
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] => 17968977
[patent_doc_number] => 11486496
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2022-11-01
[patent_title] => Spoked rotary seal
[patent_app_type] => utility
[patent_app_number] => 17/137888
[patent_app_country] => US
[patent_app_date] => 2020-12-30
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17137888
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/137888 | Spoked rotary seal | Dec 29, 2020 | Issued |
Array
(
[id] => 19856251
[patent_doc_number] => 12259077
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-03-25
[patent_title] => Device for a sealed passage of longitudinal elements through a partition
[patent_app_type] => utility
[patent_app_number] => 17/790387
[patent_app_country] => US
[patent_app_date] => 2020-12-30
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17790387
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/790387 | Device for a sealed passage of longitudinal elements through a partition | Dec 29, 2020 | Issued |
Array
(
[id] => 16763144
[patent_doc_number] => 20210108725
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-04-15
[patent_title] => ELASTOMERIC GEL BODY GASKET HAVING A SUBSTANTIALLY
INCOMPRESSIBLE SKELETON, A METHOD OF MAKING AND USING THE SAME
[patent_app_type] => utility
[patent_app_number] => 17/247641
[patent_app_country] => US
[patent_app_date] => 2020-12-18
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17247641
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/247641 | Elastomeric gel body gasket having a substantially incompressible skeleton, a method of making and using the same | Dec 17, 2020 | Issued |
Array
(
[id] => 18238237
[patent_doc_number] => 20230070548
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2023-03-09
[patent_title] => Sealant Having Fireworthy Properties for Use With Aircraft Parts
[patent_app_type] => utility
[patent_app_number] => 17/247599
[patent_app_country] => US
[patent_app_date] => 2020-12-17
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/247599 | Sealant having fireworthy properties for use with aircraft parts | Dec 16, 2020 | Issued |
Array
(
[id] => 16933308
[patent_doc_number] => 20210199197
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-07-01
[patent_title] => DYNAMIC SEAL
[patent_app_type] => utility
[patent_app_number] => 17/121855
[patent_app_country] => US
[patent_app_date] => 2020-12-15
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/121855 | Dynamic seal | Dec 14, 2020 | Issued |
Array
(
[id] => 19731675
[patent_doc_number] => 12209666
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2025-01-28
[patent_title] => Sealing elements with integrated intrinsic energizers
[patent_app_type] => utility
[patent_app_number] => 17/637114
[patent_app_country] => US
[patent_app_date] => 2020-12-08
[patent_effective_date] => 0000-00-00
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/637114 | Sealing elements with integrated intrinsic energizers | Dec 7, 2020 | Issued |
Array
(
[id] => 19044314
[patent_doc_number] => 11933407
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2024-03-19
[patent_title] => Compression ring
[patent_app_type] => utility
[patent_app_number] => 17/784434
[patent_app_country] => US
[patent_app_date] => 2020-12-03
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17784434
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/784434 | Compression ring | Dec 2, 2020 | Issued |
Array
(
[id] => 18078322
[patent_doc_number] => 20220403934
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-12-22
[patent_title] => SEAL WITH DIFFERENT COMPRESSIONS
[patent_app_type] => utility
[patent_app_number] => 17/776632
[patent_app_country] => US
[patent_app_date] => 2020-11-24
[patent_effective_date] => 0000-00-00
[patent_drawing_sheets_cnt] => 0
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17776632
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/776632 | Seal with different compressions | Nov 23, 2020 | Issued |
Array
(
[id] => 17785396
[patent_doc_number] => 11408511
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2022-08-09
[patent_title] => Circumferential seal assembly
[patent_app_type] => utility
[patent_app_number] => 17/100635
[patent_app_country] => US
[patent_app_date] => 2020-11-20
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17100635
