825 [patent_app_country] => US [patent_app_date] => 2021-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7188 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17914825 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/914825
VEHICULAR MOLDING Mar 17, 2021 Abandoned
Array ( [id] => 18658585 [patent_doc_number] => 20230304581 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => RUBBER-METAL LAMINATE AND GASKET [patent_app_type] => utility [patent_app_number] => 17/912292 [patent_app_country] => US [patent_app_date] => 2021-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8954 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17912292 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/912292
RUBBER-METAL LAMINATE AND GASKET Mar 9, 2021 Pending
Array ( [id] => 18437038 [patent_doc_number] => 20230184332 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-15 [patent_title] => PISTON RING ARRANGEMENT, PISTON COMPRESSOR AND METHOD FOR SEALING A COMPRESSION CHAMBER [patent_app_type] => utility [patent_app_number] => 17/908569 [patent_app_country] => US [patent_app_date] => 2021-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6417 [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] => 17908569 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/908569
Piston ring arrangement, piston compressor and method for sealing a compression chamber Mar 2, 2021 Issued
Array ( [id] => 18320505 [patent_doc_number] => 20230118633 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-20 [patent_title] => SLIDING COMPONENT [patent_app_type] => utility [patent_app_number] => 17/908515 [patent_app_country] => US [patent_app_date] => 2021-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7329 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17908515 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/908515
Sliding component Mar 1, 2021 Issued
Array ( [id] => 19609340 [patent_doc_number] => 12158210 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-03 [patent_title] => Self-lubricating, wear resistant piston seal [patent_app_type] => utility [patent_app_number] => 17/182598 [patent_app_country] => US [patent_app_date] => 2021-02-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2251 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17182598 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/182598
Self-lubricating, wear resistant piston seal Feb 22, 2021 Issued
Array ( [id] => 17053136 [patent_doc_number] => 20210262570 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-08-26 [patent_title] => UNIVERSAL GASKET [patent_app_type] => utility [patent_app_number] => 17/180386 [patent_app_country] => US [patent_app_date] => 2021-02-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4017 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 17180386 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/180386
UNIVERSAL GASKET Feb 18, 2021 Abandoned
Array ( [id] => 18241227 [patent_doc_number] => 20230073538 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-09 [patent_title] => GASKET [patent_app_type] => utility [patent_app_number] => 17/799015 [patent_app_country] => US [patent_app_date] => 2021-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3652 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17799015 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/799015
GASKET Feb 2, 2021 Pending
Array ( [id] => 17008057 [patent_doc_number] => 20210239218 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-08-05 [patent_title] => ROTARY SEALS [patent_app_type] => utility [patent_app_number] => 17/164978 [patent_app_country] => US [patent_app_date] => 2021-02-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3304 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17164978 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/164978
Rotary seals Feb 1, 2021 Issued
Array ( [id] => 18749091 [patent_doc_number] => 11808394 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-11-07 [patent_title] => Seal system [patent_app_type] => utility [patent_app_number] => 17/164005 [patent_app_country] => US [patent_app_date] => 2021-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 24 [patent_no_of_words] => 5813 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17164005 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/164005
Seal system Jan 31, 2021 Issued
Array ( [id] => 19702304 [patent_doc_number] => 12196321 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-01-14 [patent_title] => Self-suctioning mechanical seal assembly [patent_app_type] => utility [patent_app_number] => 17/911731 [patent_app_country] => US [patent_app_date] => 2021-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3102 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17911731 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/911731
Self-suctioning mechanical seal assembly Jan 25, 2021 Issued
Array ( [id] => 16825249 [patent_doc_number] => 20210140542 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-13 [patent_title] => PISTON SEAL WITH SOLID LUBRICANT APPLICATOR [patent_app_type] => utility [patent_app_number] => 17/155674 [patent_app_country] => US [patent_app_date] => 2021-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7740 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17155674 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/155674
Piston seal with solid lubricant applicator Jan 21, 2021 Issued
Array ( [id] => 17750491 [patent_doc_number] => 20220228696 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-21 [patent_title] => APPARATUS AND METHOD FOR SEALING AN END CAP ON AN INSULATED PIPE SYSTEM [patent_app_type] => utility [patent_app_number] => 17/155245 [patent_app_country] => US [patent_app_date] => 2021-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2767 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17155245 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/155245
Apparatus and method for sealing an end cap on an insulated pipe system Jan 21, 2021 Issued
Array ( [id] => 19227395 [patent_doc_number] => 12007029 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-11 [patent_title] => Component assembly for a motor vehicle [patent_app_type] => utility [patent_app_number] => 17/149286 [patent_app_country] => US [patent_app_date] => 2021-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 7736 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 250 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17149286 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/149286
Component assembly for a motor vehicle Jan 13, 2021 Issued
Array ( [id] => 18307596 [patent_doc_number] => 20230111496 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-13 [patent_title] => HOUSING SEAL, METHOD FOR THE AUTOMATED APPLICATION OF A HOUSING SEAL, AND HOUSING COMPRISING A HOUSING SEAL [patent_app_type] => utility [patent_app_number] => 17/792274 [patent_app_country] => US [patent_app_date] => 2021-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9398 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17792274 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/792274
Housing seal, method for the automated application of a housing seal, and housing comprising a housing seal Jan 12, 2021 Issued
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