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] => 3088956 [patent_doc_number] => 05278244 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-01-11 [patent_title] => 'Macromolecular monomers from living polymers' [patent_app_type] => 1 [patent_app_number] => 7/991471 [patent_app_country] => US [patent_app_date] => 1992-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 11547 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/278/05278244.pdf [firstpage_image] =>[orig_patent_app_number] => 991471 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/991471
Macromolecular monomers from living polymers Dec 15, 1992 Issued
07/987095 PROCESS FOR THE PREPARATION OF ANION EXCHANGE RESINS OF THE POLY (METH) ACRYLAMIDE TYPE Dec 6, 1992 Abandoned
Array ( [id] => 2963989 [patent_doc_number] => 05264528 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-23 [patent_title] => 'Process for the preparation of 4-hydroxystyrene polymers from 4-acetoxystyrene polymers' [patent_app_type] => 1 [patent_app_number] => 7/977475 [patent_app_country] => US [patent_app_date] => 1992-11-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4869 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 24 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/264/05264528.pdf [firstpage_image] =>[orig_patent_app_number] => 977475 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/977475
Process for the preparation of 4-hydroxystyrene polymers from 4-acetoxystyrene polymers Nov 16, 1992 Issued
Array ( [id] => 3089033 [patent_doc_number] => 05278248 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-01-11 [patent_title] => 'Water-soluble polymers and/or copolymers possessing increased biodegradability, and their applications' [patent_app_type] => 1 [patent_app_number] => 7/974280 [patent_app_country] => US [patent_app_date] => 1992-11-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3969 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/278/05278248.pdf [firstpage_image] =>[orig_patent_app_number] => 974280 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/974280
Water-soluble polymers and/or copolymers possessing increased biodegradability, and their applications Nov 9, 1992 Issued
07/974035 POLYMERIZABLE SURFACTANT Nov 9, 1992 Abandoned
Array ( [id] => 3458066 [patent_doc_number] => 05401807 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-03-28 [patent_title] => 'Process of increasing the molecular weight of water soluble acrylate polymers by chain combination' [patent_app_type] => 1 [patent_app_number] => 7/958064 [patent_app_country] => US [patent_app_date] => 1992-10-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5275 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/401/05401807.pdf [firstpage_image] =>[orig_patent_app_number] => 958064 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/958064
Process of increasing the molecular weight of water soluble acrylate polymers by chain combination Oct 7, 1992 Issued
Array ( [id] => 3031187 [patent_doc_number] => 05342901 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-08-30 [patent_title] => 'Film-formable, chelate-forming resin, process for preparation thereof, use thereof and method for forming electrophoretic coating' [patent_app_type] => 1 [patent_app_number] => 7/930524 [patent_app_country] => US [patent_app_date] => 1992-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17677 [patent_no_of_claims] => 7 [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/05/342/05342901.pdf [firstpage_image] =>[orig_patent_app_number] => 930524 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/930524
Film-formable, chelate-forming resin, process for preparation thereof, use thereof and method for forming electrophoretic coating Sep 29, 1992 Issued
Array ( [id] => 3051335 [patent_doc_number] => 05324790 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-28 [patent_title] => 'Esterification of carboxylate containing polymers' [patent_app_type] => 1 [patent_app_number] => 7/953420 [patent_app_country] => US [patent_app_date] => 1992-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3992 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/324/05324790.pdf [firstpage_image] =>[orig_patent_app_number] => 953420 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/953420
Esterification of carboxylate containing polymers Sep 28, 1992 Issued
Array ( [id] => 2886028 [patent_doc_number] => 05268431 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-07 [patent_title] => 'Method for preparing ultra-low molecular weight toner resin' [patent_app_type] => 1 [patent_app_number] => 7/952091 [patent_app_country] => US [patent_app_date] => 1992-09-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3619 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/268/05268431.pdf [firstpage_image] =>[orig_patent_app_number] => 952091 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/952091
Method for preparing ultra-low molecular weight toner resin Sep 27, 1992 Issued
