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
08/029491 HIGH IONIC CONDUCTANCE ION EXCHANGE MEMBRANES AND THEIR PREPARATION Mar 10, 1993 Pending
Array ( [id] => 3018886 [patent_doc_number] => 05302623 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-12 [patent_title] => 'Method of stabilizing cation-exchange resins against oxidative degradation' [patent_app_type] => 1 [patent_app_number] => 8/025006 [patent_app_country] => US [patent_app_date] => 1993-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6716 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/302/05302623.pdf [firstpage_image] =>[orig_patent_app_number] => 025006 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/025006
Method of stabilizing cation-exchange resins against oxidative degradation Mar 1, 1993 Issued
08/024031 AIR CURING POLYMER COMPOSITIONS Feb 28, 1993 Abandoned
Array ( [id] => 3462949 [patent_doc_number] => 05468803 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-11-21 [patent_title] => 'Medical implement, polymer composition, and optical material' [patent_app_type] => 1 [patent_app_number] => 8/024294 [patent_app_country] => US [patent_app_date] => 1993-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14665 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/468/05468803.pdf [firstpage_image] =>[orig_patent_app_number] => 024294 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/024294
Medical implement, polymer composition, and optical material Feb 28, 1993 Issued
Array ( [id] => 2946508 [patent_doc_number] => 05262244 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-16 [patent_title] => 'Hydrophilic copolymers and their use in reprography' [patent_app_type] => 1 [patent_app_number] => 8/024840 [patent_app_country] => US [patent_app_date] => 1993-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3836 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/262/05262244.pdf [firstpage_image] =>[orig_patent_app_number] => 024840 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/024840
Hydrophilic copolymers and their use in reprography Feb 28, 1993 Issued
Array ( [id] => 1441455 [patent_doc_number] => 06335406 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-01-01 [patent_title] => 'Method for production of absorbent resin excelling in durability' [patent_app_type] => B1 [patent_app_number] => 08/026167 [patent_app_country] => US [patent_app_date] => 1993-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 10537 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/335/06335406.pdf [firstpage_image] =>[orig_patent_app_number] => 08026167 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/026167
Method for production of absorbent resin excelling in durability Feb 28, 1993 Issued
Array ( [id] => 2936762 [patent_doc_number] => 05247039 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-21 [patent_title] => 'Method of making silethynyl polymers' [patent_app_type] => 1 [patent_app_number] => 8/020493 [patent_app_country] => US [patent_app_date] => 1993-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2797 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/247/05247039.pdf [firstpage_image] =>[orig_patent_app_number] => 020493 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/020493
Method of making silethynyl polymers Feb 21, 1993 Issued
08/015928 POLYAMINE CONDENSATES OF STYRENE-ACRYLIC ACID AND STYRENE-MALEIC ANHYDRIDE COPOLYMERS AS CORRROSION INHIBITORS Feb 9, 1993 Abandoned
Array ( [id] => 3018100 [patent_doc_number] => 05326644 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-07-05 [patent_title] => 'Repulpable pressure-sensitive adhesive compositions' [patent_app_type] => 1 [patent_app_number] => 8/014119 [patent_app_country] => US [patent_app_date] => 1993-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4780 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/326/05326644.pdf [firstpage_image] =>[orig_patent_app_number] => 014119 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/014119
Repulpable pressure-sensitive adhesive compositions Feb 4, 1993 Issued
Array ( [id] => 3033986 [patent_doc_number] => 05328936 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-07-12 [patent_title] => 'Polymerization process for making porous polymeric particles' [patent_app_type] => 1 [patent_app_number] => 8/012082 [patent_app_country] => US [patent_app_date] => 1993-02-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3303 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/328/05328936.pdf [firstpage_image] =>[orig_patent_app_number] => 012082 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/012082
Polymerization process for making porous polymeric particles Jan 31, 1993 Issued
