Search

Kai J. Chang

Examiner (ID: 12149, Phone: (571)270-5448 , Office: P/2468 )

Most Active Art Unit
2468
Art Unit(s)
2468
Total Applications
476
Issued Applications
340
Pending Applications
29
Abandoned Applications
111

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 3774212 [patent_doc_number] => 05807941 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-09-15 [patent_title] => 'Unsaturated nitrile-conjugated diene copolymer process for producing same and vulcanizable rubber composition' [patent_app_type] => 1 [patent_app_number] => 8/793678 [patent_app_country] => US [patent_app_date] => 1997-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 12688 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/807/05807941.pdf [firstpage_image] =>[orig_patent_app_number] => 793678 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/793678
Unsaturated nitrile-conjugated diene copolymer process for producing same and vulcanizable rubber composition Feb 27, 1997 Issued
Array ( [id] => 3727996 [patent_doc_number] => 05700890 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-12-23 [patent_title] => 'Ionomers based on copolymers of ethylene with both mono-and dicarboxylic acids' [patent_app_type] => 1 [patent_app_number] => 8/807943 [patent_app_country] => US [patent_app_date] => 1997-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7367 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/700/05700890.pdf [firstpage_image] =>[orig_patent_app_number] => 807943 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/807943
Ionomers based on copolymers of ethylene with both mono-and dicarboxylic acids Feb 27, 1997 Issued
Array ( [id] => 4033632 [patent_doc_number] => 05994457 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-11-30 [patent_title] => 'Preparation of an aqueous polymer dispersion' [patent_app_type] => 1 [patent_app_number] => 8/737933 [patent_app_country] => US [patent_app_date] => 1997-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9698 [patent_no_of_claims] => 56 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/994/05994457.pdf [firstpage_image] =>[orig_patent_app_number] => 737933 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/737933
Preparation of an aqueous polymer dispersion Feb 27, 1997 Issued
Array ( [id] => 3789005 [patent_doc_number] => 05840803 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-11-24 [patent_title] => 'Thermoplastic composition containing a grafted copolymeric acrylate rubber' [patent_app_type] => 1 [patent_app_number] => 8/806965 [patent_app_country] => US [patent_app_date] => 1997-02-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2468 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/840/05840803.pdf [firstpage_image] =>[orig_patent_app_number] => 806965 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/806965
Thermoplastic composition containing a grafted copolymeric acrylate rubber Feb 25, 1997 Issued
Array ( [id] => 3844360 [patent_doc_number] => 05708097 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-01-13 [patent_title] => 'Treatment of organic compounds to reduce chlorine level' [patent_app_type] => 1 [patent_app_number] => 8/804759 [patent_app_country] => US [patent_app_date] => 1997-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11699 [patent_no_of_claims] => 35 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/708/05708097.pdf [firstpage_image] =>[orig_patent_app_number] => 804759 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/804759
Treatment of organic compounds to reduce chlorine level Feb 23, 1997 Issued
08/803211 NOVEL COMPOSITE MATERIAL, PREPARATION AND USE THEREOF Feb 20, 1997 Abandoned
Array ( [id] => 3827572 [patent_doc_number] => 05783608 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-07-21 [patent_title] => 'Process for producing separation functional fibers and ion-exchange fibers produced therefrom' [patent_app_type] => 1 [patent_app_number] => 8/804520 [patent_app_country] => US [patent_app_date] => 1997-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 13 [patent_no_of_words] => 6319 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/783/05783608.pdf [firstpage_image] =>[orig_patent_app_number] => 804520 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/804520
Process for producing separation functional fibers and ion-exchange fibers produced therefrom Feb 20, 1997 Issued
08/802595 MALEATED HIGH ACID NUMBER HIGH MOLECULAR WEIGHT POLYPROPYLENE OF LOW COLOR Feb 18, 1997 Abandoned
Array ( [id] => 3731887 [patent_doc_number] => 05693680 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-12-02 [patent_title] => 'Polyvinylpyridinium anion-exchangers for recovery of technetium and plutonium anions' [patent_app_type] => 1 [patent_app_number] => 8/801629 [patent_app_country] => US [patent_app_date] => 1997-02-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4134 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/693/05693680.pdf [firstpage_image] =>[orig_patent_app_number] => 801629 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/801629
Polyvinylpyridinium anion-exchangers for recovery of technetium and plutonium anions Feb 17, 1997 Issued
08/801048 PAPERMAKING METHODS AND COMPOSITIONS Feb 13, 1997 Abandoned
