Search

Ling Siu Choi

Supervisory Patent Examiner (ID: 12436, Phone: (571)272-1098 , Office: P/1763 )

Most Active Art Unit
1713
Art Unit(s)
1762, 1713, 1763, 1714, 1796
Total Applications
1478
Issued Applications
1218
Pending Applications
36
Abandoned Applications
224

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 1486006 [patent_doc_number] => 06365689 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-04-02 [patent_title] => 'Propylene/ethylene random copolymer, molding material, and molded article' [patent_app_type] => B1 [patent_app_number] => 09/485618 [patent_app_country] => US [patent_app_date] => 2000-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 13921 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/365/06365689.pdf [firstpage_image] =>[orig_patent_app_number] => 09485618 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/485618
Propylene/ethylene random copolymer, molding material, and molded article Feb 14, 2000 Issued
Array ( [id] => 1376956 [patent_doc_number] => 06559089 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-05-06 [patent_title] => 'Metallocene catalyst component for use in producing isotactic polyolefins' [patent_app_type] => B1 [patent_app_number] => 09/424416 [patent_app_country] => US [patent_app_date] => 2000-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 6306 [patent_no_of_claims] => 81 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 34 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/559/06559089.pdf [firstpage_image] =>[orig_patent_app_number] => 09424416 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/424416
Metallocene catalyst component for use in producing isotactic polyolefins Feb 14, 2000 Issued
Array ( [id] => 1561300 [patent_doc_number] => 06362124 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-03-26 [patent_title] => 'Catalyst component, catalyst for olefin polymerization and process for producing olefin polymer' [patent_app_type] => B1 [patent_app_number] => 09/504779 [patent_app_country] => US [patent_app_date] => 2000-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9642 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/362/06362124.pdf [firstpage_image] =>[orig_patent_app_number] => 09504779 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/504779
Catalyst component, catalyst for olefin polymerization and process for producing olefin polymer Feb 14, 2000 Issued
Array ( [id] => 1536655 [patent_doc_number] => 06337377 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-01-08 [patent_title] => 'Process for producing olefin polymers, olefin-polymerizing catalyst and polyproylene for biaxially oriented film produced with said catalyst' [patent_app_type] => B1 [patent_app_number] => 09/499026 [patent_app_country] => US [patent_app_date] => 2000-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10937 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/337/06337377.pdf [firstpage_image] =>[orig_patent_app_number] => 09499026 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/499026
Process for producing olefin polymers, olefin-polymerizing catalyst and polyproylene for biaxially oriented film produced with said catalyst Feb 6, 2000 Issued
Array ( [id] => 1402903 [patent_doc_number] => 06538080 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-03-25 [patent_title] => 'Gas phase polymerization of olefins' [patent_app_type] => B1 [patent_app_number] => 09/498912 [patent_app_country] => US [patent_app_date] => 2000-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 15918 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 377 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/538/06538080.pdf [firstpage_image] =>[orig_patent_app_number] => 09498912 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/498912
Gas phase polymerization of olefins Feb 3, 2000 Issued
Array ( [id] => 1517854 [patent_doc_number] => 06500906 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-12-31 [patent_title] => 'Olefin polymerization chelate catalyst and olefin polymerization method using the same' [patent_app_type] => B1 [patent_app_number] => 09/497639 [patent_app_country] => US [patent_app_date] => 2000-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6262 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 103 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/500/06500906.pdf [firstpage_image] =>[orig_patent_app_number] => 09497639 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/497639
Olefin polymerization chelate catalyst and olefin polymerization method using the same Feb 2, 2000 Issued
Array ( [id] => 1528644 [patent_doc_number] => 06479604 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-11-12 [patent_title] => 'Diarylethene compound, photochromic diarylethene type copolymer and method for the production of the same' [patent_app_type] => B1 [patent_app_number] => 09/492619 [patent_app_country] => US [patent_app_date] => 2000-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 6978 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/479/06479604.pdf [firstpage_image] =>[orig_patent_app_number] => 09492619 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/492619
Diarylethene compound, photochromic diarylethene type copolymer and method for the production of the same Jan 26, 2000 Issued
Array ( [id] => 1491107 [patent_doc_number] => 06417302 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-07-09 [patent_title] => 'Compounds containing boron and aluminium' [patent_app_type] => B1 [patent_app_number] => 09/463436 [patent_app_country] => US [patent_app_date] => 2000-01-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8754 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 328 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/417/06417302.pdf [firstpage_image] =>[orig_patent_app_number] => 09463436 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/463436
Compounds containing boron and aluminium Jan 26, 2000 Issued
Array ( [id] => 1524346 [patent_doc_number] => 06353071 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-03-05 [patent_title] => 'Processes to produce organo-aluminoxane compositions' [patent_app_type] => B1 [patent_app_number] => 09/489728 [patent_app_country] => US [patent_app_date] => 2000-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4022 [patent_no_of_claims] => 36 [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/06/353/06353071.pdf [firstpage_image] =>[orig_patent_app_number] => 09489728 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/489728
Processes to produce organo-aluminoxane compositions Jan 20, 2000 Issued
Array ( [id] => 1451209 [patent_doc_number] => 06455659 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-09-24 [patent_title] => 'Crystalline polypropylene and molded object and film thereof' [patent_app_type] => B1 [patent_app_number] => 09/462103 [patent_app_country] => US [patent_app_date] => 2000-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9249 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/455/06455659.pdf [firstpage_image] =>[orig_patent_app_number] => 09462103 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/462103
