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] => 2848429 [patent_doc_number] => 05110886 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-05-05 [patent_title] => 'Compatibilizing agent and polymer blend composition using the same' [patent_app_type] => 1 [patent_app_number] => 7/650588 [patent_app_country] => US [patent_app_date] => 1991-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6485 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 46 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/110/05110886.pdf [firstpage_image] =>[orig_patent_app_number] => 650588 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/650588
Compatibilizing agent and polymer blend composition using the same Feb 4, 1991 Issued
07/646715 PROCESS FOR PREPARATION OF A POLYMER HAVING REACTIVE TERMINAL GROUP Feb 4, 1991 Abandoned
Array ( [id] => 2814897 [patent_doc_number] => 05086142 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-02-04 [patent_title] => 'Copolymer acting as thickening agent for aqueous preparations having a pH above 5.5, a method for its preparation and its use as a thickening agent' [patent_app_type] => 1 [patent_app_number] => 7/648571 [patent_app_country] => US [patent_app_date] => 1991-01-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5392 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/086/05086142.pdf [firstpage_image] =>[orig_patent_app_number] => 648571 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/648571
Copolymer acting as thickening agent for aqueous preparations having a pH above 5.5, a method for its preparation and its use as a thickening agent Jan 30, 1991 Issued
Array ( [id] => 2935742 [patent_doc_number] => 05229467 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-20 [patent_title] => 'Copolymers containing amino groups, process for their preparation and their use in coating agents' [patent_app_type] => 1 [patent_app_number] => 7/640399 [patent_app_country] => US [patent_app_date] => 1991-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6601 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 313 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/229/05229467.pdf [firstpage_image] =>[orig_patent_app_number] => 640399 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/640399
Copolymers containing amino groups, process for their preparation and their use in coating agents Jan 21, 1991 Issued
Array ( [id] => 2798848 [patent_doc_number] => 05114612 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-05-19 [patent_title] => 'Liquid crystal polyester thermosets' [patent_app_type] => 1 [patent_app_number] => 7/644856 [patent_app_country] => US [patent_app_date] => 1991-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 15 [patent_no_of_words] => 5539 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/114/05114612.pdf [firstpage_image] =>[orig_patent_app_number] => 644856 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/644856
Liquid crystal polyester thermosets Jan 21, 1991 Issued
07/746541 CYCLIC CARBONYL CONTAINING COMPOUNDS (C-2582) Jan 18, 1991 Abandoned
07/634198 COATING COMPOSITIONS AND POLYANHYDRIDES FOR USE THEREIN Jan 17, 1991 Abandoned
Array ( [id] => 2853116 [patent_doc_number] => 05126409 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-06-30 [patent_title] => 'Polyglutarimides with improved properties' [patent_app_type] => 1 [patent_app_number] => 7/638586 [patent_app_country] => US [patent_app_date] => 1991-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4691 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/126/05126409.pdf [firstpage_image] =>[orig_patent_app_number] => 638586 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/638586
Polyglutarimides with improved properties Jan 7, 1991 Issued
Array ( [id] => 2830918 [patent_doc_number] => 05175193 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-12-29 [patent_title] => 'Process for the preparation of weakly acid cation exchange resins' [patent_app_type] => 1 [patent_app_number] => 7/638465 [patent_app_country] => US [patent_app_date] => 1991-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2358 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/175/05175193.pdf [firstpage_image] =>[orig_patent_app_number] => 638465 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/638465
Process for the preparation of weakly acid cation exchange resins Jan 6, 1991 Issued
Array ( [id] => 2948452 [patent_doc_number] => 05180798 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-19 [patent_title] => 'Process for production of water-absorbent resin' [patent_app_type] => 1 [patent_app_number] => 7/637155 [patent_app_country] => US [patent_app_date] => 1991-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6473 [patent_no_of_claims] => 16 [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] => patents/05/180/05180798.pdf [firstpage_image] =>[orig_patent_app_number] => 637155 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/637155
