Search

Eric Chang

Examiner (ID: 15894, Phone: (571)272-3671 , Office: P/2116 )

Most Active Art Unit
2116
Art Unit(s)
2186, 2116, 2185
Total Applications
657
Issued Applications
458
Pending Applications
14
Abandoned Applications
185

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 15993605 [patent_doc_number] => 20200172673 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-06-04 [patent_title] => PROCESS FOR PREPARING NYLON SALT AND ITS POLYMERIZATION [patent_app_type] => utility [patent_app_number] => 16/779364 [patent_app_country] => US [patent_app_date] => 2020-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9866 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 40 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16779364 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/779364
Process for preparing nylon salt and its polymerization Jan 30, 2020 Issued
Array ( [id] => 20535834 [patent_doc_number] => 12552900 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-17 [patent_title] => Polyimide-based polymer film, substrate for display device, and optical device using the same [patent_app_type] => utility [patent_app_number] => 15/733830 [patent_app_country] => US [patent_app_date] => 2020-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 3383 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 264 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15733830 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/733830
Polyimide-based polymer film, substrate for display device, and optical device using the same Jan 27, 2020 Issued
Array ( [id] => 19368384 [patent_doc_number] => 12060456 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-08-13 [patent_title] => Polyimide precursor composition and polyimide film, substrate for display device, and optical device prepared by using same [patent_app_type] => utility [patent_app_number] => 17/059997 [patent_app_country] => US [patent_app_date] => 2020-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7370 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17059997 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/059997
Polyimide precursor composition and polyimide film, substrate for display device, and optical device prepared by using same Jan 27, 2020 Issued
Array ( [id] => 18274127 [patent_doc_number] => 11613051 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-03-28 [patent_title] => Shape-memory polyimide nanocomposites and fabrication of same [patent_app_type] => utility [patent_app_number] => 16/752787 [patent_app_country] => US [patent_app_date] => 2020-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 10577 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 288 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16752787 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/752787
Shape-memory polyimide nanocomposites and fabrication of same Jan 26, 2020 Issued
Array ( [id] => 17330124 [patent_doc_number] => 11220577 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-01-11 [patent_title] => Polyamide compound [patent_app_type] => utility [patent_app_number] => 16/773199 [patent_app_country] => US [patent_app_date] => 2020-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4603 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16773199 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/773199
Polyamide compound Jan 26, 2020 Issued
Array ( [id] => 16222836 [patent_doc_number] => 20200247952 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-06 [patent_title] => POLYAMIDE COMPOUND [patent_app_type] => utility [patent_app_number] => 16/773216 [patent_app_country] => US [patent_app_date] => 2020-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6672 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16773216 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/773216
Polyamide compound Jan 26, 2020 Issued
Array ( [id] => 17727826 [patent_doc_number] => 11384202 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-07-12 [patent_title] => Water-soluble polyamide polymer and use thereof as functional additive [patent_app_type] => utility [patent_app_number] => 16/752068 [patent_app_country] => US [patent_app_date] => 2020-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10951 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 278 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16752068 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/752068
Water-soluble polyamide polymer and use thereof as functional additive Jan 23, 2020 Issued
Array ( [id] => 15931293 [patent_doc_number] => 20200157280 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-21 [patent_title] => POLYAMIDES BASED ON AMINOALKYLPIPERAZINE OR AMINOARYLPIPERAZINE FOR HOT-MELT ADHESIVES [patent_app_type] => utility [patent_app_number] => 16/751214 [patent_app_country] => US [patent_app_date] => 2020-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6893 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 202 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16751214 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/751214
POLYAMIDES BASED ON AMINOALKYLPIPERAZINE OR AMINOARYLPIPERAZINE FOR HOT-MELT ADHESIVES Jan 23, 2020 Abandoned
Array ( [id] => 19793402 [patent_doc_number] => 12234334 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-25 [patent_title] => Self-supported elastomeric film having self-healing properties made from a polymer latex [patent_app_type] => utility [patent_app_number] => 17/423692 [patent_app_country] => US [patent_app_date] => 2020-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 14630 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 233 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17423692 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/423692
Self-supported elastomeric film having self-healing properties made from a polymer latex Jan 20, 2020 Issued
Array ( [id] => 15898613 [patent_doc_number] => 20200148825 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-05-14 [patent_title] => DIANHYDRIDES, POLYIMIDES DERIVED FROM BISCATECOL, METHODS OF MAKING, AND METHODS OF USE [patent_app_type] => utility [patent_app_number] => 16/747093 [patent_app_country] => US [patent_app_date] => 2020-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4925 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16747093 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/747093
DIANHYDRIDES, POLYIMIDES DERIVED FROM BISCATECOL, METHODS OF MAKING, AND METHODS OF USE Jan 19, 2020 Abandoned
