Search

Eric Chang

Examiner (ID: 15894, Phone: (571)272-3671 , Office: P/2116 )

Most Active Art Unit
2116
Art Unit(s)
2186, 2116, 2185
Total Applications
657
Issued Applications
458
Pending Applications
14
Abandoned Applications
185

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 6315925 [patent_doc_number] => 20100242723 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-09-30 [patent_title] => 'Blend Polymer Membranes Comprising Thermally Rearranged Polymers Derived from Aromatic Polyimides Containing Ortho-Positioned Functional Groups' [patent_app_type] => utility [patent_app_number] => 12/412639 [patent_app_country] => US [patent_app_date] => 2009-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11220 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0242/20100242723.pdf [firstpage_image] =>[orig_patent_app_number] => 12412639 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/412639
Blend polymer membranes comprising thermally rearranged polymers derived from aromatic polyimides containing ortho-positioned functional groups Mar 26, 2009 Issued
Array ( [id] => 22718 [patent_doc_number] => 07799874 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-09-21 [patent_title] => 'Catalytic compositions' [patent_app_type] => utility [patent_app_number] => 12/411406 [patent_app_country] => US [patent_app_date] => 2009-03-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5831 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/799/07799874.pdf [firstpage_image] =>[orig_patent_app_number] => 12411406 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/411406
Catalytic compositions Mar 25, 2009 Issued
Array ( [id] => 6114256 [patent_doc_number] => 20110190469 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-08-04 [patent_title] => 'ACETYLENIC POLYAMIDE' [patent_app_type] => utility [patent_app_number] => 13/120020 [patent_app_country] => US [patent_app_date] => 2009-02-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5119 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0190/20110190469.pdf [firstpage_image] =>[orig_patent_app_number] => 13120020 [rel_patent_id] =>[rel_patent_doc_number] =>)
13/120020
Acetylenic polyamide Feb 24, 2009 Issued
Array ( [id] => 8621577 [patent_doc_number] => 08354492 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2013-01-15 [patent_title] => 'Preparation of cast polyamides using special activators' [patent_app_type] => utility [patent_app_number] => 12/372125 [patent_app_country] => US [patent_app_date] => 2009-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6090 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 128 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12372125 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/372125
Preparation of cast polyamides using special activators Feb 16, 2009 Issued
Array ( [id] => 6541802 [patent_doc_number] => 20100204515 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-08-12 [patent_title] => 'POLYCARBODIIMIDES HAVING ONIUM SALT GROUPS' [patent_app_type] => utility [patent_app_number] => 12/370100 [patent_app_country] => US [patent_app_date] => 2009-02-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11413 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0204/20100204515.pdf [firstpage_image] =>[orig_patent_app_number] => 12370100 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/370100
Polycarbodiimides having onium salt groups Feb 11, 2009 Issued
Array ( [id] => 10001498 [patent_doc_number] => 09045576 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2015-06-02 [patent_title] => 'Mixed charge copolymers and hydrogels' [patent_app_type] => utility [patent_app_number] => 12/367744 [patent_app_country] => US [patent_app_date] => 2009-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 16 [patent_no_of_words] => 9392 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 12367744 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/367744
Mixed charge copolymers and hydrogels Feb 8, 2009 Issued
Array ( [id] => 6444645 [patent_doc_number] => 20100283047 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-11-11 [patent_title] => 'PERYLENE-IMIDE SEMICONDUCTOR POLYMERS' [patent_app_type] => utility [patent_app_number] => 12/812531 [patent_app_country] => US [patent_app_date] => 2009-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 15353 [patent_no_of_claims] => 33 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0283/20100283047.pdf [firstpage_image] =>[orig_patent_app_number] => 12812531 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/812531
