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] => 1357261 [patent_doc_number] => 06576727 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-06-10 [patent_title] => 'Catalyst system for gas phase polymerization of conjugated dienes' [patent_app_type] => B1 [patent_app_number] => 09/600283 [patent_app_country] => US [patent_app_date] => 2000-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5475 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 287 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/576/06576727.pdf [firstpage_image] =>[orig_patent_app_number] => 09600283 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/600283
Catalyst system for gas phase polymerization of conjugated dienes Jul 12, 2000 Issued
Array ( [id] => 1236316 [patent_doc_number] => 06689851 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-02-10 [patent_title] => 'Rheology-modified polyolefins' [patent_app_type] => B1 [patent_app_number] => 09/614030 [patent_app_country] => US [patent_app_date] => 2000-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 16384 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/689/06689851.pdf [firstpage_image] =>[orig_patent_app_number] => 09614030 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/614030
Rheology-modified polyolefins Jul 10, 2000 Issued
Array ( [id] => 1217185 [patent_doc_number] => 06706833 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-03-16 [patent_title] => 'Polymers incorporating covalently attached organoimido polyoxometalates' [patent_app_type] => B1 [patent_app_number] => 09/609863 [patent_app_country] => US [patent_app_date] => 2000-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3161 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 15 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/706/06706833.pdf [firstpage_image] =>[orig_patent_app_number] => 09609863 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/609863
Polymers incorporating covalently attached organoimido polyoxometalates Jul 5, 2000 Issued
Array ( [id] => 1282618 [patent_doc_number] => 06642340 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-11-04 [patent_title] => 'Process for preparing an ethylene/-olefin copolymer' [patent_app_type] => B1 [patent_app_number] => 09/609119 [patent_app_country] => US [patent_app_date] => 2000-06-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7155 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 305 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/642/06642340.pdf [firstpage_image] =>[orig_patent_app_number] => 09609119 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/609119
Process for preparing an ethylene/-olefin copolymer Jun 29, 2000 Issued
Array ( [id] => 1479329 [patent_doc_number] => 06451942 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-09-17 [patent_title] => 'Substrates carrying polymers of linked sandwich coordination compounds and methods of use thereof' [patent_app_type] => B1 [patent_app_number] => 09/605587 [patent_app_country] => US [patent_app_date] => 2000-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 46 [patent_figures_cnt] => 52 [patent_no_of_words] => 40252 [patent_no_of_claims] => 46 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/451/06451942.pdf [firstpage_image] =>[orig_patent_app_number] => 09605587 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/605587
Substrates carrying polymers of linked sandwich coordination compounds and methods of use thereof Jun 27, 2000 Issued
Array ( [id] => 1528635 [patent_doc_number] => 06479601 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-11-12 [patent_title] => 'Transition metal catalysts for diene polymerizations' [patent_app_type] => B1 [patent_app_number] => 09/604363 [patent_app_country] => US [patent_app_date] => 2000-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5721 [patent_no_of_claims] => 18 [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/06/479/06479601.pdf [firstpage_image] =>[orig_patent_app_number] => 09604363 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/604363
Transition metal catalysts for diene polymerizations Jun 26, 2000 Issued
Array ( [id] => 1560646 [patent_doc_number] => 06437063 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-08-20 [patent_title] => 'Process for preparing polypropylene' [patent_app_type] => B1 [patent_app_number] => 09/530689 [patent_app_country] => US [patent_app_date] => 2000-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 8577 [patent_no_of_claims] => 52 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/437/06437063.pdf [firstpage_image] =>[orig_patent_app_number] => 09530689 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/530689
Process for preparing polypropylene Jun 22, 2000 Issued
Array ( [id] => 1262083 [patent_doc_number] => 06664351 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-12-16 [patent_title] => 'Ethylene copolymers, process for the preparation of ethylene-based polymers and catalyst system used therein' [patent_app_type] => B1 [patent_app_number] => 09/603139 [patent_app_country] => US [patent_app_date] => 2000-06-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 9238 [patent_no_of_claims] => 12 [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/06/664/06664351.pdf [firstpage_image] =>[orig_patent_app_number] => 09603139 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/603139
Ethylene copolymers, process for the preparation of ethylene-based polymers and catalyst system used therein Jun 22, 2000 Issued
Array ( [id] => 1454484 [patent_doc_number] => 06462151 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-10-08 [patent_title] => 'Method of removing and recovering boron trifluoride with metal fluoride and process for polyolefin production using the same' [patent_app_type] => B1 [patent_app_number] => 09/582242 [patent_app_country] => US [patent_app_date] => 2000-06-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 24864 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/462/06462151.pdf [firstpage_image] =>[orig_patent_app_number] => 09582242 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/582242
Method of removing and recovering boron trifluoride with metal fluoride and process for polyolefin production using the same Jun 21, 2000 Issued
