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] => 18399898 [patent_doc_number] => 11662027 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-30 [patent_title] => Double seal lubricated packing gland and rotating sleeve [patent_app_type] => utility [patent_app_number] => 17/507150 [patent_app_country] => US [patent_app_date] => 2021-10-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 7588 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 249 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17507150 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/507150
Double seal lubricated packing gland and rotating sleeve Oct 20, 2021 Issued
Array ( [id] => 17386553 [patent_doc_number] => 20220034405 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-03 [patent_title] => SEALING RING MADE OF A HIGH-PERFORMANCE THERMOPLASTIC MATERIAL AND LIQUID SILICONE [patent_app_type] => utility [patent_app_number] => 17/500371 [patent_app_country] => US [patent_app_date] => 2021-10-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3373 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 89 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17500371 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/500371
Sealing ring made of a high-performance thermoplastic material and liquid silicone Oct 12, 2021 Issued
Array ( [id] => 17521174 [patent_doc_number] => 20220107023 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-07 [patent_title] => CENTRIFUGAL HYDRAULIC SEAL [patent_app_type] => utility [patent_app_number] => 17/495090 [patent_app_country] => US [patent_app_date] => 2021-10-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3886 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17495090 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/495090
Centrifugal hydraulic seal Oct 5, 2021 Issued
Array ( [id] => 19068176 [patent_doc_number] => 20240102602 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-28 [patent_title] => METHOD FOR WELDING AND ASSEMBLING A COMPONENT [patent_app_type] => utility [patent_app_number] => 18/274822 [patent_app_country] => US [patent_app_date] => 2021-10-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 851 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [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] => 18274822 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/274822
METHOD FOR WELDING AND ASSEMBLING A COMPONENT Oct 4, 2021 Abandoned
Array ( [id] => 19884774 [patent_doc_number] => 12270473 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-08 [patent_title] => Coupling structure [patent_app_type] => utility [patent_app_number] => 18/247941 [patent_app_country] => US [patent_app_date] => 2021-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 3816 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18247941 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/247941
Coupling structure Oct 3, 2021 Issued
Array ( [id] => 18296340 [patent_doc_number] => 20230106026 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-06 [patent_title] => STEPPED GASKETS FOR THERMAL INTERFACES AND METHODS OF MAKING AND USING THEREOF [patent_app_type] => utility [patent_app_number] => 17/492349 [patent_app_country] => US [patent_app_date] => 2021-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 28671 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -45 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17492349 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/492349
STEPPED GASKETS FOR THERMAL INTERFACES AND METHODS OF MAKING AND USING THEREOF Sep 30, 2021 Pending
Array ( [id] => 18888528 [patent_doc_number] => 11867295 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-09 [patent_title] => Sliding member [patent_app_type] => utility [patent_app_number] => 18/027777 [patent_app_country] => US [patent_app_date] => 2021-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4344 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18027777 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/027777
Sliding member Sep 29, 2021 Issued
Array ( [id] => 18888527 [patent_doc_number] => 11867294 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-09 [patent_title] => Sliding member [patent_app_type] => utility [patent_app_number] => 18/027702 [patent_app_country] => US [patent_app_date] => 2021-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5520 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18027702 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/027702
Sliding member Sep 29, 2021 Issued
Array ( [id] => 18754918 [patent_doc_number] => 20230358344 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-09 [patent_title] => A GUARD SENSOR DEVICE FOR USE WITH A CABLE, PIPE OR WIRE TRANSIT, AND A METHOD OF GUARDING A CABLE, PIPE OR WIRE TRANSIT [patent_app_type] => utility [patent_app_number] => 18/029867 [patent_app_country] => US [patent_app_date] => 2021-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8229 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18029867 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/029867
A GUARD SENSOR DEVICE FOR USE WITH A CABLE, PIPE OR WIRE TRANSIT, AND A METHOD OF GUARDING A CABLE, PIPE OR WIRE TRANSIT Sep 20, 2021 Pending
Array ( [id] => 18329914 [patent_doc_number] => 11635145 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-04-25 [patent_title] => Hydraulic components and methods of manufacturing [patent_app_type] => utility [patent_app_number] => 17/478658 [patent_app_country] => US [patent_app_date] => 2021-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 4444 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17478658 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/478658
