
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] => 15698391
[patent_doc_number] => 10605366
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2020-03-31
[patent_title] => Pressure ring
[patent_app_type] => utility
[patent_app_number] => 15/950744
[patent_app_country] => US
[patent_app_date] => 2018-04-11
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[rel_patent_id] =>[rel_patent_doc_number] =>) 15/950744 | Pressure ring | Apr 10, 2018 | Issued |
Array
(
[id] => 13494467
[patent_doc_number] => 20180298776
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2018-10-18
[patent_title] => TURBINE ABRADABLE AIR SEAL SYSTEM
[patent_app_type] => utility
[patent_app_number] => 15/948596
[patent_app_country] => US
[patent_app_date] => 2018-04-09
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Array
(
[id] => 13480929
[patent_doc_number] => 20180292007
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2018-10-11
[patent_title] => PISTON RING
[patent_app_type] => utility
[patent_app_number] => 15/947627
[patent_app_country] => US
[patent_app_date] => 2018-04-06
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 15/947627 | Piston ring | Apr 5, 2018 | Issued |
Array
(
[id] => 14964745
[patent_doc_number] => 20190309851
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2019-10-10
[patent_title] => BI-DIRECTIONAL SELF-ENERGIZING GASKETS
[patent_app_type] => utility
[patent_app_number] => 15/946896
[patent_app_country] => US
[patent_app_date] => 2018-04-06
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 15/946896 | Bi-directional self-energizing gaskets | Apr 5, 2018 | Issued |
Array
(
[id] => 14931949
[patent_doc_number] => 20190301612
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2019-10-03
[patent_title] => VENTED LIP SEAL
[patent_app_type] => utility
[patent_app_number] => 15/941113
[patent_app_country] => US
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Array
(
[id] => 14931957
[patent_doc_number] => 20190301616
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2019-10-03
[patent_title] => Cryogenic Ferrofluid Sealed Rotary Union
[patent_app_type] => utility
[patent_app_number] => 15/941096
[patent_app_country] => US
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Array
(
[id] => 17421990
[patent_doc_number] => 11255437
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[patent_kind] => B2
[patent_issue_date] => 2022-02-22
[patent_title] => Sealing device
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/499007 | Sealing device | Mar 29, 2018 | Issued |
Array
(
[id] => 16197942
[patent_doc_number] => 10723082
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2020-07-28
[patent_title] => Housing assembly and method
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[patent_app_number] => 15/920310
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[rel_patent_id] =>[rel_patent_doc_number] =>) 15/920310 | Housing assembly and method | Mar 12, 2018 | Issued |
Array
(
[id] => 14838003
[patent_doc_number] => 20190277402
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2019-09-12
[patent_title] => APPARATUS AND METHODS FOR ADDITIVELY MANUFACTURING O-RING GROOVES
[patent_app_type] => utility
[patent_app_number] => 15/919129
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[rel_patent_id] =>[rel_patent_doc_number] =>) 15/919129 | APPARATUS AND METHODS FOR ADDITIVELY MANUFACTURING O-RING GROOVES | Mar 11, 2018 | Abandoned |
Array
(
[id] => 15852081
[patent_doc_number] => 10641312
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2020-05-05
[patent_title] => Gasket assembly
[patent_app_type] => utility
[patent_app_number] => 15/917228
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[rel_patent_id] =>[rel_patent_doc_number] =>) 15/917228 | Gasket assembly | Mar 8, 2018 | Issued |
Array
(
[id] => 16177803
[patent_doc_number] => 20200224771
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2020-07-16
[patent_title] => BACK TO BACK BEARING SEALING SYSTEMS
[patent_app_type] => utility
[patent_app_number] => 16/491469
[patent_app_country] => US
[patent_app_date] => 2018-03-08
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/491469 | Back to back bearing sealing systems | Mar 7, 2018 | Issued |
Array
(
[id] => 15728341
[patent_doc_number] => 10612597
[patent_country] => US
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[patent_issue_date] => 2020-04-07
[patent_title] => Sealing apparatus
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[rel_patent_id] =>[rel_patent_doc_number] =>) 15/915720 | Sealing apparatus | Mar 7, 2018 | Issued |
Array
(
[id] => 14779831
[patent_doc_number] => 20190264813
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2019-08-29
[patent_title] => WIPER SEAL SYSTEM AND METHOD
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[rel_patent_id] =>[rel_patent_doc_number] =>) 15/907851 | Wiper seal system and method | Feb 27, 2018 | Issued |
Array
(
[id] => 16809015
[patent_doc_number] => 20210131568
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[patent_title] => SEALING DEVICE AND COMPRESSOR
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/487241 | Sealing device and compressor | Feb 21, 2018 | Issued |
Array
(
[id] => 12865030
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[patent_title] => SEALING STRUCTURE
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Array
(
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Array
(
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Array
(
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Array
(
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Array
(
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[rel_patent_id] =>[rel_patent_doc_number] =>) 16/482806 | Gas seal member for high-pressure hydrogen device, and high-pressure hydrogen device | Feb 12, 2018 | Issued |