
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 number | Title of the application | Filing Date | Status |
|---|---|---|---|
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
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[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
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[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
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[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
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[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
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[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
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[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
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[patent_issue_date] => 2024-01-09
[patent_title] => Sliding member
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[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
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[patent_issue_date] => 2024-01-09
[patent_title] => Sliding member
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[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
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[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
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[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
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[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
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/407934 | MAIN SEAL ASSEMBLY | Aug 19, 2021 | Abandoned |
Array
(
[id] => 19594554
[patent_doc_number] => 12152384
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[patent_title] => Sealing profile and method for producing a plurality of sealing profiles
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Array
(
[id] => 18478898
[patent_doc_number] => 11692631
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[patent_issue_date] => 2023-07-04
[patent_title] => Automatic wiper for seal stack assembly
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[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
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[patent_title] => Metal O-ring seal
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Array
(
[id] => 18399897
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[patent_title] => Seal with surface indents
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/403062 | Seal with surface indents | Aug 15, 2021 | Issued |
Array
(
[id] => 17570572
[patent_doc_number] => 11318827
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[patent_title] => Bottom pan seal system
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/377222 | Bottom pan seal system | Jul 14, 2021 | Issued |
Array
(
[id] => 17357647
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[patent_title] => SEAL ASSEMBLY INCLUDING SHAPE MEMORY STIFFENING MEMBERS
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Array
(
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Array
(
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[patent_title] => GLASS REINFORCED EPOXY KAMMPROFILE SEALING GASKET
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/305378 | GLASS REINFORCED EPOXY KAMMPROFILE SEALING GASKET | Jul 5, 2021 | Pending |