Crystalline polypropylene and molded object and film thereof Jan 12, 2000 Issued
09/462095 CRYSTALLINE POLYPROPYLENE AND MOLDED OBJECT OBTAINED BY MOLDING THE SAME Jan 11, 2000 Abandoned
Array ( [id] => 1419398 [patent_doc_number] => 06518386 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-02-11 [patent_title] => 'Metallocene compounds, process for their preparation thereof, and their use in catalysts for the polymerization of olefins' [patent_app_type] => B1 [patent_app_number] => 09/481047 [patent_app_country] => US [patent_app_date] => 2000-01-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7330 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/518/06518386.pdf [firstpage_image] =>[orig_patent_app_number] => 09481047 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/481047
Metallocene compounds, process for their preparation thereof, and their use in catalysts for the polymerization of olefins Jan 10, 2000 Issued
Array ( [id] => 1450196 [patent_doc_number] => 06455457 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-09-24 [patent_title] => 'Supported polymerization catalyst' [patent_app_type] => B1 [patent_app_number] => 09/479424 [patent_app_country] => US [patent_app_date] => 2000-01-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2503 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/455/06455457.pdf [firstpage_image] =>[orig_patent_app_number] => 09479424 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/479424
Supported polymerization catalyst Jan 6, 2000 Issued
Array ( [id] => 4405742 [patent_doc_number] => 06271167 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-08-07 [patent_title] => 'Catalyst for olefin polymerization and method for preparing polyolefins' [patent_app_type] => 1 [patent_app_number] => 9/478197 [patent_app_country] => US [patent_app_date] => 2000-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7062 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 12 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/271/06271167.pdf [firstpage_image] =>[orig_patent_app_number] => 478197 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/478197
Catalyst for olefin polymerization and method for preparing polyolefins Jan 4, 2000 Issued
Array ( [id] => 1474761 [patent_doc_number] => 06387839 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-05-14 [patent_title] => 'Compound catalyst system for synthesizing polyethylenes or copolymers of ethylene having bimodal or broad molecular weight distributions, process for preparing the same and use of the same' [patent_app_type] => B1 [patent_app_number] => 09/474014 [patent_app_country] => US [patent_app_date] => 1999-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 5952 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 282 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/387/06387839.pdf [firstpage_image] =>[orig_patent_app_number] => 09474014 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/474014
Compound catalyst system for synthesizing polyethylenes or copolymers of ethylene having bimodal or broad molecular weight distributions, process for preparing the same and use of the same Dec 27, 1999 Issued
Array ( [id] => 6409424 [patent_doc_number] => 20020037979 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2002-03-28 [patent_title] => 'MIXED ZIEGLER/METALLOCENE CATALYSTS FOR THE PRODUCTION OF BIMODAL POLYOLEFINS' [patent_app_type] => new [patent_app_number] => 09/473491 [patent_app_country] => US [patent_app_date] => 1999-12-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 9785 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0037/20020037979.pdf [firstpage_image] =>[orig_patent_app_number] => 09473491 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/473491
MIXED ZIEGLER/METALLOCENE CATALYSTS FOR THE PRODUCTION OF BIMODAL POLYOLEFINS Dec 27, 1999 Abandoned
Array ( [id] => 1486003 [patent_doc_number] => 06365688 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-04-02 [patent_title] => 'Organometallic compound, preparation method thereof and process for polymerization of olefins by means of a catalyst composition including the organometallic compound' [patent_app_type] => B1 [patent_app_number] => 09/445956 [patent_app_country] => US [patent_app_date] => 1999-12-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4025 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 14 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/365/06365688.pdf [firstpage_image] =>[orig_patent_app_number] => 09445956 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/445956
Organometallic compound, preparation method thereof and process for polymerization of olefins by means of a catalyst composition including the organometallic compound Dec 15, 1999 Issued
Array ( [id] => 4409048 [patent_doc_number] => 06172168 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-01-09 [patent_title] => 'Process for the preparation of 1-olefin polymers' [patent_app_type] => 1 [patent_app_number] => 9/461475 [patent_app_country] => US [patent_app_date] => 1999-12-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7730 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/172/06172168.pdf [firstpage_image] =>[orig_patent_app_number] => 461475 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/461475
Process for the preparation of 1-olefin polymers Dec 13, 1999 Issued
Array ( [id] => 1441452 [patent_doc_number] => 06335405 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-01-01 [patent_title] => 'Catalysts for olefin polymer production and process for producing olefin polymer' [patent_app_type] => B1 [patent_app_number] => 09/423655 [patent_app_country] => US [patent_app_date] => 1999-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9549 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/335/06335405.pdf [firstpage_image] =>[orig_patent_app_number] => 09423655 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/423655
Catalysts for olefin polymer production and process for producing olefin polymer Dec 12, 1999 Issued
Array ( [id] => 4347834 [patent_doc_number] => 06284851 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-09-04 [patent_title] => 'Cyclopenta[I] phenanthrene-metal complex catalyst systems' [patent_app_type] => 1 [patent_app_number] => 9/445699 [patent_app_country] => US [patent_app_date] => 1999-12-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7944 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 17 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/284/06284851.pdf [firstpage_image] =>[orig_patent_app_number] => 445699 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/445699
Cyclopenta[I] phenanthrene-metal complex catalyst systems Dec 12, 1999 Issued
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