Array ( [id] => 2990953 [patent_doc_number] => 05346939 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-09-13 [patent_title] => 'Water curable resin compositions' [patent_app_type] => 1 [patent_app_number] => 8/008743 [patent_app_country] => US [patent_app_date] => 1993-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 9854 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/346/05346939.pdf [firstpage_image] =>[orig_patent_app_number] => 008743 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/008743
Water curable resin compositions Jan 24, 1993 Issued
Array ( [id] => 3494180 [patent_doc_number] => 05561168 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-10-01 [patent_title] => 'Iodide removal process' [patent_app_type] => 1 [patent_app_number] => 8/004543 [patent_app_country] => US [patent_app_date] => 1993-01-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 4736 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/561/05561168.pdf [firstpage_image] =>[orig_patent_app_number] => 004543 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/004543
Iodide removal process Jan 13, 1993 Issued
Array ( [id] => 3077397 [patent_doc_number] => 05322896 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-21 [patent_title] => 'Process for producing improved water absorbing resin and resin made by the same' [patent_app_type] => 1 [patent_app_number] => 8/002346 [patent_app_country] => US [patent_app_date] => 1993-01-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5922 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/322/05322896.pdf [firstpage_image] =>[orig_patent_app_number] => 002346 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/002346
Process for producing improved water absorbing resin and resin made by the same Jan 5, 1993 Issued
07/998257 VINYL ACETATE MODIFIED SUSPENSION POLYMER BEADS, ADHESIVES MADE THEREFROM, AND A METHOD OF MAKING Dec 30, 1992 Abandoned
Array ( [id] => 3029287 [patent_doc_number] => 05317057 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-05-31 [patent_title] => '(Halomethyl vinyl arene)-modified elastomers and compositions containing them having reduced hysteresis properties' [patent_app_type] => 1 [patent_app_number] => 7/998204 [patent_app_country] => US [patent_app_date] => 1992-12-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5088 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/317/05317057.pdf [firstpage_image] =>[orig_patent_app_number] => 998204 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/998204
(Halomethyl vinyl arene)-modified elastomers and compositions containing them having reduced hysteresis properties Dec 29, 1992 Issued
Array ( [id] => 3073526 [patent_doc_number] => 05364910 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-11-15 [patent_title] => 'Material for forming coating film' [patent_app_type] => 1 [patent_app_number] => 7/998657 [patent_app_country] => US [patent_app_date] => 1992-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3055 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/364/05364910.pdf [firstpage_image] =>[orig_patent_app_number] => 998657 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/998657
Material for forming coating film Dec 28, 1992 Issued
Array ( [id] => 2891355 [patent_doc_number] => 05240771 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-31 [patent_title] => 'Copolymers based on C.sub.1 -C.sub.8 -alkyl acrylates and/or methacrylates and preparation and use thereof' [patent_app_type] => 1 [patent_app_number] => 7/997560 [patent_app_country] => US [patent_app_date] => 1992-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5671 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 154 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/240/05240771.pdf [firstpage_image] =>[orig_patent_app_number] => 997560 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/997560
Copolymers based on C.sub.1 -C.sub.8 -alkyl acrylates and/or methacrylates and preparation and use thereof Dec 27, 1992 Issued
07/994631 N-ARYL-SUBSTITUTED POLY(METH)ACRYLIMIDES Dec 20, 1992 Abandoned
Array ( [id] => 3057578 [patent_doc_number] => 05357002 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-10-18 [patent_title] => 'Polymer containing chelating groups, process for preparing it and its use in water purification' [patent_app_type] => 1 [patent_app_number] => 7/992716 [patent_app_country] => US [patent_app_date] => 1992-12-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7287 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/357/05357002.pdf [firstpage_image] =>[orig_patent_app_number] => 992716 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/992716
Polymer containing chelating groups, process for preparing it and its use in water purification Dec 17, 1992 Issued
07/992871 AMORPHOUS OLEFIN POLYMERS, COPOLYMERS, METHODS OF PREPARATION AND DERIVATIVES THEREOF Dec 16, 1992 Abandoned
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