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] => 4306311 [patent_doc_number] => 06252020 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-06-26 [patent_title] => 'Method for forming nanocomposites' [patent_app_type] => 1 [patent_app_number] => 9/286550 [patent_app_country] => US [patent_app_date] => 1999-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 2225 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 101 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/252/06252020.pdf [firstpage_image] =>[orig_patent_app_number] => 286550 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/286550
Method for forming nanocomposites Apr 4, 1999 Issued
Array ( [id] => 4355057 [patent_doc_number] => 06291602 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-09-18 [patent_title] => 'Ethylene polymer and processes for obtaining it' [patent_app_type] => 1 [patent_app_number] => 9/285069 [patent_app_country] => US [patent_app_date] => 1999-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9259 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 144 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/291/06291602.pdf [firstpage_image] =>[orig_patent_app_number] => 285069 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/285069
Ethylene polymer and processes for obtaining it Apr 1, 1999 Issued
Array ( [id] => 1441473 [patent_doc_number] => 06335411 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-01-01 [patent_title] => 'Ethylene polymer and processes for obtaining it' [patent_app_type] => B1 [patent_app_number] => 09/285068 [patent_app_country] => US [patent_app_date] => 1999-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9240 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/335/06335411.pdf [firstpage_image] =>[orig_patent_app_number] => 09285068 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/285068
Ethylene polymer and processes for obtaining it Apr 1, 1999 Issued
Array ( [id] => 4262464 [patent_doc_number] => 06258908 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-07-10 [patent_title] => 'Polymers of substituted cyclopentenes' [patent_app_type] => 1 [patent_app_number] => 9/277095 [patent_app_country] => US [patent_app_date] => 1999-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9389 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 33 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/258/06258908.pdf [firstpage_image] =>[orig_patent_app_number] => 277095 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/277095
Polymers of substituted cyclopentenes Mar 25, 1999 Issued
Array ( [id] => 1375558 [patent_doc_number] => 06562922 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-05-13 [patent_title] => 'Vicinal hydroxyl group containing copolymer and articles formed therefrom' [patent_app_type] => B1 [patent_app_number] => 09/274376 [patent_app_country] => US [patent_app_date] => 1999-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7326 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/562/06562922.pdf [firstpage_image] =>[orig_patent_app_number] => 09274376 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/274376
Vicinal hydroxyl group containing copolymer and articles formed therefrom Mar 22, 1999 Issued
Array ( [id] => 4406303 [patent_doc_number] => 06232257 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-05-15 [patent_title] => 'Preparation of highly branched, liquid polymers of ethylene and/or .alpha.-olefins in the presence of aluminum-based catalyst systems' [patent_app_type] => 1 [patent_app_number] => 9/273127 [patent_app_country] => US [patent_app_date] => 1999-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3068 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 35 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/232/06232257.pdf [firstpage_image] =>[orig_patent_app_number] => 273127 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/273127
Preparation of highly branched, liquid polymers of ethylene and/or .alpha.-olefins in the presence of aluminum-based catalyst systems Mar 18, 1999 Issued
Array ( [id] => 4306351 [patent_doc_number] => 06252023 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-06-26 [patent_title] => 'Organoborane amine complex inatator systems and polymerizable compositions made therewith' [patent_app_type] => 1 [patent_app_number] => 9/272152 [patent_app_country] => US [patent_app_date] => 1999-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12743 [patent_no_of_claims] => 10 [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/06/252/06252023.pdf [firstpage_image] =>[orig_patent_app_number] => 272152 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/272152
Organoborane amine complex inatator systems and polymerizable compositions made therewith Mar 18, 1999 Issued
Array ( [id] => 4297531 [patent_doc_number] => 06184325 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-02-06 [patent_title] => 'Solvent-free, fine white powders of high molecular weight copolymers of maleic anhydride and a C1-C4 alky vinyl ether without odor or taste' [patent_app_type] => 1 [patent_app_number] => 9/270175 [patent_app_country] => US [patent_app_date] => 1999-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1454 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/184/06184325.pdf [firstpage_image] =>[orig_patent_app_number] => 270175 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/270175
Solvent-free, fine white powders of high molecular weight copolymers of maleic anhydride and a C1-C4 alky vinyl ether without odor or taste Mar 15, 1999 Issued
Array ( [id] => 4385748 [patent_doc_number] => 06262195 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-07-17 [patent_title] => 'Multi-stage process for the polymerization of olefins' [patent_app_type] => 1 [patent_app_number] => 9/265036 [patent_app_country] => US [patent_app_date] => 1999-03-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9905 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 491 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/262/06262195.pdf [firstpage_image] =>[orig_patent_app_number] => 265036 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/265036
Multi-stage process for the polymerization of olefins Mar 8, 1999 Issued
Array ( [id] => 4355149 [patent_doc_number] => 06291609 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-09-18 [patent_title] => 'High temperature olefin polymerization process' [patent_app_type] => 1 [patent_app_number] => 9/261637 [patent_app_country] => US [patent_app_date] => 1999-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5393 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/291/06291609.pdf [firstpage_image] =>[orig_patent_app_number] => 261637 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/261637
High temperature olefin polymerization process Mar 2, 1999 Issued
