Search

Wu C. Cheng

Examiner (ID: 14273)

Most Active Art Unit
1505
Art Unit(s)
1505, 1713, 1612
Total Applications
797
Issued Applications
673
Pending Applications
13
Abandoned Applications
111

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 3883782 [patent_doc_number] => 05798425 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-08-25 [patent_title] => 'Co-polymers based on oxyalkyleneglycol alkenyl ethers and unsaturated dicarboxylic acid derivatives' [patent_app_type] => 1 [patent_app_number] => 8/628057 [patent_app_country] => US [patent_app_date] => 1996-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6813 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 416 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/798/05798425.pdf [firstpage_image] =>[orig_patent_app_number] => 628057 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/628057
Co-polymers based on oxyalkyleneglycol alkenyl ethers and unsaturated dicarboxylic acid derivatives Apr 7, 1996 Issued
Array ( [id] => 3663122 [patent_doc_number] => 05624995 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-04-29 [patent_title] => 'Agent for water treatment containing a polymer for water treatment and a process for producing said polymer' [patent_app_type] => 1 [patent_app_number] => 8/626830 [patent_app_country] => US [patent_app_date] => 1996-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 4434 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/624/05624995.pdf [firstpage_image] =>[orig_patent_app_number] => 626830 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/626830
Agent for water treatment containing a polymer for water treatment and a process for producing said polymer Apr 2, 1996 Issued
Array ( [id] => 3649827 [patent_doc_number] => 05684108 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-11-04 [patent_title] => 'Ethylene-based copolymers and their use as flow improvers in mineral oil middle distillates' [patent_app_type] => 1 [patent_app_number] => 8/615175 [patent_app_country] => US [patent_app_date] => 1996-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4777 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/684/05684108.pdf [firstpage_image] =>[orig_patent_app_number] => 615175 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/615175
Ethylene-based copolymers and their use as flow improvers in mineral oil middle distillates Apr 1, 1996 Issued
Array ( [id] => 3819586 [patent_doc_number] => 05770760 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-06-23 [patent_title] => 'Polymers useful as pH responsive thickeners and monomers therefor' [patent_app_type] => 1 [patent_app_number] => 8/627958 [patent_app_country] => US [patent_app_date] => 1996-04-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4880 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/770/05770760.pdf [firstpage_image] =>[orig_patent_app_number] => 627958 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/627958
Polymers useful as pH responsive thickeners and monomers therefor Apr 1, 1996 Issued
Array ( [id] => 3828583 [patent_doc_number] => 05783678 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-07-21 [patent_title] => 'Acrylic ester derivative and producing of the same and acrylic-ester-based polymer' [patent_app_type] => 1 [patent_app_number] => 8/617586 [patent_app_country] => US [patent_app_date] => 1996-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 28903 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/783/05783678.pdf [firstpage_image] =>[orig_patent_app_number] => 617586 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/617586
Acrylic ester derivative and producing of the same and acrylic-ester-based polymer Mar 18, 1996 Issued
Array ( [id] => 3759518 [patent_doc_number] => 05721326 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-02-24 [patent_title] => 'Polymerizable compositions and method of using same' [patent_app_type] => 1 [patent_app_number] => 8/616831 [patent_app_country] => US [patent_app_date] => 1996-03-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2582 [patent_no_of_claims] => 30 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/721/05721326.pdf [firstpage_image] =>[orig_patent_app_number] => 616831 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/616831
Polymerizable compositions and method of using same Mar 18, 1996 Issued
Array ( [id] => 3625323 [patent_doc_number] => 05608025 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-03-04 [patent_title] => 'Methacrylic copolymers and dispersants for pigments used in non-aqueous paints and varnishes comprising the copolymers' [patent_app_type] => 1 [patent_app_number] => 8/613695 [patent_app_country] => US [patent_app_date] => 1996-03-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4164 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 399 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/608/05608025.pdf [firstpage_image] =>[orig_patent_app_number] => 613695 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/613695
Methacrylic copolymers and dispersants for pigments used in non-aqueous paints and varnishes comprising the copolymers Mar 10, 1996 Issued
Array ( [id] => 3697522 [patent_doc_number] => 05596057 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-01-21 [patent_title] => 'Copolymers, their preparation, and their use in high-solids coating compositions' [patent_app_type] => 1 [patent_app_number] => 8/611550 [patent_app_country] => US [patent_app_date] => 1996-03-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8684 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 665 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/596/05596057.pdf [firstpage_image] =>[orig_patent_app_number] => 611550 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/611550
Copolymers, their preparation, and their use in high-solids coating compositions Mar 5, 1996 Issued
Array ( [id] => 3667759 [patent_doc_number] => 05599886 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-02-04 [patent_title] => 'Liquid toners with hydrocarbon solvents' [patent_app_type] => 1 [patent_app_number] => 8/605575 [patent_app_country] => US [patent_app_date] => 1996-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9269 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 175 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/599/05599886.pdf [firstpage_image] =>[orig_patent_app_number] => 605575 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/605575
Liquid toners with hydrocarbon solvents Feb 21, 1996 Issued
Array ( [id] => 3688209 [patent_doc_number] => 05663258 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-09-02 [patent_title] => 'Strongly swellable, moderately crosslinked copolymers of vinylpyrrolidone and vinyl acetate' [patent_app_type] => 1 [patent_app_number] => 8/603668 [patent_app_country] => US [patent_app_date] => 1996-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3317 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/663/05663258.pdf [firstpage_image] =>[orig_patent_app_number] => 603668 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/603668
