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] => 16558072 [patent_doc_number] => 20210003220 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-07 [patent_title] => ELECTRICALLY CONDUCTIVE SEALING ASSEMBLY, AND ASSEMBLY HAVING TWO MACHINE ELEMENTS SEALED OFF WITH RESPECT TO ONE ANOTHER [patent_app_type] => utility [patent_app_number] => 16/976810 [patent_app_country] => US [patent_app_date] => 2019-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2074 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 120 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16976810 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/976810
Electrically conductive sealing assembly, and assembly having two machine elements sealed off with respect to one another Jan 10, 2019 Issued
Array ( [id] => 16391955 [patent_doc_number] => 20200332896 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-22 [patent_title] => SEAL STRUCTURE AND SEAL TO BE USED IN SAME [patent_app_type] => utility [patent_app_number] => 16/759885 [patent_app_country] => US [patent_app_date] => 2019-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4922 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16759885 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/759885
SEAL STRUCTURE AND SEAL TO BE USED IN SAME Jan 7, 2019 Abandoned
Array ( [id] => 14583127 [patent_doc_number] => 20190219172 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-07-18 [patent_title] => SEAL AND SEAL ASSEMBLY COMPRISING THE SEAL [patent_app_type] => utility [patent_app_number] => 16/242024 [patent_app_country] => US [patent_app_date] => 2019-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3383 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16242024 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/242024
Seal and seal assembly comprising the seal Jan 7, 2019 Issued
Array ( [id] => 14279391 [patent_doc_number] => 20190136980 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-05-09 [patent_title] => CERAMIC SEAL RUNNER AND MOUNT FOR A ROTATING SHAFT [patent_app_type] => utility [patent_app_number] => 16/240912 [patent_app_country] => US [patent_app_date] => 2019-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4215 [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] => 16240912 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/240912
Ceramic seal runner and mount for a rotating shaft Jan 6, 2019 Issued
Array ( [id] => 16430278 [patent_doc_number] => 10830355 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-11-10 [patent_title] => Rubber coated metal seal with integrated inner seal and outer seal portions [patent_app_type] => utility [patent_app_number] => 16/241250 [patent_app_country] => US [patent_app_date] => 2019-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4837 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16241250 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/241250
Rubber coated metal seal with integrated inner seal and outer seal portions Jan 6, 2019 Issued
Array ( [id] => 16157967 [patent_doc_number] => 20200217216 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-07-09 [patent_title] => HYDROSTATIC SEAL WITH AFT TOOTH [patent_app_type] => utility [patent_app_number] => 16/239616 [patent_app_country] => US [patent_app_date] => 2019-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3805 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16239616 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/239616
Hydrostatic seal with aft tooth Jan 3, 2019 Issued
Array ( [id] => 16800930 [patent_doc_number] => 10995861 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-05-04 [patent_title] => Cantilevered hydrostatic advanced low leakage seal [patent_app_type] => utility [patent_app_number] => 16/239226 [patent_app_country] => US [patent_app_date] => 2019-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 7 [patent_no_of_words] => 3652 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16239226 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/239226
Cantilevered hydrostatic advanced low leakage seal Jan 2, 2019 Issued
Array ( [id] => 16771671 [patent_doc_number] => 10982770 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-04-20 [patent_title] => Hydrostatic seal with extended housing [patent_app_type] => utility [patent_app_number] => 16/239242 [patent_app_country] => US [patent_app_date] => 2019-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3572 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16239242 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/239242
Hydrostatic seal with extended housing Jan 2, 2019 Issued
Array ( [id] => 16388962 [patent_doc_number] => 20200329903 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-22 [patent_title] => A MIXING APPARATUS HAVING A SEAL [patent_app_type] => utility [patent_app_number] => 16/957559 [patent_app_country] => US [patent_app_date] => 2018-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5621 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 16957559 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/957559
Mixing apparatus having a seal Dec 16, 2018 Issued
Array ( [id] => 16074565 [patent_doc_number] => 20200191269 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-06-18 [patent_title] => PISTON RING, PISTON ASSEMBLY INCLUDING PISTON RING, AND METHODS OF MANUFACTURING [patent_app_type] => utility [patent_app_number] => 16/220989 [patent_app_country] => US [patent_app_date] => 2018-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2942 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16220989 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/220989
PISTON RING, PISTON ASSEMBLY INCLUDING PISTON RING, AND METHODS OF MANUFACTURING Dec 13, 2018 Abandoned