Array ( [id] => 2990670 [patent_doc_number] => 05346924 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-09-13 [patent_title] => 'Heterogeneous ion exchange materials comprising polyethylene of linear low density or high density high molecular weight' [patent_app_type] => 1 [patent_app_number] => 7/949707 [patent_app_country] => US [patent_app_date] => 1992-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6041 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/346/05346924.pdf [firstpage_image] =>[orig_patent_app_number] => 949707 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/949707
Heterogeneous ion exchange materials comprising polyethylene of linear low density or high density high molecular weight Sep 22, 1992 Issued
Array ( [id] => 3019842 [patent_doc_number] => 05288767 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-22 [patent_title] => 'Two-component adhesive composition for the chemical fixing technique' [patent_app_type] => 1 [patent_app_number] => 7/947572 [patent_app_country] => US [patent_app_date] => 1992-09-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2071 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/288/05288767.pdf [firstpage_image] =>[orig_patent_app_number] => 947572 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/947572
Two-component adhesive composition for the chemical fixing technique Sep 20, 1992 Issued
Array ( [id] => 2933423 [patent_doc_number] => 05219950 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-15 [patent_title] => 'Method of crosslinking PVP' [patent_app_type] => 1 [patent_app_number] => 7/945565 [patent_app_country] => US [patent_app_date] => 1992-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2190 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/219/05219950.pdf [firstpage_image] =>[orig_patent_app_number] => 945565 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/945565
Method of crosslinking PVP Sep 15, 1992 Issued
Array ( [id] => 3051387 [patent_doc_number] => 05324793 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-28 [patent_title] => 'Method for making polymethacrylimide polymers' [patent_app_type] => 1 [patent_app_number] => 7/944396 [patent_app_country] => US [patent_app_date] => 1992-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2315 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/324/05324793.pdf [firstpage_image] =>[orig_patent_app_number] => 944396 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/944396
Method for making polymethacrylimide polymers Sep 13, 1992 Issued
07/939596 ION EXCHANGER Sep 1, 1992 Abandoned
Array ( [id] => 3053613 [patent_doc_number] => 05350523 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-09-27 [patent_title] => 'Anion exchange method' [patent_app_type] => 1 [patent_app_number] => 7/936337 [patent_app_country] => US [patent_app_date] => 1992-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 6024 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/350/05350523.pdf [firstpage_image] =>[orig_patent_app_number] => 936337 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/936337
Anion exchange method Aug 27, 1992 Issued
Array ( [id] => 2936419 [patent_doc_number] => 05247021 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-21 [patent_title] => 'Process for preparation of a polymer having reactive terminal group' [patent_app_type] => 1 [patent_app_number] => 7/933903 [patent_app_country] => US [patent_app_date] => 1992-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 6129 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/247/05247021.pdf [firstpage_image] =>[orig_patent_app_number] => 933903 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/933903
Process for preparation of a polymer having reactive terminal group Aug 26, 1992 Issued
Array ( [id] => 2944543 [patent_doc_number] => 05254637 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-19 [patent_title] => 'Thermosetting coating compositions' [patent_app_type] => 1 [patent_app_number] => 7/933548 [patent_app_country] => US [patent_app_date] => 1992-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7472 [patent_no_of_claims] => 31 [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/05/254/05254637.pdf [firstpage_image] =>[orig_patent_app_number] => 933548 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/933548
Thermosetting coating compositions Aug 23, 1992 Issued
07/931165 WEAKLY BASIC ANION EXCHANGERS, PROCESSES FOR THEIR PREPARATION BY AMINOLYSIS AND THEIR USE FOR REMOVING SULPHATE IONS FROM AQUEOUS LIQUIDS Aug 16, 1992 Abandoned
07/927990 NOVEL CYCLIC COMPOUNDS (C-2697) Aug 10, 1992 Abandoned
Array ( [id] => 2905385 [patent_doc_number] => 05248737 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-28 [patent_title] => 'Method of making amine/propylene copolymers' [patent_app_type] => 1 [patent_app_number] => 7/925045 [patent_app_country] => US [patent_app_date] => 1992-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2911 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/248/05248737.pdf [firstpage_image] =>[orig_patent_app_number] => 925045 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/925045
Method of making amine/propylene copolymers Aug 4, 1992 Issued
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