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] => 2827472 [patent_doc_number] => 05116921 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-05-26 [patent_title] => 'Superabsorbent crosslinked ampholytic ion pair copolymers' [patent_app_type] => 1 [patent_app_number] => 7/783735 [patent_app_country] => US [patent_app_date] => 1991-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5204 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/116/05116921.pdf [firstpage_image] =>[orig_patent_app_number] => 783735 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/783735
Superabsorbent crosslinked ampholytic ion pair copolymers Oct 27, 1991 Issued
Array ( [id] => 3087153 [patent_doc_number] => 05284924 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-08 [patent_title] => 'Process for the preparation of polyolefin/acrylonitrile coploymers and polyolefin/acrylic acid or substituted acrylic acid/acrylonitrile terpolymers' [patent_app_type] => 1 [patent_app_number] => 7/781791 [patent_app_country] => US [patent_app_date] => 1991-10-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 4739 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/284/05284924.pdf [firstpage_image] =>[orig_patent_app_number] => 781791 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/781791
Process for the preparation of polyolefin/acrylonitrile coploymers and polyolefin/acrylic acid or substituted acrylic acid/acrylonitrile terpolymers Oct 22, 1991 Issued
Array ( [id] => 3036504 [patent_doc_number] => 05300587 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-04-05 [patent_title] => 'Oil repellent polymeric composition and use thereof, for preparing formed articles having surfaces endowed with a high stability formed articles having surfaces endowed with a high stability to solvents and a high resistance to soiling' [patent_app_type] => 1 [patent_app_number] => 7/781995 [patent_app_country] => US [patent_app_date] => 1991-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2405 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/300/05300587.pdf [firstpage_image] =>[orig_patent_app_number] => 781995 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/781995
Oil repellent polymeric composition and use thereof, for preparing formed articles having surfaces endowed with a high stability formed articles having surfaces endowed with a high stability to solvents and a high resistance to soiling Oct 17, 1991 Issued
Array ( [id] => 2962827 [patent_doc_number] => 05274041 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-28 [patent_title] => 'Golf ball and process for producing the same' [patent_app_type] => 1 [patent_app_number] => 7/778244 [patent_app_country] => US [patent_app_date] => 1991-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 9 [patent_no_of_words] => 10164 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/274/05274041.pdf [firstpage_image] =>[orig_patent_app_number] => 778244 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/778244
Golf ball and process for producing the same Oct 16, 1991 Issued
Array ( [id] => 2919351 [patent_doc_number] => 05192616 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-09 [patent_title] => 'Macromolecular monomers from living polymers' [patent_app_type] => 1 [patent_app_number] => 7/775684 [patent_app_country] => US [patent_app_date] => 1991-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 11547 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/192/05192616.pdf [firstpage_image] =>[orig_patent_app_number] => 775684 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/775684
Macromolecular monomers from living polymers Oct 9, 1991 Issued
Array ( [id] => 2976546 [patent_doc_number] => 05208304 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-04 [patent_title] => 'Stereoregular cyclopolymers and method' [patent_app_type] => 1 [patent_app_number] => 7/772562 [patent_app_country] => US [patent_app_date] => 1991-10-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3216 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/208/05208304.pdf [firstpage_image] =>[orig_patent_app_number] => 772562 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/772562
Stereoregular cyclopolymers and method Oct 6, 1991 Issued
Array ( [id] => 3104509 [patent_doc_number] => 05448004 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-09-05 [patent_title] => 'Process for producing vinyl chloride polymer' [patent_app_type] => 1 [patent_app_number] => 7/770774 [patent_app_country] => US [patent_app_date] => 1991-10-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3519 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 190 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/448/05448004.pdf [firstpage_image] =>[orig_patent_app_number] => 770774 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/770774
Process for producing vinyl chloride polymer Oct 3, 1991 Issued
Array ( [id] => 2973342 [patent_doc_number] => 05194516 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-03-16 [patent_title] => 'Process for modifying visosity of ethylene copolymers' [patent_app_type] => 1 [patent_app_number] => 7/769603 [patent_app_country] => US [patent_app_date] => 1991-10-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4339 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 160 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/194/05194516.pdf [firstpage_image] =>[orig_patent_app_number] => 769603 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/769603
Process for modifying visosity of ethylene copolymers Sep 30, 1991 Issued
Array ( [id] => 2908377 [patent_doc_number] => 05216102 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-01 [patent_title] => 'Process for producing polyacetylene' [patent_app_type] => 1 [patent_app_number] => 7/767580 [patent_app_country] => US [patent_app_date] => 1991-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1459 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/216/05216102.pdf [firstpage_image] =>[orig_patent_app_number] => 767580 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/767580