Array ( [id] => 16688463 [patent_doc_number] => 20210070939 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-11 [patent_title] => POLYIMIDE PRECURSOR SOLUTION AND METHOD FOR PRODUCING POLYIMIDE FILM [patent_app_type] => utility [patent_app_number] => 16/745378 [patent_app_country] => US [patent_app_date] => 2020-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13911 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 43 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16745378 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/745378
POLYIMIDE PRECURSOR SOLUTION AND METHOD FOR PRODUCING POLYIMIDE FILM Jan 16, 2020 Abandoned
Array ( [id] => 18198197 [patent_doc_number] => 20230051716 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-16 [patent_title] => POLYAMIDE 5X FIBER, PREPARATION METHOD THEREOF, AND USE THEREOF [patent_app_type] => utility [patent_app_number] => 17/758892 [patent_app_country] => US [patent_app_date] => 2020-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4523 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17758892 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/758892
Polyamide 5X fiber, preparation method thereof, and use thereof Jan 14, 2020 Issued
Array ( [id] => 17505307 [patent_doc_number] => 20220098409 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-31 [patent_title] => ELECTRICALLY INSULATING AND THERMALLY CONDUCTIVE POLYMER COMPOSITIONS [patent_app_type] => utility [patent_app_number] => 17/421834 [patent_app_country] => US [patent_app_date] => 2020-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4524 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 28 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17421834 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/421834
ELECTRICALLY INSULATING AND THERMALLY CONDUCTIVE POLYMER COMPOSITIONS Jan 9, 2020 Abandoned
Array ( [id] => 17533563 [patent_doc_number] => 20220112172 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-14 [patent_title] => PROCESS FOR PRODUCING DIOL [patent_app_type] => utility [patent_app_number] => 17/417604 [patent_app_country] => US [patent_app_date] => 2020-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14980 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17417604 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/417604
PROCESS FOR PRODUCING DIOL Jan 8, 2020 Abandoned
Array ( [id] => 18405896 [patent_doc_number] => 20230167247 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-01 [patent_title] => Branched-Blocked Copolymer Photo-Crosslinker Functionalized with Photoreactive Groups and Its Use for Shaping Degradable Photo-Crosslinked Elastomers Suitable for Medical and Tissue-Engineering Applications [patent_app_type] => utility [patent_app_number] => 17/420768 [patent_app_country] => US [patent_app_date] => 2020-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12866 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17420768 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/420768
Branched-blocked copolymer photo-crosslinker functionalized with photoreactive groups and its use for shaping degradable photo-crosslinked elastomers suitable for medical and tissue-engineering applications Jan 7, 2020 Issued
Array ( [id] => 17443908 [patent_doc_number] => 20220064413 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-03 [patent_title] => RUBBER COMPOSITION FOR COATING METAL CORD, STEEL CORD-RUBBER COMPOSITE, TIRE, AND CHEMICAL PRODUCT [patent_app_type] => utility [patent_app_number] => 17/421051 [patent_app_country] => US [patent_app_date] => 2020-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7464 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17421051 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/421051
RUBBER COMPOSITION FOR COATING METAL CORD, STEEL CORD-RUBBER COMPOSITE, TIRE, AND CHEMICAL PRODUCT Jan 6, 2020 Abandoned
Array ( [id] => 17428614 [patent_doc_number] => 20220056322 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-02-24 [patent_title] => CURABLE SILICONE COMPOSITION, RELEASE COATING AGENT COMPRISING SAID COMPOSITION, RELEASE FILM OBTAINED USING SAID RELEASE COATING AGENT, AND LAYERED PRODUCT INCLUDING SAID RELEASE FILM [patent_app_type] => utility [patent_app_number] => 17/418387 [patent_app_country] => US [patent_app_date] => 2019-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11669 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17418387 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/418387
Curable silicone composition, release coating agent comprising said composition, release film obtained using said release coating agent, and layered product including said release film Dec 26, 2019 Issued
Array ( [id] => 17443851 [patent_doc_number] => 20220064356 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-03 [patent_title] => NOVOLAC PHENOLIC RESINS, PROCESS OF SYNTHESIS OF SAID PHENOLIC RESINS AND USE THEREOF [patent_app_type] => utility [patent_app_number] => 17/418737 [patent_app_country] => US [patent_app_date] => 2019-12-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7046 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17418737 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/418737
NOVOLAC PHENOLIC RESINS, PROCESS OF SYNTHESIS OF SAID PHENOLIC RESINS AND USE THEREOF Dec 25, 2019 Pending
Array ( [id] => 20343229 [patent_doc_number] => 12466951 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => Polyamide resin film and resin laminate using the same [patent_app_type] => utility [patent_app_number] => 16/972389 [patent_app_country] => US [patent_app_date] => 2019-12-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 11043 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 403 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16972389 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/972389
Polyamide resin film and resin laminate using the same Dec 25, 2019 Issued
Array ( [id] => 17520615 [patent_doc_number] => 20220106464 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-07 [patent_title] => METHOD FOR RECYCLING NITRILE RUBBER [patent_app_type] => utility [patent_app_number] => 17/418989 [patent_app_country] => US [patent_app_date] => 2019-12-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14479 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17418989 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/418989
Method for recycling nitrile rubber Dec 24, 2019 Issued
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