Process for production of water-absorbent resin Jan 2, 1991 Issued
Array ( [id] => 2908447 [patent_doc_number] => 05216106 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-01 [patent_title] => 'Method of making silethynyl polymers' [patent_app_type] => 1 [patent_app_number] => 7/636174 [patent_app_country] => US [patent_app_date] => 1990-12-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2789 [patent_no_of_claims] => 13 [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/05/216/05216106.pdf [firstpage_image] =>[orig_patent_app_number] => 636174 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/636174
Method of making silethynyl polymers Dec 30, 1990 Issued
Array ( [id] => 2913057 [patent_doc_number] => 05237017 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-17 [patent_title] => 'Process for producing imidized acrylic resins' [patent_app_type] => 1 [patent_app_number] => 7/634507 [patent_app_country] => US [patent_app_date] => 1990-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6168 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 22 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/237/05237017.pdf [firstpage_image] =>[orig_patent_app_number] => 634507 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/634507
Process for producing imidized acrylic resins Dec 26, 1990 Issued
Array ( [id] => 2842770 [patent_doc_number] => 05137977 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-08-11 [patent_title] => 'Polymer composition' [patent_app_type] => 1 [patent_app_number] => 7/634683 [patent_app_country] => US [patent_app_date] => 1990-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 3033 [patent_no_of_claims] => 4 [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/05/137/05137977.pdf [firstpage_image] =>[orig_patent_app_number] => 634683 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/634683
Polymer composition Dec 26, 1990 Issued
07/632302 AIR CURING POLYMER COMPOSITIONS Dec 20, 1990 Abandoned
Array ( [id] => 2784974 [patent_doc_number] => 05141966 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-08-25 [patent_title] => 'Metalchelating, hydrophilic polymer' [patent_app_type] => 1 [patent_app_number] => 7/625399 [patent_app_country] => US [patent_app_date] => 1990-12-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4242 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/141/05141966.pdf [firstpage_image] =>[orig_patent_app_number] => 625399 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/625399
Metalchelating, hydrophilic polymer Dec 10, 1990 Issued
Array ( [id] => 2596687 [patent_doc_number] => 04902077 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Hydraulic brake system' [patent_app_type] => 1 [patent_app_number] => 7/624623 [patent_app_country] => US [patent_app_date] => 1984-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3278 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902077.pdf [firstpage_image] =>[orig_patent_app_number] => 624623 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/624623
Ion-selective electrodes Dec 9, 1990 Issued
Array ( [id] => 2596687 [patent_doc_number] => 04902077 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Hydraulic brake system' [patent_app_type] => 1 [patent_app_number] => 7/624623 [patent_app_country] => US [patent_app_date] => 1984-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3278 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902077.pdf [firstpage_image] =>[orig_patent_app_number] => 624623 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/624623
Ion-selective electrodes Dec 9, 1990 Issued
07/625321 POLYMERIZABLE SURFACTANT Dec 9, 1990 Abandoned
Array ( [id] => 2596687 [patent_doc_number] => 04902077 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Hydraulic brake system' [patent_app_type] => 1 [patent_app_number] => 7/624623 [patent_app_country] => US [patent_app_date] => 1984-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3278 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902077.pdf [firstpage_image] =>[orig_patent_app_number] => 624623 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/624623
Ion-selective electrodes Dec 9, 1990 Issued
Array ( [id] => 2596687 [patent_doc_number] => 04902077 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1990-02-20 [patent_title] => 'Hydraulic brake system' [patent_app_type] => 1 [patent_app_number] => 7/624623 [patent_app_country] => US [patent_app_date] => 1984-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 3278 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/04/902/04902077.pdf [firstpage_image] =>[orig_patent_app_number] => 624623 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/624623
Ion-selective electrodes Dec 9, 1990 Issued
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