Process for producing polyacetylene Sep 29, 1991 Issued
Array ( [id] => 2848447 [patent_doc_number] => 05110887 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-05-05 [patent_title] => 'Superabsorbent crosslinked ampholytic ion pair copolymers' [patent_app_type] => 1 [patent_app_number] => 7/761572 [patent_app_country] => US [patent_app_date] => 1991-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4944 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/110/05110887.pdf [firstpage_image] =>[orig_patent_app_number] => 761572 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/761572
Superabsorbent crosslinked ampholytic ion pair copolymers Sep 17, 1991 Issued
07/761403 POLYMER AMMONIUM BORATES AND PROCESSES FOR THEIR PREPARATION Sep 16, 1991 Abandoned
Array ( [id] => 2921919 [patent_doc_number] => 05235028 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-08-10 [patent_title] => 'Polyethylene glycol derivatives for solid-phase applications' [patent_app_type] => 1 [patent_app_number] => 7/760768 [patent_app_country] => US [patent_app_date] => 1991-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 5621 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/235/05235028.pdf [firstpage_image] =>[orig_patent_app_number] => 760768 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/760768
Polyethylene glycol derivatives for solid-phase applications Sep 15, 1991 Issued
Array ( [id] => 2969114 [patent_doc_number] => 05202400 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-13 [patent_title] => 'Process for the production of highly water absorptive polymers' [patent_app_type] => 1 [patent_app_number] => 7/746991 [patent_app_country] => US [patent_app_date] => 1991-08-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6403 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/202/05202400.pdf [firstpage_image] =>[orig_patent_app_number] => 746991 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/746991
Process for the production of highly water absorptive polymers Aug 18, 1991 Issued
Array ( [id] => 2913968 [patent_doc_number] => 05178961 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-12 [patent_title] => 'Thermally crosslinkable hydrophilic copolymers and their use in reprography' [patent_app_type] => 1 [patent_app_number] => 7/731464 [patent_app_country] => US [patent_app_date] => 1991-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3811 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 25 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/178/05178961.pdf [firstpage_image] =>[orig_patent_app_number] => 731464 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/731464
Thermally crosslinkable hydrophilic copolymers and their use in reprography Jul 16, 1991 Issued
Array ( [id] => 2927911 [patent_doc_number] => 05219664 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-15 [patent_title] => 'Hydrophilic copolymers and their use in reprography' [patent_app_type] => 1 [patent_app_number] => 7/731462 [patent_app_country] => US [patent_app_date] => 1991-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3592 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 201 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/219/05219664.pdf [firstpage_image] =>[orig_patent_app_number] => 731462 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/731462
Hydrophilic copolymers and their use in reprography Jul 16, 1991 Issued
Array ( [id] => 2914007 [patent_doc_number] => 05178963 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-01-12 [patent_title] => 'Hydrophilic copolymers and their use in reprography' [patent_app_type] => 1 [patent_app_number] => 7/731465 [patent_app_country] => US [patent_app_date] => 1991-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3567 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/178/05178963.pdf [firstpage_image] =>[orig_patent_app_number] => 731465 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/731465
Hydrophilic copolymers and their use in reprography Jul 16, 1991 Issued
07/731463 HYDROPHILIC COPOLYMERS AND THEIR USE IN REPROGRAPHY Jul 16, 1991 Abandoned
Array ( [id] => 2935706 [patent_doc_number] => 05229465 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-20 [patent_title] => 'Oxygen-permeable polymeric membranes' [patent_app_type] => 1 [patent_app_number] => 7/722890 [patent_app_country] => US [patent_app_date] => 1991-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3010 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/229/05229465.pdf [firstpage_image] =>[orig_patent_app_number] => 722890 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/722890
Oxygen-permeable polymeric membranes Jun 27, 1991 Issued
Array ( [id] => 3085513 [patent_doc_number] => 05280095 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-01-18 [patent_title] => 'Fine particulate crosslinked type N-vinylamide resin and microgel, process for preparing same, and use thereof' [patent_app_type] => 1 [patent_app_number] => 7/723038 [patent_app_country] => US [patent_app_date] => 1991-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11920 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 453 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/280/05280095.pdf [firstpage_image] =>[orig_patent_app_number] => 723038 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/723038
Fine particulate crosslinked type N-vinylamide resin and microgel, process for preparing same, and use thereof Jun 27, 1991 Issued
Array ( [id] => 2870236 [patent_doc_number] => 05162475 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1992-11-10 [patent_title] => 'Polymerizable surfactant' [patent_app_type] => 1 [patent_app_number] => 7/722423 [patent_app_country] => US [patent_app_date] => 1991-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10930 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/162/05162475.pdf [firstpage_image] =>[orig_patent_app_number] => 722423 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/722423
Polymerizable surfactant Jun 26, 1991 Issued
Menu