Array ( [id] => 14779829 [patent_doc_number] => 20190264812 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-08-29 [patent_title] => SEALING DEVICE [patent_app_type] => utility [patent_app_number] => 16/219776 [patent_app_country] => US [patent_app_date] => 2018-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7198 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 148 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16219776 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/219776
SEALING DEVICE Dec 12, 2018 Abandoned
Array ( [id] => 15696133 [patent_doc_number] => 10604230 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-03-31 [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] => 16/216104 [patent_app_country] => US [patent_app_date] => 2018-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 17 [patent_no_of_words] => 5011 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 3 [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] => 16216104 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/216104
Elastomeric gel body gasket having a substantially incompressible skeleton, a method of making and using the same Dec 10, 2018 Issued
Array ( [id] => 16010785 [patent_doc_number] => 20200180235 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-06-11 [patent_title] => HIGH TEMPERATURE COMPOSITE SEAL [patent_app_type] => utility [patent_app_number] => 16/210528 [patent_app_country] => US [patent_app_date] => 2018-12-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5239 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16210528 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/210528
High temperature composite seal Dec 4, 2018 Issued
Array ( [id] => 15995375 [patent_doc_number] => 20200173558 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-06-04 [patent_title] => Crankshaft Seal Design [patent_app_type] => utility [patent_app_number] => 16/209321 [patent_app_country] => US [patent_app_date] => 2018-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5156 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 425 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16209321 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/209321
Crankshaft seal design Dec 3, 2018 Issued
Array ( [id] => 15695317 [patent_doc_number] => 10603822 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-03-31 [patent_title] => Elastomeric gasket for fuel access door of an aircraft wing and a method for making the same [patent_app_type] => utility [patent_app_number] => 16/202623 [patent_app_country] => US [patent_app_date] => 2018-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 23 [patent_no_of_words] => 3212 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16202623 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/202623
Elastomeric gasket for fuel access door of an aircraft wing and a method for making the same Nov 27, 2018 Issued
Array ( [id] => 15964355 [patent_doc_number] => 20200165929 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-28 [patent_title] => MULTI-COMPONENT ASSEMBLED HYDROSTATIC SEAL [patent_app_type] => utility [patent_app_number] => 16/202836 [patent_app_country] => US [patent_app_date] => 2018-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4761 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16202836 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/202836
Multi-component assembled hydrostatic seal Nov 27, 2018 Issued
Array ( [id] => 15964355 [patent_doc_number] => 20200165929 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-28 [patent_title] => MULTI-COMPONENT ASSEMBLED HYDROSTATIC SEAL [patent_app_type] => utility [patent_app_number] => 16/202836 [patent_app_country] => US [patent_app_date] => 2018-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4761 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16202836 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/202836
Multi-component assembled hydrostatic seal Nov 27, 2018 Issued
Array ( [id] => 15964355 [patent_doc_number] => 20200165929 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-28 [patent_title] => MULTI-COMPONENT ASSEMBLED HYDROSTATIC SEAL [patent_app_type] => utility [patent_app_number] => 16/202836 [patent_app_country] => US [patent_app_date] => 2018-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4761 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16202836 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/202836
Multi-component assembled hydrostatic seal Nov 27, 2018 Issued
Array ( [id] => 15964355 [patent_doc_number] => 20200165929 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-28 [patent_title] => MULTI-COMPONENT ASSEMBLED HYDROSTATIC SEAL [patent_app_type] => utility [patent_app_number] => 16/202836 [patent_app_country] => US [patent_app_date] => 2018-11-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4761 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16202836 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/202836
Multi-component assembled hydrostatic seal Nov 27, 2018 Issued
Array ( [id] => 17344506 [patent_doc_number] => 20220010837 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-13 [patent_title] => BEARING AND/OR SEAL ASSEMBLY INCLUDING PERMEABLE BODY WITH FEATURES ENGINEERED TO FORM A DESIRED DISTRIBUTION PATTERN FOR A PRESSURIZED GAS CONVEYED THERETHROUGH [patent_app_type] => utility [patent_app_number] => 17/293347 [patent_app_country] => US [patent_app_date] => 2018-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3256 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 17293347 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/293347
Bearing and/or seal assembly including permeable body with features engineered to form a desired distribution pattern for a pressurized gas conveyed therethrough Nov 19, 2018 Issued
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