Array ( [id] => 3767258 [patent_doc_number] => 05756216 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-05-26 [patent_title] => 'Highly selective nitride spacer etch' [patent_app_type] => 1 [patent_app_number] => 8/799575 [patent_app_country] => US [patent_app_date] => 1997-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 1956 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/756/05756216.pdf [firstpage_image] =>[orig_patent_app_number] => 799575 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/799575
Highly selective nitride spacer etch Feb 11, 1997 Issued
Array ( [id] => 4404781 [patent_doc_number] => 06228396 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-05-08 [patent_title] => 'Colonic drug delivery composition' [patent_app_type] => 1 [patent_app_number] => 8/765347 [patent_app_country] => US [patent_app_date] => 1997-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4655 [patent_no_of_claims] => 13 [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] => patents/06/228/06228396.pdf [firstpage_image] =>[orig_patent_app_number] => 765347 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/765347
Colonic drug delivery composition Feb 9, 1997 Issued
Array ( [id] => 3998247 [patent_doc_number] => 05986014 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-11-16 [patent_title] => 'Processes for preparing (meth)acrylic polymers having functional groups at the chain ends' [patent_app_type] => 1 [patent_app_number] => 8/798034 [patent_app_country] => US [patent_app_date] => 1997-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15959 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/986/05986014.pdf [firstpage_image] =>[orig_patent_app_number] => 798034 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/798034
Processes for preparing (meth)acrylic polymers having functional groups at the chain ends Feb 5, 1997 Issued
08/791207 POLYOLEFIN COMPOSITION SUITED FOR METAL COATING BY FLAME SPRAYING Jan 30, 1997 Abandoned
Array ( [id] => 3794335 [patent_doc_number] => 05726263 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-03-10 [patent_title] => 'Molecular weight truncation and color control in macromonomers' [patent_app_type] => 1 [patent_app_number] => 8/791372 [patent_app_country] => US [patent_app_date] => 1997-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4080 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/726/05726263.pdf [firstpage_image] =>[orig_patent_app_number] => 791372 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/791372
Molecular weight truncation and color control in macromonomers Jan 29, 1997 Issued
Array ( [id] => 3758810 [patent_doc_number] => 05721279 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-02-24 [patent_title] => 'Manufacture of cation exchange resins by pressurized sulfonation' [patent_app_type] => 1 [patent_app_number] => 8/789451 [patent_app_country] => US [patent_app_date] => 1997-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2452 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/721/05721279.pdf [firstpage_image] =>[orig_patent_app_number] => 789451 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/789451
Manufacture of cation exchange resins by pressurized sulfonation Jan 26, 1997 Issued
Array ( [id] => 3794729 [patent_doc_number] => 05780563 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-07-14 [patent_title] => 'Supported lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions' [patent_app_type] => 1 [patent_app_number] => 8/788315 [patent_app_country] => US [patent_app_date] => 1997-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6623 [patent_no_of_claims] => 8 [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] => patents/05/780/05780563.pdf [firstpage_image] =>[orig_patent_app_number] => 788315 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/788315
Supported lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions Jan 23, 1997 Issued
Array ( [id] => 3690285 [patent_doc_number] => 05691421 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-11-25 [patent_title] => 'High moisture adsorptive and desorptive fine particles and process for producing the same' [patent_app_type] => 1 [patent_app_number] => 8/787878 [patent_app_country] => US [patent_app_date] => 1997-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3063 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/691/05691421.pdf [firstpage_image] =>[orig_patent_app_number] => 787878 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/787878
High moisture adsorptive and desorptive fine particles and process for producing the same Jan 22, 1997 Issued
Array ( [id] => 3878788 [patent_doc_number] => 05798096 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-08-25 [patent_title] => 'Biocompatible hydrogel' [patent_app_type] => 1 [patent_app_number] => 8/776731 [patent_app_country] => US [patent_app_date] => 1997-01-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 9104 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/798/05798096.pdf [firstpage_image] =>[orig_patent_app_number] => 776731 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/776731
Biocompatible hydrogel Jan 22, 1997 Issued
08/785255 SOFT COAT FILM Jan 16, 1997 Abandoned
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