Perylene-imide semiconductor polymers Feb 4, 2009 Issued
Array ( [id] => 6007274 [patent_doc_number] => 20110059305 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-10 [patent_title] => 'POLYIMIDE PRECURSOR COMPOSITION, POLYIMIDE FILM, AND TRANSPARENT FLEXIBLE FILM' [patent_app_type] => utility [patent_app_number] => 12/918312 [patent_app_country] => US [patent_app_date] => 2009-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9110 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0059/20110059305.pdf [firstpage_image] =>[orig_patent_app_number] => 12918312 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/918312
Polyimide precursor composition, polyimide film, and transparent flexible film Jan 25, 2009 Issued
Array ( [id] => 5275383 [patent_doc_number] => 20090127515 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-05-21 [patent_title] => 'PI-CONJUGATED MOLECULES' [patent_app_type] => utility [patent_app_number] => 12/356571 [patent_app_country] => US [patent_app_date] => 2009-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 24 [patent_no_of_words] => 4532 [patent_no_of_claims] => 27 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0127/20090127515.pdf [firstpage_image] =>[orig_patent_app_number] => 12356571 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/356571
PI-CONJUGATED MOLECULES Jan 20, 2009 Abandoned
Array ( [id] => 5278300 [patent_doc_number] => 20090130432 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-05-21 [patent_title] => 'HEAT-RESISTANT RESIN' [patent_app_type] => utility [patent_app_number] => 12/350764 [patent_app_country] => US [patent_app_date] => 2009-01-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 6192 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0130/20090130432.pdf [firstpage_image] =>[orig_patent_app_number] => 12350764 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/350764
Heat-resistant resin Jan 7, 2009 Issued
Array ( [id] => 6291741 [patent_doc_number] => 20100159335 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-06-24 [patent_title] => 'Branched rod-coil polyimide - poly( alkylene oxide) copolymers and electrolyte compositions' [patent_app_type] => utility [patent_app_number] => 12/317232 [patent_app_country] => US [patent_app_date] => 2008-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5455 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0159/20100159335.pdf [firstpage_image] =>[orig_patent_app_number] => 12317232 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/317232
Branched rod-coil polyimide—poly( alkylene oxide) copolymers and electrolyte compositions Dec 21, 2008 Issued
Array ( [id] => 6203105 [patent_doc_number] => 20110065891 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-03-17 [patent_title] => 'POLYTHIOETHERIMIDES AND METHOD FOR PRODUCING THEREOF' [patent_app_type] => utility [patent_app_number] => 12/809993 [patent_app_country] => US [patent_app_date] => 2008-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 7308 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0065/20110065891.pdf [firstpage_image] =>[orig_patent_app_number] => 12809993 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/809993
POLYTHIOETHERIMIDES AND METHOD FOR PRODUCING THEREOF Dec 18, 2008 Abandoned
Array ( [id] => 5515654 [patent_doc_number] => 20090215961 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-08-27 [patent_title] => 'BISMALEIMIDE RESIN SYSTEM WITH IMPROVED MANUFACTURING PROPERTIES' [patent_app_type] => utility [patent_app_number] => 12/336997 [patent_app_country] => US [patent_app_date] => 2008-12-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6264 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 10 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0215/20090215961.pdf [firstpage_image] =>[orig_patent_app_number] => 12336997 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/336997
Bismaleimide resin system with improved manufacturing properties Dec 16, 2008 Issued
Array ( [id] => 7682092 [patent_doc_number] => 20100022716 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-01-28 [patent_title] => 'METHOD AND FORMULA FOR FORMING HYPER-BRANCHED POLYMER' [patent_app_type] => utility [patent_app_number] => 12/334334 [patent_app_country] => US [patent_app_date] => 2008-12-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 7192 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0022/20100022716.pdf [firstpage_image] =>[orig_patent_app_number] => 12334334 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/334334