Hydraulic components and methods of manufacturing Sep 16, 2021 Issued
Array ( [id] => 17461095 [patent_doc_number] => 20220074400 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-10 [patent_title] => COMPOSITE STRUCTURES FOR RECIPROCATING GAS COMPRESSOR SYSTEMS [patent_app_type] => utility [patent_app_number] => 17/447238 [patent_app_country] => US [patent_app_date] => 2021-09-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6299 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -20 [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] => 17447238 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/447238
Composite structures for reciprocating gas compressor systems Sep 8, 2021 Issued
Array ( [id] => 17429100 [patent_doc_number] => 20220056808 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-24 [patent_title] => MAIN SEAL ASSEMBLY [patent_app_type] => utility [patent_app_number] => 17/407934 [patent_app_country] => US [patent_app_date] => 2021-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5107 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17407934 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/407934
MAIN SEAL ASSEMBLY Aug 19, 2021 Abandoned
Array ( [id] => 19594554 [patent_doc_number] => 12152384 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-11-26 [patent_title] => Sealing profile and method for producing a plurality of sealing profiles [patent_app_type] => utility [patent_app_number] => 18/042767 [patent_app_country] => US [patent_app_date] => 2021-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 8 [patent_no_of_words] => 4401 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 339 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18042767 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/042767
Sealing profile and method for producing a plurality of sealing profiles Aug 19, 2021 Issued
Array ( [id] => 18478898 [patent_doc_number] => 11692631 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-07-04 [patent_title] => Automatic wiper for seal stack assembly [patent_app_type] => utility [patent_app_number] => 17/445341 [patent_app_country] => US [patent_app_date] => 2021-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 6046 [patent_no_of_claims] => 18 [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] => 17445341 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/445341
Automatic wiper for seal stack assembly Aug 17, 2021 Issued
Array ( [id] => 18621157 [patent_doc_number] => 11754185 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-09-12 [patent_title] => Metal O-ring seal [patent_app_type] => utility [patent_app_number] => 17/405630 [patent_app_country] => US [patent_app_date] => 2021-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 3081 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17405630 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/405630
Metal O-ring seal Aug 17, 2021 Issued
Array ( [id] => 18399897 [patent_doc_number] => 11662026 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-30 [patent_title] => Seal with surface indents [patent_app_type] => utility [patent_app_number] => 17/403062 [patent_app_country] => US [patent_app_date] => 2021-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 18 [patent_no_of_words] => 6900 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17403062 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/403062
Seal with surface indents Aug 15, 2021 Issued
Array ( [id] => 17570572 [patent_doc_number] => 11318827 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-05-03 [patent_title] => Bottom pan seal system [patent_app_type] => utility [patent_app_number] => 17/377222 [patent_app_country] => US [patent_app_date] => 2021-07-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 5217 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17377222 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/377222
Bottom pan seal system Jul 14, 2021 Issued
Array ( [id] => 17357647 [patent_doc_number] => 20220018443 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-20 [patent_title] => SEAL ASSEMBLY INCLUDING SHAPE MEMORY STIFFENING MEMBERS [patent_app_type] => utility [patent_app_number] => 17/370253 [patent_app_country] => US [patent_app_date] => 2021-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4698 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17370253 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/370253
Seal assembly including shape memory stiffening members Jul 7, 2021 Issued
Array ( [id] => 17357643 [patent_doc_number] => 20220018439 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-20 [patent_title] => SEAL ASSEMBLY WITH ACTUATION MEMBERS CONSTRUCTED OF SHAPE MEMORY MATERIAL [patent_app_type] => utility [patent_app_number] => 17/370281 [patent_app_country] => US [patent_app_date] => 2021-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4659 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17370281 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/370281
Seal assembly with actuation members constructed of shape memory material Jul 7, 2021 Issued
Array ( [id] => 17400510 [patent_doc_number] => 20220042600 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-10 [patent_title] => GLASS REINFORCED EPOXY KAMMPROFILE SEALING GASKET [patent_app_type] => utility [patent_app_number] => 17/305378 [patent_app_country] => US [patent_app_date] => 2021-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1367 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17305378 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/305378
GLASS REINFORCED EPOXY KAMMPROFILE SEALING GASKET Jul 5, 2021 Pending
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