Array ( [id] => 1501427 [patent_doc_number] => 06486278 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-11-26 [patent_title] => 'Ethylene copolymerization process' [patent_app_type] => B1 [patent_app_number] => 09/251819 [patent_app_country] => US [patent_app_date] => 1999-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7197 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 53 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/486/06486278.pdf [firstpage_image] =>[orig_patent_app_number] => 09251819 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/251819
Ethylene copolymerization process Feb 16, 1999 Issued
Array ( [id] => 6880556 [patent_doc_number] => 20010031843 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2001-10-18 [patent_title] => 'OLEFIN POLYMERIZATION CATALYSTS, THEIR PRODUCTION AND USE' [patent_app_type] => new [patent_app_number] => 09/248147 [patent_app_country] => US [patent_app_date] => 1999-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5874 [patent_no_of_claims] => 54 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 26 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0031/20010031843.pdf [firstpage_image] =>[orig_patent_app_number] => 09248147 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/248147
Olefin polymerization catalysts, their production and use Feb 9, 1999 Issued
Array ( [id] => 4332969 [patent_doc_number] => 06313252 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-11-06 [patent_title] => 'Functionalized ethylene/vinyl or vinylidene aromatic interpolymers' [patent_app_type] => 1 [patent_app_number] => 9/244921 [patent_app_country] => US [patent_app_date] => 1999-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20901 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 409 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/313/06313252.pdf [firstpage_image] =>[orig_patent_app_number] => 244921 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/244921
Functionalized ethylene/vinyl or vinylidene aromatic interpolymers Feb 3, 1999 Issued
Array ( [id] => 4279003 [patent_doc_number] => 06281320 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-08-28 [patent_title] => 'Use of chelatable phenols with metallocene- aluminoxane catalyst systems' [patent_app_type] => 1 [patent_app_number] => 9/244442 [patent_app_country] => US [patent_app_date] => 1999-02-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7706 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 430 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/281/06281320.pdf [firstpage_image] =>[orig_patent_app_number] => 244442 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/244442
Use of chelatable phenols with metallocene- aluminoxane catalyst systems Feb 3, 1999 Issued
Array ( [id] => 1474753 [patent_doc_number] => 06387837 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-05-14 [patent_title] => 'Polymerization-initiating supported systems' [patent_app_type] => B1 [patent_app_number] => 09/244240 [patent_app_country] => US [patent_app_date] => 1999-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3920 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 65 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/387/06387837.pdf [firstpage_image] =>[orig_patent_app_number] => 09244240 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/244240
Polymerization-initiating supported systems Feb 2, 1999 Issued
Array ( [id] => 4352119 [patent_doc_number] => 06214953 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-04-10 [patent_title] => 'Process for the preparation of olefinic polymers using supported metallocene catalyst' [patent_app_type] => 1 [patent_app_number] => 9/230935 [patent_app_country] => US [patent_app_date] => 1999-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5843 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 197 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/214/06214953.pdf [firstpage_image] =>[orig_patent_app_number] => 230935 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/230935
Process for the preparation of olefinic polymers using supported metallocene catalyst Feb 2, 1999 Issued
Array ( [id] => 4187063 [patent_doc_number] => 06160066 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-12-12 [patent_title] => 'Monocyclopentadienyl metal compounds for ethylene-.alpha.-olefin-copolymer production catalysts' [patent_app_type] => 1 [patent_app_number] => 9/243722 [patent_app_country] => US [patent_app_date] => 1999-02-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13730 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 422 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/160/06160066.pdf [firstpage_image] =>[orig_patent_app_number] => 243722 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/243722
Monocyclopentadienyl metal compounds for ethylene-.alpha.-olefin-copolymer production catalysts Feb 2, 1999 Issued
Array ( [id] => 4361997 [patent_doc_number] => 06255418 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-07-03 [patent_title] => 'Catalysts containing organochromium compounds and their use for polymerizing alkenes' [patent_app_type] => 1 [patent_app_number] => 9/230326 [patent_app_country] => US [patent_app_date] => 1999-01-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2893 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 28 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/255/06255418.pdf [firstpage_image] =>[orig_patent_app_number] => 230326 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/230326
Catalysts containing organochromium compounds and their use for polymerizing alkenes Jan 21, 1999 Issued
Array ( [id] => 4108770 [patent_doc_number] => 06022920 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2000-02-08 [patent_title] => 'Method for the production of clear bottles having improved reheat' [patent_app_type] => 1 [patent_app_number] => 9/232307 [patent_app_country] => US [patent_app_date] => 1999-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2610 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 26 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/022/06022920.pdf [firstpage_image] =>[orig_patent_app_number] => 232307 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/232307
Method for the production of clear bottles having improved reheat Jan 14, 1999 Issued
Array ( [id] => 4372920 [patent_doc_number] => 06288192 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-09-11 [patent_title] => 'Olefin polymer, olefin polymerization catalyst and process for producing olefin polymer' [patent_app_type] => 1 [patent_app_number] => 9/228553 [patent_app_country] => US [patent_app_date] => 1999-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 7842 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 29 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/288/06288192.pdf [firstpage_image] =>[orig_patent_app_number] => 228553 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/228553
Olefin polymer, olefin polymerization catalyst and process for producing olefin polymer Jan 11, 1999 Issued
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