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] => 3045922 [patent_doc_number] => 05286799 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-15 [patent_title] => 'Two-step free radical catalyzed process for the preparation of alkenyl succinic anhydride' [patent_app_type] => 1 [patent_app_number] => 7/918180 [patent_app_country] => US [patent_app_date] => 1992-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4931 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/286/05286799.pdf [firstpage_image] =>[orig_patent_app_number] => 918180 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/918180
Two-step free radical catalyzed process for the preparation of alkenyl succinic anhydride Jul 22, 1992 Issued
Array ( [id] => 3663255 [patent_doc_number] => 05625004 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-04-29 [patent_title] => 'Two-step thermal process for the preparation of alkenyl succinic anhydride' [patent_app_type] => 1 [patent_app_number] => 7/918990 [patent_app_country] => US [patent_app_date] => 1992-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4673 [patent_no_of_claims] => 13 [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/05/625/05625004.pdf [firstpage_image] =>[orig_patent_app_number] => 918990 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/918990
Two-step thermal process for the preparation of alkenyl succinic anhydride Jul 22, 1992 Issued
Array ( [id] => 2908303 [patent_doc_number] => 05216098 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-01 [patent_title] => 'Superabsorbent crosslinked ampholytic ion pair copolymers' [patent_app_type] => 1 [patent_app_number] => 7/918306 [patent_app_country] => US [patent_app_date] => 1992-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4543 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/216/05216098.pdf [firstpage_image] =>[orig_patent_app_number] => 918306 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/918306
Superabsorbent crosslinked ampholytic ion pair copolymers Jul 20, 1992 Issued
Array ( [id] => 3446202 [patent_doc_number] => 05397846 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-03-14 [patent_title] => 'Process for preparing organic compounds carrying tert-butyloxycarbonyl groups' [patent_app_type] => 1 [patent_app_number] => 7/914417 [patent_app_country] => US [patent_app_date] => 1992-07-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2539 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/397/05397846.pdf [firstpage_image] =>[orig_patent_app_number] => 914417 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/914417
Process for preparing organic compounds carrying tert-butyloxycarbonyl groups Jul 16, 1992 Issued
Array ( [id] => 2893918 [patent_doc_number] => 05270420 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-12-14 [patent_title] => 'Stretched molding' [patent_app_type] => 1 [patent_app_number] => 7/908926 [patent_app_country] => US [patent_app_date] => 1992-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11570 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 289 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/270/05270420.pdf [firstpage_image] =>[orig_patent_app_number] => 908926 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/908926
Stretched molding Jul 15, 1992 Issued
Array ( [id] => 2887033 [patent_doc_number] => 05214108 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-05-25 [patent_title] => 'Process for modifying the viscosity of copolymers of ethylene and unsaturated carboxylic acids' [patent_app_type] => 1 [patent_app_number] => 7/912963 [patent_app_country] => US [patent_app_date] => 1992-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5467 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 218 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/214/05214108.pdf [firstpage_image] =>[orig_patent_app_number] => 912963 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/912963
Process for modifying the viscosity of copolymers of ethylene and unsaturated carboxylic acids Jul 9, 1992 Issued
Array ( [id] => 3079173 [patent_doc_number] => 05321065 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-06-14 [patent_title] => 'Degradable plastics film including lignin as active vegetable filler' [patent_app_type] => 1 [patent_app_number] => 7/867718 [patent_app_country] => US [patent_app_date] => 1992-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 987 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/321/05321065.pdf [firstpage_image] =>[orig_patent_app_number] => 867718 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/867718
Degradable plastics film including lignin as active vegetable filler Jul 8, 1992 Issued
Array ( [id] => 2943448 [patent_doc_number] => 05223580 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-06-29 [patent_title] => 'Process for making a charge imbalanced polymer' [patent_app_type] => 1 [patent_app_number] => 7/905607 [patent_app_country] => US [patent_app_date] => 1992-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1178 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/223/05223580.pdf [firstpage_image] =>[orig_patent_app_number] => 905607 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/905607
Process for making a charge imbalanced polymer Jun 28, 1992 Issued
07/899790 POLYMER COMPOUNDS CONTAINING STERICALLY HINDERED AMINO GROUPS, SUITABLE TO BE USED AS STABILIZERS AND POLYMER COMPOSITIONS COMPRISING THEM Jun 16, 1992 Issued
Array ( [id] => 2896030 [patent_doc_number] => 05244926 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-14 [patent_title] => 'Preparation of ion exchange and adsorbent copolymers' [patent_app_type] => 1 [patent_app_number] => 7/899393 [patent_app_country] => US [patent_app_date] => 1992-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2504 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/244/05244926.pdf [firstpage_image] =>[orig_patent_app_number] => 899393 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/899393
