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] => 1542900 [patent_doc_number] => 06372685 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-04-16 [patent_title] => 'Powders of silica-oxide and mixed silica-oxide and method of preparing same' [patent_app_type] => B1 [patent_app_number] => 09/557437 [patent_app_country] => US [patent_app_date] => 2000-04-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 14736 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/372/06372685.pdf [firstpage_image] =>[orig_patent_app_number] => 09557437 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/557437
Powders of silica-oxide and mixed silica-oxide and method of preparing same Apr 24, 2000 Issued
Array ( [id] => 1398553 [patent_doc_number] => 06541558 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-04-01 [patent_title] => 'Thermoplastic polymers with dispersed fluorocarbon additives' [patent_app_type] => B1 [patent_app_number] => 09/553609 [patent_app_country] => US [patent_app_date] => 2000-04-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2900 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/541/06541558.pdf [firstpage_image] =>[orig_patent_app_number] => 09553609 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/553609
Thermoplastic polymers with dispersed fluorocarbon additives Apr 19, 2000 Issued
Array ( [id] => 1470529 [patent_doc_number] => 06407185 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-06-18 [patent_title] => 'Process for the preparation of a composition containing ethylene polymers, composition containing ethylene polymers and use thereof' [patent_app_type] => B1 [patent_app_number] => 09/549581 [patent_app_country] => US [patent_app_date] => 2000-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4962 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 348 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/407/06407185.pdf [firstpage_image] =>[orig_patent_app_number] => 09549581 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/549581
Process for the preparation of a composition containing ethylene polymers, composition containing ethylene polymers and use thereof Apr 13, 2000 Issued
Array ( [id] => 1478309 [patent_doc_number] => 06344522 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-02-05 [patent_title] => 'Process for the preparation of a composition containing ethylene polymers, composition containing ethylene polymers and use thereof' [patent_app_type] => B1 [patent_app_number] => 09/549580 [patent_app_country] => US [patent_app_date] => 2000-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4957 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 200 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/344/06344522.pdf [firstpage_image] =>[orig_patent_app_number] => 09549580 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/549580
Process for the preparation of a composition containing ethylene polymers, composition containing ethylene polymers and use thereof Apr 13, 2000 Issued
09/529237 METHOD FOR PRODUCING SUPPORTED TRANSITION METAL CATALYSTS Apr 9, 2000 Abandoned
Array ( [id] => 1521645 [patent_doc_number] => 06414098 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-07-02 [patent_title] => 'Catalyst system for olefin polymerization' [patent_app_type] => B1 [patent_app_number] => 09/543968 [patent_app_country] => US [patent_app_date] => 2000-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 7887 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/414/06414098.pdf [firstpage_image] =>[orig_patent_app_number] => 09543968 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/543968
Catalyst system for olefin polymerization Apr 6, 2000 Issued
Array ( [id] => 1419265 [patent_doc_number] => 06518375 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-02-11 [patent_title] => 'Catalyst for the production of ethylene polymer and process for producing ethylene polymer' [patent_app_type] => B1 [patent_app_number] => 09/541899 [patent_app_country] => US [patent_app_date] => 2000-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 18967 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/518/06518375.pdf [firstpage_image] =>[orig_patent_app_number] => 09541899 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/541899
Catalyst for the production of ethylene polymer and process for producing ethylene polymer Apr 2, 2000 Issued
Array ( [id] => 1478307 [patent_doc_number] => 06451726 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-09-17 [patent_title] => 'Pre-polymerized catalyst components for the polymerization of olefins' [patent_app_type] => B1 [patent_app_number] => 09/509657 [patent_app_country] => US [patent_app_date] => 2000-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8291 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/451/06451726.pdf [firstpage_image] =>[orig_patent_app_number] => 09509657 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/509657
Pre-polymerized catalyst components for the polymerization of olefins Mar 29, 2000 Issued
Array ( [id] => 1504628 [patent_doc_number] => 06465594 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-10-15 [patent_title] => 'Phosphine derivative and polymer thereof and transition metal complex comprising the same' [patent_app_type] => B1 [patent_app_number] => 09/539413 [patent_app_country] => US [patent_app_date] => 2000-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8372 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 39 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/465/06465594.pdf [firstpage_image] =>[orig_patent_app_number] => 09539413 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/539413
Phosphine derivative and polymer thereof and transition metal complex comprising the same Mar 29, 2000 Issued
Array ( [id] => 1582077 [patent_doc_number] => 06423792 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-07-23 [patent_title] => 'Production of polyethylene' [patent_app_type] => B1 [patent_app_number] => 09/538250 [patent_app_country] => US [patent_app_date] => 2000-03-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 4813 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/423/06423792.pdf [firstpage_image] =>[orig_patent_app_number] => 09538250 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/538250
Production of polyethylene Mar 28, 2000 Issued
Array ( [id] => 1131468 [patent_doc_number] => 06787618 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-09-07 [patent_title] => 'Metallocene compound and high molecular weight copolymers of propylene and olefins having two or four to thirty-two carbon atoms' [patent_app_type] => B1 [patent_app_number] => 09/534588 [patent_app_country] => US [patent_app_date] => 2000-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15920 [patent_no_of_claims] => 41 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/787/06787618.pdf [firstpage_image] =>[orig_patent_app_number] => 09534588 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/534588