Strongly swellable, moderately crosslinked copolymers of vinylpyrrolidone and vinyl acetate Feb 19, 1996 Issued
Array ( [id] => 3879187 [patent_doc_number] => 05747619 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-05-05 [patent_title] => 'Water-soluble, carboxyl-containing copolymers, the preparation thereof and the use thereof as scale inhibitor' [patent_app_type] => 1 [patent_app_number] => 8/596141 [patent_app_country] => US [patent_app_date] => 1996-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5502 [patent_no_of_claims] => 4 [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/05/747/05747619.pdf [firstpage_image] =>[orig_patent_app_number] => 596141 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/596141
Water-soluble, carboxyl-containing copolymers, the preparation thereof and the use thereof as scale inhibitor Feb 19, 1996 Issued
Array ( [id] => 3649576 [patent_doc_number] => 05629397 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-05-13 [patent_title] => '2,6-dimethylphenylmaleimide as a comonomer for styrene copolymers and vinyl chloride copolymers' [patent_app_type] => 1 [patent_app_number] => 8/601475 [patent_app_country] => US [patent_app_date] => 1996-02-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1830 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 22 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/629/05629397.pdf [firstpage_image] =>[orig_patent_app_number] => 601475 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/601475
2,6-dimethylphenylmaleimide as a comonomer for styrene copolymers and vinyl chloride copolymers Feb 13, 1996 Issued
Array ( [id] => 3624873 [patent_doc_number] => 05602220 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1997-02-11 [patent_title] => 'Free radical polymerisation process' [patent_app_type] => 1 [patent_app_number] => 8/596230 [patent_app_country] => US [patent_app_date] => 1996-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4843 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 9 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/602/05602220.pdf [firstpage_image] =>[orig_patent_app_number] => 596230 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/596230
Free radical polymerisation process Feb 8, 1996 Issued
Array ( [id] => 3857330 [patent_doc_number] => 05795582 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-08-18 [patent_title] => 'Adjuvant properties of poly (amidoamine) dendrimers' [patent_app_type] => 1 [patent_app_number] => 8/597938 [patent_app_country] => US [patent_app_date] => 1996-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2755 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/795/05795582.pdf [firstpage_image] =>[orig_patent_app_number] => 597938 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/597938
Adjuvant properties of poly (amidoamine) dendrimers Feb 6, 1996 Issued
Array ( [id] => 3591874 [patent_doc_number] => 05567786 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1996-10-22 [patent_title] => 'Polymerizable composition of vinylpyrrolidone and vinyl caprolactam' [patent_app_type] => 1 [patent_app_number] => 8/595902 [patent_app_country] => US [patent_app_date] => 1996-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1649 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 27 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/567/05567786.pdf [firstpage_image] =>[orig_patent_app_number] => 595902 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/595902
Polymerizable composition of vinylpyrrolidone and vinyl caprolactam Feb 5, 1996 Issued
Array ( [id] => 3844446 [patent_doc_number] => 05708103 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-01-13 [patent_title] => 'Process for producing a polymer of vinylic compounds' [patent_app_type] => 1 [patent_app_number] => 8/592628 [patent_app_country] => US [patent_app_date] => 1996-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6207 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 17 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/708/05708103.pdf [firstpage_image] =>[orig_patent_app_number] => 592628 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/592628
Process for producing a polymer of vinylic compounds Jan 25, 1996 Issued
Array ( [id] => 3807213 [patent_doc_number] => 05830966 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-11-03 [patent_title] => 'Cyclopolymerization monomers and polymers' [patent_app_type] => 1 [patent_app_number] => 8/586858 [patent_app_country] => US [patent_app_date] => 1996-01-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7925 [patent_no_of_claims] => 9 [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/05/830/05830966.pdf [firstpage_image] =>[orig_patent_app_number] => 586858 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/586858
Cyclopolymerization monomers and polymers Jan 25, 1996 Issued
Array ( [id] => 3747819 [patent_doc_number] => 05717046 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-02-10 [patent_title] => 'Retention aids for papermaking' [patent_app_type] => 1 [patent_app_number] => 8/583050 [patent_app_country] => US [patent_app_date] => 1996-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2859 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 111 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/717/05717046.pdf [firstpage_image] =>[orig_patent_app_number] => 583050 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/583050
Retention aids for papermaking Jan 18, 1996 Issued
Array ( [id] => 3794354 [patent_doc_number] => 05726265 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1998-03-10 [patent_title] => 'Thermoplastics having a high heat deflection temperature and improved heat stability' [patent_app_type] => 1 [patent_app_number] => 8/588480 [patent_app_country] => US [patent_app_date] => 1996-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3006 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 44 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/726/05726265.pdf [firstpage_image] =>[orig_patent_app_number] => 588480 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/588480
Thermoplastics having a high heat deflection temperature and improved heat stability Jan 17, 1996 Issued
Array ( [id] => 4015805 [patent_doc_number] => 05880235 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 1999-03-09 [patent_title] => 'Copolymers useful for producing cast glass and thermally dimensionally stable molding materials' [patent_app_type] => 1 [patent_app_number] => 8/586177 [patent_app_country] => US [patent_app_date] => 1996-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12749 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/05/880/05880235.pdf [firstpage_image] =>[orig_patent_app_number] => 586177 [rel_patent_id] =>[rel_patent_doc_number] =>)
08/586177
Copolymers useful for producing cast glass and thermally dimensionally stable molding materials Jan 16, 1996 Issued
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