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] => 17489932 [patent_doc_number] => 11279216 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-03-22 [patent_title] => Sealing element comprising a cover strip [patent_app_type] => utility [patent_app_number] => 16/472661 [patent_app_country] => US [patent_app_date] => 2018-02-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 1297 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16472661 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/472661
Sealing element comprising a cover strip Feb 7, 2018 Issued
Array ( [id] => 15741791 [patent_doc_number] => 20200109783 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-09 [patent_title] => METHOD FOR PRODUCING A SEAL BETWEEN TWO ROOF FRAME ELEMENTS, AND ASSEMBLY COMPRISING TWO ROOF FRAME ELEMENTS [patent_app_type] => utility [patent_app_number] => 16/495743 [patent_app_country] => US [patent_app_date] => 2018-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3931 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16495743 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/495743
METHOD FOR PRODUCING A SEAL BETWEEN TWO ROOF FRAME ELEMENTS, AND ASSEMBLY COMPRISING TWO ROOF FRAME ELEMENTS Feb 6, 2018 Abandoned
Array ( [id] => 14597633 [patent_doc_number] => 10352003 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-07-16 [patent_title] => Expansion joint seal system with spring centering [patent_app_type] => utility [patent_app_number] => 15/890823 [patent_app_country] => US [patent_app_date] => 2018-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 19 [patent_no_of_words] => 17568 [patent_no_of_claims] => 52 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15890823 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/890823
Expansion joint seal system with spring centering Feb 6, 2018 Issued
Array ( [id] => 17000066 [patent_doc_number] => 11078868 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-08-03 [patent_title] => Piston ring [patent_app_type] => utility [patent_app_number] => 16/479975 [patent_app_country] => US [patent_app_date] => 2018-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 1052 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 167 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16479975 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/479975
Piston ring Feb 5, 2018 Issued
Array ( [id] => 12793501 [patent_doc_number] => 20180156336 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-07 [patent_title] => SEALING APPARATUS [patent_app_type] => utility [patent_app_number] => 15/885999 [patent_app_country] => US [patent_app_date] => 2018-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5080 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 324 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15885999 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/885999
Sealing apparatus Jan 31, 2018 Issued
Array ( [id] => 16353985 [patent_doc_number] => 10794490 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-10-06 [patent_title] => High pressure seal [patent_app_type] => utility [patent_app_number] => 15/883820 [patent_app_country] => US [patent_app_date] => 2018-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 13 [patent_no_of_words] => 4140 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15883820 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/883820
High pressure seal Jan 29, 2018 Issued
Array ( [id] => 17150237 [patent_doc_number] => 11143306 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-10-12 [patent_title] => Self-aligning seal [patent_app_type] => utility [patent_app_number] => 15/877171 [patent_app_country] => US [patent_app_date] => 2018-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 3507 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15877171 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/877171
Self-aligning seal Jan 21, 2018 Issued
Array ( [id] => 15437251 [patent_doc_number] => 20200032809 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-30 [patent_title] => MECHANICAL SEAL ASSEMBLY WITH SAFETY SEAL [patent_app_type] => utility [patent_app_number] => 16/483663 [patent_app_country] => US [patent_app_date] => 2018-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4139 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16483663 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/483663
Mechanical seal assembly with safety seal Jan 15, 2018 Issued
Array ( [id] => 17105131 [patent_doc_number] => 11125335 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-09-21 [patent_title] => Sliding component [patent_app_type] => utility [patent_app_number] => 16/475641 [patent_app_country] => US [patent_app_date] => 2018-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5891 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16475641 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/475641
Sliding component Jan 14, 2018 Issued
Array ( [id] => 16832831 [patent_doc_number] => 11009072 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-05-18 [patent_title] => Sliding component [patent_app_type] => utility [patent_app_number] => 16/480278 [patent_app_country] => US [patent_app_date] => 2018-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8610 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 350 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16480278 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/480278
Sliding component Jan 14, 2018 Issued
