
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] => 16825254
[patent_doc_number] => 20210140547
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-05-13
[patent_title] => CARTRIDGE SEAL ASSEMBLY FOR ROTATIONAL EQUIPMENT
[patent_app_type] => utility
[patent_app_number] => 16/679882
[patent_app_country] => US
[patent_app_date] => 2019-11-11
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16679882
[rel_patent_id] =>[rel_patent_doc_number] =>) 16/679882 | Cartridge seal assembly for rotational equipment | Nov 10, 2019 | Issued |
Array
(
[id] => 17193842
[patent_doc_number] => 11162590
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2021-11-02
[patent_title] => Sealing ring with a 3D-printed inlay
[patent_app_type] => utility
[patent_app_number] => 16/675216
[patent_app_country] => US
[patent_app_date] => 2019-11-05
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/675216 | Sealing ring with a 3D-printed inlay | Nov 4, 2019 | Issued |
Array
(
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[patent_doc_number] => 11353113
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[patent_kind] => B2
[patent_issue_date] => 2022-06-07
[patent_title] => Seal assembly and method of using the same
[patent_app_type] => utility
[patent_app_number] => 16/671632
[patent_app_country] => US
[patent_app_date] => 2019-11-01
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/671632 | Seal assembly and method of using the same | Oct 31, 2019 | Issued |
Array
(
[id] => 18590952
[patent_doc_number] => 11739840
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2023-08-29
[patent_title] => Piston ring
[patent_app_type] => utility
[patent_app_number] => 17/291464
[patent_app_country] => US
[patent_app_date] => 2019-10-31
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/291464 | Piston ring | Oct 30, 2019 | Issued |
Array
(
[id] => 17697654
[patent_doc_number] => 11371373
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2022-06-28
[patent_title] => Seal assembly for use in gas turbine engines
[patent_app_type] => utility
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[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/666890 | Seal assembly for use in gas turbine engines | Oct 28, 2019 | Issued |
Array
(
[id] => 18492694
[patent_doc_number] => 11698105
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2023-07-11
[patent_title] => Surface processing method of disk member of sealing apparatus, and sealing apparatus
[patent_app_type] => utility
[patent_app_number] => 16/754536
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/754536 | Surface processing method of disk member of sealing apparatus, and sealing apparatus | Oct 23, 2019 | Issued |
Array
(
[id] => 17266994
[patent_doc_number] => 11192400
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[patent_kind] => B2
[patent_issue_date] => 2021-12-07
[patent_title] => Sealing device for a wheel hub unit
[patent_app_type] => utility
[patent_app_number] => 16/653269
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/653269 | Sealing device for a wheel hub unit | Oct 14, 2019 | Issued |
Array
(
[id] => 17336987
[patent_doc_number] => 20220003318
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-01-06
[patent_title] => SEAL DEVICE, ELECTRIC MACHINE, AND DRIVE DEVICE
[patent_app_type] => utility
[patent_app_number] => 17/293210
[patent_app_country] => US
[patent_app_date] => 2019-10-14
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/293210 | Seal device, electric machine, and drive device | Oct 13, 2019 | Issued |
Array
(
[id] => 19594800
[patent_doc_number] => 12152631
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2024-11-26
[patent_title] => Sliding member
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Array
(
[id] => 16728616
[patent_doc_number] => 20210095763
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-04-01
[patent_title] => CARBON SEAL ASSEMBLY
[patent_app_type] => utility
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[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/589588 | Carbon seal assembly | Sep 30, 2019 | Issued |
Array
(
[id] => 15712527
[patent_doc_number] => 20200103029
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-04-02
[patent_title] => SEALING ELEMENT
[patent_app_type] => utility
[patent_app_number] => 16/587417
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/587417 | Sealing element | Sep 29, 2019 | Issued |
Array
(
[id] => 17379074
[patent_doc_number] => 11237080
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2022-02-01
[patent_title] => Mechanical seal with integrated RFID sensor
[patent_app_type] => utility
[patent_app_number] => 16/585912
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/585912 | Mechanical seal with integrated RFID sensor | Sep 26, 2019 | Issued |
Array
(
[id] => 15712529
[patent_doc_number] => 20200103030
[patent_country] => US
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[patent_issue_date] => 2020-04-02
[patent_title] => GASKET AND SANITARY EQUIPMENT
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/584393 | GASKET AND SANITARY EQUIPMENT | Sep 25, 2019 | Abandoned |
Array
(
[id] => 17681399
[patent_doc_number] => 11365640
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[patent_issue_date] => 2022-06-21
[patent_title] => Seal assembly with anti-rotation lock
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/576206 | Seal assembly with anti-rotation lock | Sep 18, 2019 | Issued |
Array
(
[id] => 18545770
[patent_doc_number] => 11719114
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[patent_issue_date] => 2023-08-08
[patent_title] => Low friction carbon--carbon seal assembly
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Array
(
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Array
(
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[patent_doc_number] => 11231110
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[patent_issue_date] => 2022-01-25
[patent_title] => Shaft seal having a shaft sealing ring
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Array
(
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Array
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Array
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