Metallocene compound and high molecular weight copolymers of propylene and olefins having two or four to thirty-two carbon atoms Mar 26, 2000 Issued
Array ( [id] => 1376925 [patent_doc_number] => 06559087 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-05-06 [patent_title] => 'Method and apparatus for the continuous treatment of catalyst and catalyst support material' [patent_app_type] => B1 [patent_app_number] => 09/536356 [patent_app_country] => US [patent_app_date] => 2000-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2614 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/559/06559087.pdf [firstpage_image] =>[orig_patent_app_number] => 09536356 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/536356
Method and apparatus for the continuous treatment of catalyst and catalyst support material Mar 26, 2000 Issued
Array ( [id] => 1586829 [patent_doc_number] => 06359085 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-03-19 [patent_title] => 'Process for production of ethylene polymers' [patent_app_type] => B1 [patent_app_number] => 09/522845 [patent_app_country] => US [patent_app_date] => 2000-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3525 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/359/06359085.pdf [firstpage_image] =>[orig_patent_app_number] => 09522845 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/522845
Process for production of ethylene polymers Mar 9, 2000 Issued
Array ( [id] => 4274369 [patent_doc_number] => 06323298 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-11-27 [patent_title] => 'Propylene-based polymer, method for its production, composition thereof, catalyst component for polymerization, and method for its production' [patent_app_type] => 1 [patent_app_number] => 9/519750 [patent_app_country] => US [patent_app_date] => 2000-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 12476 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/323/06323298.pdf [firstpage_image] =>[orig_patent_app_number] => 519750 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/519750
Propylene-based polymer, method for its production, composition thereof, catalyst component for polymerization, and method for its production Mar 5, 2000 Issued
Array ( [id] => 4354264 [patent_doc_number] => 06291550 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-09-18 [patent_title] => 'Solventless polyurethane no-brake foundry binder' [patent_app_type] => 1 [patent_app_number] => 9/519395 [patent_app_country] => US [patent_app_date] => 2000-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3428 [patent_no_of_claims] => 7 [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/06/291/06291550.pdf [firstpage_image] =>[orig_patent_app_number] => 519395 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/519395
Solventless polyurethane no-brake foundry binder Mar 2, 2000 Issued
Array ( [id] => 1546271 [patent_doc_number] => 06444763 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-09-03 [patent_title] => 'Polymerization of olefins' [patent_app_type] => B1 [patent_app_number] => 09/517457 [patent_app_country] => US [patent_app_date] => 2000-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 19196 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/444/06444763.pdf [firstpage_image] =>[orig_patent_app_number] => 09517457 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/517457
Polymerization of olefins Mar 1, 2000 Issued
Array ( [id] => 1582095 [patent_doc_number] => 06423796 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-07-23 [patent_title] => 'Process for the preparation of substantially amorphous alpha-olefin polymers and compositions containing them and process for the preparation of bridged ligand' [patent_app_type] => B1 [patent_app_number] => 09/486881 [patent_app_country] => US [patent_app_date] => 2000-03-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 10736 [patent_no_of_claims] => 32 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/423/06423796.pdf [firstpage_image] =>[orig_patent_app_number] => 09486881 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/486881
Process for the preparation of substantially amorphous alpha-olefin polymers and compositions containing them and process for the preparation of bridged ligand Mar 1, 2000 Issued
Array ( [id] => 4338772 [patent_doc_number] => 06333388 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-12-25 [patent_title] => 'Aluminum compound-containing solid catalyst component, catalyst for olefin polymerization and method for producing olefin polymer' [patent_app_type] => 1 [patent_app_number] => 9/516028 [patent_app_country] => US [patent_app_date] => 2000-02-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9134 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/333/06333388.pdf [firstpage_image] =>[orig_patent_app_number] => 516028 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/516028
Aluminum compound-containing solid catalyst component, catalyst for olefin polymerization and method for producing olefin polymer Feb 28, 2000 Issued
Array ( [id] => 4324354 [patent_doc_number] => 06331620 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-12-18 [patent_title] => 'Solid catalyst components for olefin polymerization, catalysts for olefin polymerization and process for producing olefin polymers' [patent_app_type] => 1 [patent_app_number] => 9/463999 [patent_app_country] => US [patent_app_date] => 2000-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 6245 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 70 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/331/06331620.pdf [firstpage_image] =>[orig_patent_app_number] => 463999 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/463999
Solid catalyst components for olefin polymerization, catalysts for olefin polymerization and process for producing olefin polymers Feb 21, 2000 Issued
Array ( [id] => 4410172 [patent_doc_number] => 06239239 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-05-29 [patent_title] => 'Quinolinoxy and pyridinoxy single-site catalysts containing benzyl ligands' [patent_app_type] => 1 [patent_app_number] => 9/506023 [patent_app_country] => US [patent_app_date] => 2000-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2722 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 16 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/239/06239239.pdf [firstpage_image] =>[orig_patent_app_number] => 506023 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/506023
Quinolinoxy and pyridinoxy single-site catalysts containing benzyl ligands Feb 16, 2000 Issued
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