Array ( [id] => 1451151 [patent_doc_number] => 06455647 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-09-24 [patent_title] => 'Solid catalyst for olefin polymerization and process for producing olefin polymer with the same' [patent_app_type] => B1 [patent_app_number] => 09/581042 [patent_app_country] => US [patent_app_date] => 2000-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7618 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/455/06455647.pdf [firstpage_image] =>[orig_patent_app_number] => 09581042 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/581042
Solid catalyst for olefin polymerization and process for producing olefin polymer with the same Jun 7, 2000 Issued
Array ( [id] => 7634601 [patent_doc_number] => 06657018 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-12-02 [patent_title] => 'Polycarbonate-polysiloxane block copolymers' [patent_app_type] => B1 [patent_app_number] => 09/585117 [patent_app_country] => US [patent_app_date] => 2000-06-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3830 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 7 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/657/06657018.pdf [firstpage_image] =>[orig_patent_app_number] => 09585117 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/585117
Polycarbonate-polysiloxane block copolymers May 31, 2000 Issued
Array ( [id] => 1475522 [patent_doc_number] => 06388029 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-05-14 [patent_title] => 'Process for obtaining polyolefins' [patent_app_type] => B1 [patent_app_number] => 09/584518 [patent_app_country] => US [patent_app_date] => 2000-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 7116 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 803 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/388/06388029.pdf [firstpage_image] =>[orig_patent_app_number] => 09584518 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/584518
Process for obtaining polyolefins May 30, 2000 Issued
09/554944 POLYMERIZATION CATALYST FOR OLEFIN MONOMERS May 21, 2000 Abandoned
Array ( [id] => 1600654 [patent_doc_number] => 06475945 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-11-05 [patent_title] => 'Functionalized catalyst supports and supported catalyst systems' [patent_app_type] => B1 [patent_app_number] => 09/554805 [patent_app_country] => US [patent_app_date] => 2000-05-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10262 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 19 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/475/06475945.pdf [firstpage_image] =>[orig_patent_app_number] => 09554805 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/554805
Functionalized catalyst supports and supported catalyst systems May 17, 2000 Issued
Array ( [id] => 1589733 [patent_doc_number] => 06482906 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-11-19 [patent_title] => 'Process for preparing and using neodymium neodecanoate' [patent_app_type] => B1 [patent_app_number] => 09/571157 [patent_app_country] => US [patent_app_date] => 2000-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5449 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/482/06482906.pdf [firstpage_image] =>[orig_patent_app_number] => 09571157 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/571157
Process for preparing and using neodymium neodecanoate May 15, 2000 Issued
09/485195 VINYL SULPHONE MODIFIED POLYMER May 3, 2000 Abandoned
Array ( [id] => 1266861 [patent_doc_number] => 06652440 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-11-25 [patent_title] => 'Electroactive polymers of high sulfur content for use in electrochemical cells' [patent_app_type] => B1 [patent_app_number] => 09/565184 [patent_app_country] => US [patent_app_date] => 2000-05-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9215 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 88 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/652/06652440.pdf [firstpage_image] =>[orig_patent_app_number] => 09565184 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/565184
Electroactive polymers of high sulfur content for use in electrochemical cells May 2, 2000 Issued
Array ( [id] => 1566321 [patent_doc_number] => 06376418 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-04-23 [patent_title] => 'Process and catalyst for producing polyolefins having low molecular weight' [patent_app_type] => B1 [patent_app_number] => 09/559775 [patent_app_country] => US [patent_app_date] => 2000-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 5618 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/376/06376418.pdf [firstpage_image] =>[orig_patent_app_number] => 09559775 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/559775
Process and catalyst for producing polyolefins having low molecular weight Apr 26, 2000 Issued
Array ( [id] => 1375423 [patent_doc_number] => 06562914 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-05-13 [patent_title] => 'Process for making propylene homo or copolymers' [patent_app_type] => B1 [patent_app_number] => 09/559783 [patent_app_country] => US [patent_app_date] => 2000-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4911 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/562/06562914.pdf [firstpage_image] =>[orig_patent_app_number] => 09559783 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/559783
Process for making propylene homo or copolymers Apr 26, 2000 Issued
Array ( [id] => 1240578 [patent_doc_number] => 06686433 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-02-03 [patent_title] => 'Dual donor catalyst system for the polymerization of olefins' [patent_app_type] => B1 [patent_app_number] => 09/559158 [patent_app_country] => US [patent_app_date] => 2000-04-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5635 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/686/06686433.pdf [firstpage_image] =>[orig_patent_app_number] => 09559158 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/559158
Dual donor catalyst system for the polymerization of olefins Apr 25, 2000 Issued
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