Method and formula for forming hyper-branched polymer Dec 11, 2008 Issued
Array ( [id] => 6341964 [patent_doc_number] => 20100247888 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-09-30 [patent_title] => 'POLYAMIC ACID SOLUTION COMPOSITION HAVING CARBON BLACK DISPERSED THEREIN, PROCESS FOR PRODUCTION OF SEMICONDUCTIVE POLYIMIDE RESIN BELT USING THE COMPOSITION, AND SEMICONDUCTIVE POLYIMIDE RESIN BELT' [patent_app_type] => utility [patent_app_number] => 12/734960 [patent_app_country] => US [patent_app_date] => 2008-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 10555 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0247/20100247888.pdf [firstpage_image] =>[orig_patent_app_number] => 12734960 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/734960
Polyamic acid solution composition having carbon black dispersed therein, process for production of semiconductive polyimide resin belt using the composition, and semiconductive polyimide resin belt Dec 3, 2008 Issued
Array ( [id] => 6196921 [patent_doc_number] => 20110028679 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-02-03 [patent_title] => 'Polyamides Prepared From Long-Chain Dicarboxylic Acids and Methods for Making the Polyamides' [patent_app_type] => utility [patent_app_number] => 12/744725 [patent_app_country] => US [patent_app_date] => 2008-11-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 4374 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0028/20110028679.pdf [firstpage_image] =>[orig_patent_app_number] => 12744725 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/744725
Polyamides Prepared From Long-Chain Dicarboxylic Acids and Methods for Making the Polyamides Nov 24, 2008 Abandoned
Array ( [id] => 5576200 [patent_doc_number] => 20090143562 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-06-04 [patent_title] => 'PROCESS TO MAKE POLY(TRIMETHYLENE CARBONATE) GLYCOL' [patent_app_type] => utility [patent_app_number] => 12/277633 [patent_app_country] => US [patent_app_date] => 2008-11-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3450 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0143/20090143562.pdf [firstpage_image] =>[orig_patent_app_number] => 12277633 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/277633
Process to make poly(trimethylene carbonate) glycol Nov 24, 2008 Issued
Array ( [id] => 7652056 [patent_doc_number] => 20110301325 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2011-12-08 [patent_title] => 'Preparation of PHA (Polyhydroxyalkanoates) From a Citric Residue' [patent_app_type] => utility [patent_app_number] => 12/996155 [patent_app_country] => US [patent_app_date] => 2008-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 5385 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 19 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0301/20110301325.pdf [firstpage_image] =>[orig_patent_app_number] => 12996155 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/996155
Preparation of PHA (polyhydroxyalkanoates) from a citric residue Nov 17, 2008 Issued
Array ( [id] => 6389557 [patent_doc_number] => 20100317797 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-12-16 [patent_title] => 'PARTICULATE CATALYST AND CATALYST/STABILIZER SYSTEMS FOR PRODUCING HIGH-MOLECULAR-WEIGHT HOMOPOLYESTERS AND COPOLYESTERS OF L-, D- OR D,L-LACTIC ACID' [patent_app_type] => utility [patent_app_number] => 12/742185 [patent_app_country] => US [patent_app_date] => 2008-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7786 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0317/20100317797.pdf [firstpage_image] =>[orig_patent_app_number] => 12742185 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/742185
PARTICULATE CATALYST AND CATALYST/STABILIZER SYSTEMS FOR PRODUCING HIGH-MOLECULAR-WEIGHT HOMOPOLYESTERS AND COPOLYESTERS OF L-, D- OR D,L-LACTIC ACID Nov 13, 2008 Abandoned
Array ( [id] => 6353699 [patent_doc_number] => 20100331512 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2010-12-30 [patent_title] => 'METHOD FOR PRODUCING CYCLIC DIESTERS OF L-, D- AND D,L-LACTIC ACID' [patent_app_type] => utility [patent_app_number] => 12/742361 [patent_app_country] => US [patent_app_date] => 2008-11-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6246 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0331/20100331512.pdf [firstpage_image] =>[orig_patent_app_number] => 12742361 [rel_patent_id] =>[rel_patent_doc_number] =>)
12/742361
Method for producing cyclic diesters of L-, D- and D,L-lactic acid Nov 13, 2008 Issued
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