Array ( [id] => 15179995 [patent_doc_number] => 20190360589 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-11-28 [patent_title] => GASKET AND SEALING STRUCTURE [patent_app_type] => utility [patent_app_number] => 16/477115 [patent_app_country] => US [patent_app_date] => 2018-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3937 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16477115 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/477115
Gasket and sealing structure Jan 9, 2018 Issued
Array ( [id] => 12911323 [patent_doc_number] => 20180195617 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-12 [patent_title] => Injection Molded Seal Rings and Methods for Making Them [patent_app_type] => utility [patent_app_number] => 15/866193 [patent_app_country] => US [patent_app_date] => 2018-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4516 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15866193 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/866193
Injection molded seal rings and methods for making them Jan 8, 2018 Issued
Array ( [id] => 12911320 [patent_doc_number] => 20180195616 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-12 [patent_title] => Seal Rings and Methods for Making Them [patent_app_type] => utility [patent_app_number] => 15/866190 [patent_app_country] => US [patent_app_date] => 2018-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5900 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 389 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15866190 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/866190
Seal rings and methods for making them Jan 8, 2018 Issued
Array ( [id] => 14454911 [patent_doc_number] => 10323408 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-06-18 [patent_title] => Durable water and fire-resistant tunnel expansion joint seal [patent_app_type] => utility [patent_app_number] => 15/860911 [patent_app_country] => US [patent_app_date] => 2018-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 10 [patent_no_of_words] => 10511 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15860911 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/860911
Durable water and fire-resistant tunnel expansion joint seal Jan 2, 2018 Issued
Array ( [id] => 14597703 [patent_doc_number] => 10352039 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-07-16 [patent_title] => Durable joint seal system with cover plate and ribs [patent_app_type] => utility [patent_app_number] => 15/856304 [patent_app_country] => US [patent_app_date] => 2017-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 16 [patent_no_of_words] => 14965 [patent_no_of_claims] => 51 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15856304 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/856304
Durable joint seal system with cover plate and ribs Dec 27, 2017 Issued
Array ( [id] => 12682600 [patent_doc_number] => 20180119366 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-03 [patent_title] => Durable joint seal system without cover plate and with rotatable ribs [patent_app_type] => utility [patent_app_number] => 15/854187 [patent_app_country] => US [patent_app_date] => 2017-12-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14899 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -42 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15854187 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/854187
Durable joint seal system without cover plate and with rotatable ribs Dec 25, 2017 Issued
Array ( [id] => 12642510 [patent_doc_number] => 20180106001 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-04-19 [patent_title] => Durable joint seal system with flexibly attached cover plate [patent_app_type] => utility [patent_app_number] => 15/846387 [patent_app_country] => US [patent_app_date] => 2017-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16462 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -50 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15846387 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/846387
Durable joint seal system with flexibly attached cover plate Dec 18, 2017 Issued
Array ( [id] => 12840958 [patent_doc_number] => 20180172159 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-06-21 [patent_title] => AIRCRAFT SEAL ASSEMBLY [patent_app_type] => utility [patent_app_number] => 15/845160 [patent_app_country] => US [patent_app_date] => 2017-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7316 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15845160 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/845160
Aircraft seal assembly Dec 17, 2017 Issued
Array ( [id] => 12639111 [patent_doc_number] => 20180104867 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-04-19 [patent_title] => FOAM GASKET AND BONDING TAPE BASED ON POLYURETHANE DISPERSIONS [patent_app_type] => utility [patent_app_number] => 15/841561 [patent_app_country] => US [patent_app_date] => 2017-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14877 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15841561 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/841561
FOAM GASKET AND BONDING TAPE BASED ON POLYURETHANE DISPERSIONS Dec 13, 2017 Abandoned
Array ( [id] => 15269197 [patent_doc_number] => 20190383332 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2019-12-19 [patent_title] => RESIN BOOT [patent_app_type] => utility [patent_app_number] => 16/464032 [patent_app_country] => US [patent_app_date] => 2017-12-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5597 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 55 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16464032 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/464032
RESIN BOOT Dec 5, 2017 Abandoned
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