Preparation of ion exchange and adsorbent copolymers Jun 15, 1992 Issued
07/896870 MICROCAPSULES Jun 11, 1992 Abandoned
Array ( [id] => 2987911 [patent_doc_number] => 05266652 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-11-30 [patent_title] => 'Resinous composition for powder coating' [patent_app_type] => 1 [patent_app_number] => 7/894757 [patent_app_country] => US [patent_app_date] => 1992-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3321 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/266/05266652.pdf [firstpage_image] =>[orig_patent_app_number] => 894757 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/894757
Resinous composition for powder coating Jun 4, 1992 Issued
Array ( [id] => 3052084 [patent_doc_number] => 05283316 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-02-01 [patent_title] => 'Polymers with high refractive index and low optical dispersion' [patent_app_type] => 1 [patent_app_number] => 7/893908 [patent_app_country] => US [patent_app_date] => 1992-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5394 [patent_no_of_claims] => 1 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 140 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/283/05283316.pdf [firstpage_image] =>[orig_patent_app_number] => 893908 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/893908
Polymers with high refractive index and low optical dispersion Jun 3, 1992 Issued
Array ( [id] => 2996811 [patent_doc_number] => 05362816 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-11-08 [patent_title] => 'High cohesive strength pressure-sensitive adhesives incorporating acetoacetate' [patent_app_type] => 1 [patent_app_number] => 7/894124 [patent_app_country] => US [patent_app_date] => 1992-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6706 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/362/05362816.pdf [firstpage_image] =>[orig_patent_app_number] => 894124 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/894124
High cohesive strength pressure-sensitive adhesives incorporating acetoacetate Jun 3, 1992 Issued
Array ( [id] => 2936744 [patent_doc_number] => 05247038 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-09-21 [patent_title] => 'Polybutylene glycol dimethacrylate and resin composition for cast polymerization' [patent_app_type] => 1 [patent_app_number] => 7/892652 [patent_app_country] => US [patent_app_date] => 1992-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6673 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 81 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/247/05247038.pdf [firstpage_image] =>[orig_patent_app_number] => 892652 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/892652
Polybutylene glycol dimethacrylate and resin composition for cast polymerization Jun 2, 1992 Issued
Array ( [id] => 2980720 [patent_doc_number] => 05204383 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-04-20 [patent_title] => 'Dental adhesives' [patent_app_type] => 1 [patent_app_number] => 7/892725 [patent_app_country] => US [patent_app_date] => 1992-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3280 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/204/05204383.pdf [firstpage_image] =>[orig_patent_app_number] => 892725 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/892725
Dental adhesives May 28, 1992 Issued
Array ( [id] => 2944526 [patent_doc_number] => 05254636 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-10-19 [patent_title] => 'Rapid hydrolysis of crosslinked maleic anhydride/lower alkyl vinyl ether copolymers' [patent_app_type] => 1 [patent_app_number] => 7/889341 [patent_app_country] => US [patent_app_date] => 1992-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2230 [patent_no_of_claims] => 14 [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/05/254/05254636.pdf [firstpage_image] =>[orig_patent_app_number] => 889341 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/889341
Rapid hydrolysis of crosslinked maleic anhydride/lower alkyl vinyl ether copolymers May 27, 1992 Issued
Array ( [id] => 3014868 [patent_doc_number] => 05308876 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-05-03 [patent_title] => 'Materials for removing suspended impurities and use thereof' [patent_app_type] => 1 [patent_app_number] => 7/888431 [patent_app_country] => US [patent_app_date] => 1992-05-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 11 [patent_no_of_words] => 5647 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/308/05308876.pdf [firstpage_image] =>[orig_patent_app_number] => 888431 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/888431
Materials for removing suspended impurities and use thereof May 27, 1992 Issued
07/885544 THERMOSETTING RESIN COMPOSITION May 18, 1992 Abandoned
Array ( [id] => 2935724 [patent_doc_number] => 05229466 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1993-07-20 [patent_title] => 'Powdery absorbing material for aqueous liquids based on water-swellable carboxylate polymers' [patent_app_type] => 1 [patent_app_number] => 7/884344 [patent_app_country] => US [patent_app_date] => 1992-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3855 [patent_no_of_claims] => 10 [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/05/229/05229466.pdf [firstpage_image] =>[orig_patent_app_number] => 884344 [rel_patent_id] =>[rel_patent_doc_number] =>)
07/884344
Powdery absorbing material for aqueous liquids based on water-swellable carboxylate polymers May 17, 1992 Issued
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