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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
08/221201 SUPPORTED LEWIS ACID CATALYSTS FOR HYDROCARBON CONVERSION REACTIONS Mar 30, 1994 Abandoned
Array ( [id] => 3429243 [patent_doc_number] => 05463004 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-10-31 [patent_title] => 'Process for polymerizing conjugated dienes with lithium-tin-nitrogen initiators' [patent_app_type] => 1 [patent_app_number] => 8/217632 [patent_app_country] => US [patent_app_date] => 1994-03-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6425 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 404 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/463/05463004.pdf [firstpage_image] =>[orig_patent_app_number] => 217632 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/217632
Process for polymerizing conjugated dienes with lithium-tin-nitrogen initiators Mar 24, 1994 Issued
Array ( [id] => 3458109 [patent_doc_number] => 05401810 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-03-28 [patent_title] => 'Strength resins for paper' [patent_app_type] => 1 [patent_app_number] => 8/210408 [patent_app_country] => US [patent_app_date] => 1994-03-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9166 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 204 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/401/05401810.pdf [firstpage_image] =>[orig_patent_app_number] => 210408 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/210408
Strength resins for paper Mar 17, 1994 Issued
Array ( [id] => 3418128 [patent_doc_number] => 05453493 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-09-26 [patent_title] => 'Method of precipitating proteins from aqueous media with a polyhydroxy polycarboxylic acid' [patent_app_type] => 1 [patent_app_number] => 8/207274 [patent_app_country] => US [patent_app_date] => 1994-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5797 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 161 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/453/05453493.pdf [firstpage_image] =>[orig_patent_app_number] => 207274 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/207274
Method of precipitating proteins from aqueous media with a polyhydroxy polycarboxylic acid Mar 6, 1994 Issued
Array ( [id] => 3662581 [patent_doc_number] => 05648442 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-07-15 [patent_title] => 'Polymeric surface coatings' [patent_app_type] => 1 [patent_app_number] => 8/175348 [patent_app_country] => US [patent_app_date] => 1994-03-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 26713 [patent_no_of_claims] => 42 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/648/05648442.pdf [firstpage_image] =>[orig_patent_app_number] => 175348 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/175348
Polymeric surface coatings Mar 6, 1994 Issued
Array ( [id] => 3417950 [patent_doc_number] => 05393857 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-02-28 [patent_title] => 'Polymer scale preventive agent' [patent_app_type] => 1 [patent_app_number] => 8/205385 [patent_app_country] => US [patent_app_date] => 1994-03-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6188 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/393/05393857.pdf [firstpage_image] =>[orig_patent_app_number] => 205385 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/205385
Polymer scale preventive agent Mar 3, 1994 Issued
Array ( [id] => 3519831 [patent_doc_number] => 05506319 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-04-09 [patent_title] => 'Vinyl-substituted benzylorganotin compound and a polymer thereof' [patent_app_type] => 1 [patent_app_number] => 8/204458 [patent_app_country] => US [patent_app_date] => 1994-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 10946 [patent_no_of_claims] => 8 [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/05/506/05506319.pdf [firstpage_image] =>[orig_patent_app_number] => 204458 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/204458
Vinyl-substituted benzylorganotin compound and a polymer thereof Mar 1, 1994 Issued
Array ( [id] => 3104437 [patent_doc_number] => 05448000 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-09-05 [patent_title] => 'End-quenching the living polymerization of isobutylene with acetyl sulfate' [patent_app_type] => 1 [patent_app_number] => 8/197972 [patent_app_country] => US [patent_app_date] => 1994-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1838 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/448/05448000.pdf [firstpage_image] =>[orig_patent_app_number] => 197972 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/197972
End-quenching the living polymerization of isobutylene with acetyl sulfate Feb 16, 1994 Issued
Array ( [id] => 3110038 [patent_doc_number] => 05407996 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-04-18 [patent_title] => 'Method for producing ceramics using crosslinked N-vinylcarboxylic and amide resin' [patent_app_type] => 1 [patent_app_number] => 8/197747 [patent_app_country] => US [patent_app_date] => 1994-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14001 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 222 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/407/05407996.pdf [firstpage_image] =>[orig_patent_app_number] => 197747 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/197747
Method for producing ceramics using crosslinked N-vinylcarboxylic and amide resin Feb 16, 1994 Issued
08/197030 BICOMPATIBLE POLYISOPRENE-POLYURETHANE INTERPENETRATING POLYMER NETWORK COMPOSITIONS AND MEDICAL DEVICES MADE THEREFROM Feb 15, 1994 Abandoned
08/197279 ANISOTROPIC LIQUID CRYSTALLINE POLYMER FILMS Feb 15, 1994 Abandoned
Array ( [id] => 3615048 [patent_doc_number] => 05534606 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-07-09 [patent_title] => 'Rigid cycloolefin copolymer film' [patent_app_type] => 1 [patent_app_number] => 8/195084 [patent_app_country] => US [patent_app_date] => 1994-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 6042 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/534/05534606.pdf [firstpage_image] =>[orig_patent_app_number] => 195084 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/195084
Rigid cycloolefin copolymer film Feb 13, 1994 Issued
08/195559 PROCESS FOR PREPARING CYCLOOLEFIN POLYMERS Feb 13, 1994 Abandoned
08/195558 PROCESS FOR PREPARING CYCLOOLEFIN COPOLYMERS Feb 13, 1994 Abandoned
08/195916 PROCESS FOR PREPARING CYCLOOLEFIN COPOLYMERS Feb 9, 1994 Abandoned
08/195918 FIBERS MADE OF CYCLOOLEFIN COPOLYMERS Feb 9, 1994 Abandoned
Array ( [id] => 3006792 [patent_doc_number] => 05374699 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-12-20 [patent_title] => 'Thermosetting resin composition' [patent_app_type] => 1 [patent_app_number] => 8/192582 [patent_app_country] => US [patent_app_date] => 1994-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12794 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 21 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/374/05374699.pdf [firstpage_image] =>[orig_patent_app_number] => 192582 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/192582
Thermosetting resin composition Feb 6, 1994 Issued
Array ( [id] => 3488967 [patent_doc_number] => 05475074 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1995-12-12 [patent_title] => 'Polymerizable composition, organic glass and ophthalmic lens' [patent_app_type] => 1 [patent_app_number] => 8/187475 [patent_app_country] => US [patent_app_date] => 1994-01-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11464 [patent_no_of_claims] => 22 [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/05/475/05475074.pdf [firstpage_image] =>[orig_patent_app_number] => 187475 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/187475
Polymerizable composition, organic glass and ophthalmic lens Jan 27, 1994 Issued
08/188004 TREATMENT OF ORGANIC COMPOUNDS TO REDUCE CHLORINE LEVEL Jan 27, 1994 Abandoned
Array ( [id] => 2995558 [patent_doc_number] => 05367031 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1994-11-22 [patent_title] => 'Oxidizing resin for iodide conversion and retention' [patent_app_type] => 1 [patent_app_number] => 8/187176 [patent_app_country] => US [patent_app_date] => 1994-01-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2797 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/367/05367031.pdf [firstpage_image] =>[orig_patent_app_number] => 187176 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/187176
Oxidizing resin for iodide conversion and retention Jan 24, 1994 Issued
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