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/100635 | Circumferential seal assembly | Nov 19, 2020 | Issued |
Array
(
[id] => 16855727
[patent_doc_number] => 20210156472
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-05-27
[patent_title] => BELLOWS SEAL ASSEMBLY
[patent_app_type] => utility
[patent_app_number] => 17/100678
[patent_app_country] => US
[patent_app_date] => 2020-11-20
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17100678
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/100678 | Bellows seal assembly | Nov 19, 2020 | Issued |
Array
(
[id] => 17483177
[patent_doc_number] => 20220090681
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2022-03-24
[patent_title] => MECHANISM FOR SEALING CYLINDER AND CYLINDER HEAD
[patent_app_type] => utility
[patent_app_number] => 17/099595
[patent_app_country] => US
[patent_app_date] => 2020-11-16
[patent_effective_date] => 0000-00-00
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[pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17099595
[rel_patent_id] =>[rel_patent_doc_number] =>) 17/099595 | MECHANISM FOR SEALING CYLINDER AND CYLINDER HEAD | Nov 15, 2020 | Abandoned |
Array
(
[id] => 16847725
[patent_doc_number] => 20210148470
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-05-20
[patent_title] => HYDRAULIC SEAL
[patent_app_type] => utility
[patent_app_number] => 17/097832
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/097832 | Hydraulic seal | Nov 12, 2020 | Issued |
Array
(
[id] => 16847724
[patent_doc_number] => 20210148469
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-05-20
[patent_title] => Rotary Joint Shroud Having Set-Up Gauge and Seal Wear Indicator
[patent_app_type] => utility
[patent_app_number] => 17/089235
[patent_app_country] => US
[patent_app_date] => 2020-11-04
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/089235 | Rotary joint shroud having set-up gauge and seal wear indicator | Nov 3, 2020 | Issued |
Array
(
[id] => 18261198
[patent_doc_number] => 11608895
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2023-03-21
[patent_title] => Dispensing seal
[patent_app_type] => utility
[patent_app_number] => 17/083729
[patent_app_country] => US
[patent_app_date] => 2020-10-29
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/083729 | Dispensing seal | Oct 28, 2020 | Issued |
Array
(
[id] => 17922994
[patent_doc_number] => 11466228
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2022-10-11
[patent_title] => Friction control and captive sealant for pressed windows
[patent_app_type] => utility
[patent_app_number] => 17/078370
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/078370 | Friction control and captive sealant for pressed windows | Oct 22, 2020 | Issued |
Array
(
[id] => 18078323
[patent_doc_number] => 20220403935
[patent_country] => US
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[patent_issue_date] => 2022-12-22
[patent_title] => SEAL ASSEMBLY AND SEAL ELEMENT
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/777628 | SEAL ASSEMBLY AND SEAL ELEMENT | Oct 18, 2020 | Abandoned |
Array
(
[id] => 16855734
[patent_doc_number] => 20210156479
[patent_country] => US
[patent_kind] => A1
[patent_issue_date] => 2021-05-27
[patent_title] => DEPLOYABLE PRESSURE ENERGIZED SEALING BACKUP SYSTEMS FOR IMPROVED LONG TERM RELIABILITY
[patent_app_type] => utility
[patent_app_number] => 17/070156
[patent_app_country] => US
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/070156 | Deployable pressure energized sealing backup systems for improved long term reliability | Oct 13, 2020 | Issued |
Array
(
[id] => 18838288
[patent_doc_number] => 11846353
[patent_country] => US
[patent_kind] => B2
[patent_issue_date] => 2023-12-19
[patent_title] => Gasket ring and flange connection using such gasket ring
[patent_app_type] => utility
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[patent_app_country] => US
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Array
(
[id] => 16728618
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[patent_title] => HYDRAULIC MOTOR SHAFT SEAL ASSEMBLY
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/032088 | HYDRAULIC MOTOR SHAFT SEAL ASSEMBLY | Sep 24, 2020 | Abandoned |
Array
(
[id] => 19227396
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[rel_patent_id] =>[rel_patent_doc_number] =>) 17/026366 | Two position medical handpiece seal | Sep 20, 2020 | Issued |